These were the rules for the times recorded in the chart below:
|
![]() |
ALGEBRA PINBALL EXERCISE | BEST SCORE at MISS HALL'S SCHOOL |
FRIENDS and FAMILY of MISS HALL'S SCHOOL | FISHER CLASSES, 20072008 |
Section 1: Expressions versus Sentences |
Sunny Lee Miss Hall's School Pittsfield, Massachusetts, USA January 27, 2006 0.7 seconds per correct problem Click here for previous scores |
Sunho Roh Cornell University Ithaca, New York, USA February 16, 2007 0.8 seconds per correct problem Click here for previous scores |
Ji Yune Kim Miss Hall's School Pittsfield, MA, USA January 17, 2008 0.7 secs/correct problem Click here for previous scores |
Section 2: Basic Addition Practice |
Jinghui Zhang Miss Hall's School Pittsfield, Massachusetts, USA May 3, 2008 0.6 seconds per correct problem Click here for previous scores |
Suk Ryu Solebury High School New Hope, Pennsylvania, USA May 21, 2007 1.4 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, MA, USA October 6, 2007 1.1 secs/correct problem Click here for previous scores |
Section 2: Multiplication |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 3, 2007 1.0 seconds per correct problem Click here for previous scores |
Suk Ryu Solebury High School New Hope, Pennsylvania, USA May 21, 2007 1.4 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, MA, USA October 1, 2007 1.1 secs/correct problem Click here for previous scores |
Section 2: Divisibility |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 7, 2008 1.8 seconds per correct problem Click here for previous scores |
Alan Luo Shanghai University of Engineering and Science September 24, 2007 1.1 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA April 9, 2008 3.0 seconds per correct problem Click here for previous scores |
Section 2: Mixed Basic Add/Subtract/Multiply/Divide Practice |
(added May 2016; with variables) Dr. Carol JVF Burns Sahuarita, AZ 2.2 seconds per correct problem (This one should be easy to beat!) |
||
Section 3: Deciding if a number is a whole number, an integer, etc. |
Masha Jones Miss Hall's School Pittsfield, Massachusetts, USA January 4, 2006 1.4 seconds per correct problem Click here for previous scores |
Seung Hee Lee Yeon Seong Middle School Incheon, South Korea age 15 October 10, 2007 1.9 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, MA, USA October 6, 2007 1.5 secs/correct problem Click here for previous scores |
Section 4: Addition of Signed Numbers |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 9, 2007 1.1 seconds per correct problem Click here for previous scores |
Paul Yoon Solebury School New Hope, Pennsylvania, USA January 23, 2008 1.9 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, MA, USA October 6, 2007 1.3 secs/correct problem Click here for previous scores |
Section 5: Subtraction of Signed Numbers |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 3, 2007 1.1 seconds per correct problem Click here for previous scores |
Paul Yoon Solebury School New Hope, Pennsylvania, USA January 23, 2008 1.9 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA February 27, 2008 1.6 seconds per correct problem Click here for previous scores |
Section 5: Mixed Addition and Subtraction of Signed Numbers |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA April 18, 2007 1.8 seconds per correct problem Click here for previous scores |
Xiao Luo China October 12, 2007 1.7 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, MA, USA October 6, 2007 2.1 secs/correct problem Click here for previous scores |
Section 6: Writing Fractions with a Denominator of 2 in Decimal Form |
Sunny Lee Miss Hall's School Pittsfield, Massachusetts, USA June 2, 2006 1.0 seconds per correct problem Click here for previous scores |
Dong Lim Lee J-am Elementary School Seoul, Korea January 27, 2006 1.9 seconds per correct problem |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA January 16, 2008 1.0 seconds per correct problem Click here for previous scores |
Section 6: Average of Two Signed Numbers |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA January 16, 2008 1.4 seconds per correct problem Click here for previous scores |
Suk Ryu Solebury High School New Hope, Pennsylvania, USA May 21, 2007 2.7 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA February 29, 2008 1.9 seconds per correct problem Click here for previous scores |
Section 6: Average of Three Signed Numbers |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 9, 2007 1.4 seconds per correct problem Click here for previous scores |
Seung Hee Lee Yeon Seong Middle School Incheon, South Korea October 10, 2007 2.4 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 1, 2007 1.5 seconds per correct problem Click here for previous scores |
Section 7: Identifying Place Values |
Jinghui Zhang Miss Hall's School Pittsfield, Massachusetts, USA May 3, 2008 1.4 seconds per correct problem Click here for previous scores |
Dong Lim Lee J-am Elementary School Seoul, Korea June 2, 2006 3.2 seconds per correct problem Click here for previous scores |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA March 31, 2008 1.6 seconds per correct problem Click here for previous scores |
Section 7: Multiplying by Powers of Ten |
Jinghui Zhang Miss Hall's School Pittsfield, Massachusetts, USA May 3, 2008 1.4 seconds per correct problem Click here for previous scores |
Ricky Choi Dunn School Age 17 USA 2.0 seconds per correct problem |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA January 22, 2008 1.7 seconds per correct problem Click here for previous scores |
Section 8: Changing Decimals to Fractions |
Jinghui Zhang Miss Hall's School Pittsfield, Massachusetts, USA May 3, 2008 1.6 seconds per correct problem Click here for previous scores |
Dong Lim Lee J-am Elementary School Seoul, Korea June 2, 2006 3.2 seconds per correct problem Click here for previous scores |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA February 26, 2008 1.8 seconds per correct problem Click here for previous scores |
Section 8: Multiplying and Dividing Decimals by Powers of Ten |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA February 26, 2008 2.6 seconds per correct problem Click here for previous scores |
Alan Luo Shanghai University of Engineering and Science Shanghai, China April 1, 2008 2.7 seconds per correct problem Click here for previous scores |
Ju Yeon Lee Miss Hall's School Pittsfield, Massachusetts, USA December 19, 2007 3.2 seconds per correct problem Click here for previous scores |
Section 8: Changing Decimals to Percents |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA October 6, 2007 1.2 seconds per correct problem Click here for previous scores |
Dong Lim Lee J-am Elementary School Seoul, Korea May 28, 2006 3.0 seconds per correct problem Click here for previous scores |
Ju Yeon Lee Miss Hall's School Pittsfield, Massachusetts, USA December 12, 2007 1.2 seconds per correct problem Click here for previous scores |
Section 8: Changing Percents to Decimals |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA May 5, 2007 1.2 seconds per correct problem Click here for previous scores |
Rina Nakazawa Shirayuri Gakuen High School Chiyoda-ku Tokyo, Japan March 31, 2006 1.9 seconds per correct problem |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA October 6, 2007 1.3 seconds per correct problem Click here for previous scores |
Section 9: Interval and List Notation |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA March 5, 2007 1.2 seconds per correct problem Click here for previous scores |
Seung Hee Lee Yeon Seong Middle School Incheon, South Korea October 10, 2007 2.3 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 17, 2007 1.2 seconds per correct problem Click here for previous scores |
Section 10: Reading Set Notation |
Jinghui Zhang Miss Hall's School Pittsfield, Massachusetts, USA May 3, 2008 1.0 seconds per correct problem Click here for previous scores |
Ricky Choi Dunn School Age 17 USA 1.9 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA March 11, 2008 1.4 seconds per correct problem Click here for previous scores |
Section 10: Solving Simple Sentences By Inspection |
Jinghui Zhang Miss Hall's School Pittsfield, Massachusetts, USA May 3, 2008 1.1 seconds per correct problem Click here for previous scores |
Prakash Malkani Pittsfield, Massachusetts, USA January 11, 2007 4.7 seconds per correct problem |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA October 23, 2007 1.2 seconds per correct problem Click here for previous scores |
Section 10: Using Mathematical Conventions |
Jinghui Zhang Miss Hall's School Pittsfield, Massachusetts, USA May 3, 2008 1.8 seconds per correct problem Click here for previous scores |
Neel Mittal Herricks High School New York, USA January 24, 2007 7.8 seconds per correct problem |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 4, 2008 1.9 seconds per correct problem Click here for previous scores |
Section 11: Rewriting Fractions as a Whole Number Plus a Fraction |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 9, 2008 2.2 seconds per correct problem Click here for previous scores |
Prakash Malkani Pittsfield, Massachusetts, USA January 11, 2007 5.9 seconds per correct problem |
Click here for previous scores |
Section 11: Locating Fractions on a Number Line |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA October 19, 2007 2.0 seconds per correct problem Click here for previous scores |
Courtney Fitch Algonquin Regional High School Southborough, Massachusetts, USA Age 17 January 27, 2007 19.6 seconds per correct answer |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA March 11, 2008 2.0 seconds per correct problem Click here for previous scores |
Section 11: Fractions Involving Zero |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA September 27, 2007 0.7 seconds per correct problem Ji Yune Kim Miss Hall's School Pittsfield, Massachusetts, USA September 27, 2007 0.7 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA March 13, 2007 1.1 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA September 27, 2007 0.8 seconds per correct problem Click here for previous scores |
Section 12: Finding Reciprocals |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA September 27, 2007 1.1 seconds per correct problem Click here for previous scores |
Mark Lawrence Winchendon, Massachusetts, USA November 28, 2006 3.0 seconds per correct problem |
Ju Yeon Lee Miss Hall's School Pittsfield, Massachusetts, USA October 17, 2007 1.2 seconds per correct problem Click here for previous scores |
Section 12: Determining if a Product is Positive or Negative |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA March 5, 2007 1.0 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA March 13, 2007 1.9 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA October 3, 2007 1.1 seconds per correct problem Click here for previous scores |
Section 12: Multiplying and Dividing Fractions |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA March 12, 2007 2.2 seconds per correct problem Click here for previous scores |
Alan Luo Shanghai University of Engineering and Science Shanghai, China April 1, 2008 1.9 seconds per correct problem Click here for previous scores |
Ji Yune Kim Miss Hall's School Pittsfield, Massachusetts, USA October 23, 2007 2.8 seconds per correct problem Click here for previous scores |
Section 12: Practice with the Form a(b/c) |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA February 29, 2008 0.7 seconds per correct problem Click here for previous scores |
Prakash Malkani Pittsfield, Massachusetts, USA February 14, 2007 2.3 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA March 11, 2008 1.0 seconds per correct problem Click here for previous scores |
Section 12: More Practice with the Form a(b/c) |
Elaine Zhang Miss Hall's School Pittsfield, Massachusetts, USA December 4, 2007 1.5 seconds per correct problem Click here for previous scores |
Jeffrey Ellis Richmond, Massachusetts, USA May 24, 2007 6.7 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA December 11, 2007 1.6 seconds per correct problem Click here for previous scores |
Section 13: Practice With Multiples |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA February 13, 2008 0.7 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA March 13, 2007 1.5 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA February 29, 2008 0.9 seconds per correct problem Click here for previous scores |
Section 13: Finding Least Common Multiples |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA April 19, 2007 1.2 seconds per correct problem Click here for previous scores |
Paul Yoon Solebury School New Hope, Pennsylvania, USA January 23, 2008 2.5 seconds per correct problem Click here for previous scores |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA October 2, 2007 1.2 seconds per correct problem Click here for previous scores |
Section 13: Renaming Fractions with a Specified Denominator |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA October 2, 2007 2.2 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA March 12, 2007 5.6 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA October 3, 2007 2.4 seconds per correct problem Click here for previous scores |
Section 13: Practice With Factors |
Ji Yune Kim Miss Hall's School Pittsfield, Massachusetts, USA November 12, 2007 0.8 seconds per correct problem Click here for previous scores |
Paul Yoon Solebury High School New Hope, Pennsylvania, USA January 23, 2008 1.2 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA December 10, 2007 0.9 seconds per correct problem Click here for previous scores |
Section 13: Adding and Subtracting Fractions |
Sally Melville Miss Hall's School Pittsfield, Massachusetts, USA October 17, 2006 5.1 seconds per correct problem |
Prakash Malkani Pittsfield, Massachusetts, USA January 11, 2007 10.4 seconds per correct problem |
Song E Park Miss Hall's School Pittsfield, Massachusetts, USA October 4, 2007 5.7 seconds per correct problem Click here for previous scores |
Section 13: Divisibility Equivalences |
Ji Yune Kim Miss Hall's School Pittsfield, Massachusetts, USA October 18, 2007 2.0 seconds per correct problem Click here for previous scores |
Hana Rodrigs Smith College Northampton, Massachusetts, USA December 14, 2006 4.1 seconds per correct problem |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA March 31, 2008 2.2 seconds per correct problem Click here for previous scores |
Section 13.5: Prime Numbers |
Sahuarita, AZ, USA October 30, 2014 2.5 seconds per correct problem |
||
Section 13.5: Relatively Prime Numbers and Related Concepts |
Sahuarita, AZ, USA November 12, 2014 3.7 seconds per correct problem |
||
Section 14: Identifying Inequalities as True or False |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA October 24, 2007 0.9 seconds per correct problem Click here for previous scores |
Paul Yoon Solebury School New Hope, Pennsylvania, USA January 23, 2008 1.5 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA October 17, 2007 1.0 seconds per correct problem Click here for previous scores |
Section 14: Practice with the Phrases "at least" and "at most" |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 11, 2007 1.5 seconds per correct problem Click here for previous scores |
Mark Lawrence Winchendon, Massachusetts, USA November 28, 2006 3.2 seconds per correct problem |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA November 1, 2007 1.7 seconds per correct problem Click here for previous scores |
Section 14: Identifying Inequalities with Variables as True or False |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 23, 2007 0.9 seconds per correct problem Click here for previous scores |
Suk Ryu Solebury High School New Hope, Pennsylvania, USA May 21, 2007 2.0 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA October 22, 2007 1.0 seconds per correct problem Click here for previous scores |
Section 14: Solving Equations of the form $\,xy = 0$ |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA May 5, 2007 1.8 seconds per correct problem Click here for previous scores |
Suk Ryu Solebury High School New Hope, Pennsylvania, USA May 11, 2007 4.6 seconds per correct problem Click here for previous scores |
Ju Yeon Lee Miss Hall's School Pittsfield, Massachusetts, USA October 17, 2007 2.3 seconds per correct problem Click here for previous scores |
Section 15: Recognizing Zero and One |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 19, 2007 1.0 seconds per correct problem Click here for previous scores |
Prakash Malkani Pittsfield, Massachusetts, USA January 11, 2007 3.7 seconds per correct problem |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA 1.0 seconds per correct problem |
Section 16: Writing Fractions in Simplest Form |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA March 5, 2007 1.7 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA age 18 March 9, 2007 4.8 seconds per correct problem Click here for previous scores |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA October 22, 2007 2.0 seconds per correct problem Click here for previous scores |
Section 16: Deciding if a Fraction is a Finite or Infinite Repeating Decimal |
Ji Yune Kim Miss Hall's School Pittsfield, Massachusetts, USA October 22, 2007 0.8 seconds per correct problem Click here for previous scores |
Hana Rodrigs Smith College Northampton, Massachusetts, USA December 14, 2006 3.5 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA October 25, 2007 0.9 seconds per correct problem Click here for previous scores |
Section 16: Deciding if Numbers are Equal or Approximately Equal |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA October 12, 2007 1.0 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA March 13, 2007 2.8 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA October 16, 2007 1.1 seconds per correct problem Click here for previous scores |
Section 17: Rounding Decimals to a Specified Number of Places |
Soo Yoon Kim Miss Hall's School Pittsfield, Massachusetts, USA December 4, 2007 2.3 seconds per correct problem Click here for previous scores |
KangXiong Luo China October 19, 2007 2.3 seconds per correct problem Click here for previous scores |
Song E Park Miss Hall's School Pittsfield, Massachusetts, USA October 12, 2007 3.2 seconds per correct problem |
Section 18: Classifying Units as Length, Time, Volume, Weight/Mass |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 18, 2007 1.0 seconds per correct problem Click here for previous scores |
Yoo Ri Jang Yeon Seong Middle School Incheon, South Korea age 17 October 8, 2007 1.7 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA December 4, 2007 1.0 seconds per correct problem Click here for previous scores |
Section 18: Practice with Unit Abbreviations |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA September 26, 2007 1.0 seconds per correct problem Click here for previous scores |
Yoo Ri Jang Yeon Seong Middle School Incheon, South Korea age 17 October 8, 2007 1.6 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA October 19, 2007 1.0 seconds per correct problem Click here for previous scores |
Section 18: Practice with Unit Names |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA October 19, 2007 1.4 seconds per correct problem Click here for previous scores |
Katie Kellar Taconic High School Pittsfield, Massachusetts, USA Age 16 May 15, 2007 2.6 seconds per correct problem Click here for previous scores |
Ju Yeon Lee Miss Hall's School Pittsfield, Massachusetts, USA October 17, 2007 1.5 seconds per correct problem Click here for previous scores |
Section 18: Practice with Unit Conversion Information |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 3, 2008 1.8 seconds per correct problem Click here for previous scores |
Neel Mittal Herricks High School New York, USA January 26, 2007 10.0 seconds per correct problem |
Ju Yeon Lee Miss Hall's School Pittsfield, Massachusetts, USA March 3, 2008 15.9 seconds per correct problem Click here for previous scores |
Section 18: One-Step Conversions |
Sei Young Shin Miss Hall's School Pittsfield, Massachusetts, USA March 9, 2007 4.5 seconds per correct problem Click here for previous scores |
Neel Mittal Herricks High School New York, USA January 26, 2007 6.9 seconds per correct problem |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA November 29, 2007 6.2 seconds per correct problem Click here for previous scores |
Section 20: Practice with Exponents |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA May 5, 2007 1.0 seconds per correct problem Click here for previous scores |
Seung Hee Lee Yeon Seong Middle School Incheon, South Korea age 15 October 10, 2007 3.9 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA October 23, 2007 1.2 seconds per correct problem Click here for previous scores |
Section 20: Practice with Order of Operations |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 10, 2008 2.6 seconds per correct problem Click here for previous scores |
Seung Hee Lee Yeon Seong Middle School Incheon, South Korea age 15 October 10, 2007 2.6 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA October 23, 2007 4.3 seconds per correct problem Click here for previous scores |
Section 20: Taking PEMDAS Too Literally: Don't Make This Mistake! |
Sahuarita, AZ June 27, 2016 11.7 seconds per correct problem (This one should be easy to beat!) |
||
Section 20: Basic Exponent Practice with Fractions |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA February 29, 2008 1.4 seconds per correct problem Click here for previous scores |
Lisa Donfried Richmond, MA, USA January 23, 2008 4.8 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA March 31, 2008 1.7 seconds per correct problem Click here for previous scores |
Section 21: practice with $x^mx^n = x^{m+n}$ |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 17, 2007 0.9 seconds per correct problem Click here for previous scores |
Wan ho Roh Sung Gwun Gown University Korea February 16, 2007 2.0 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA October 22, 2007 1.0 seconds per correct problem Click here for previous scores |
Section 21: practice with $(x^m)^n = x^{mn}$ |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA May 5, 2007 1.0 seconds per correct problem Click here for previous scores |
Wan ho Roh Sung Gwun Gown University Korea February 16, 2007 1.9 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA October 22, 2007 1.1 seconds per correct problem Click here for previous scores |
Section 21: practice with $\displaystyle\frac{x^m}{x^n} = x^{m-n}$ |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 17, 2007 1.1 seconds per correct problem Click here for previous scores |
Wan ho Roh Sung Gwun Gown University Korea February 16, 2007 2.1 seconds per correct problem Click here for previous scores |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA October 19, 2007 1.2 seconds per correct problem Click here for previous scores |
Section 21: practice with $\displaystyle x^{-p} = \frac{1}{x^p}$ |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA October 18, 2007 0.8 seconds per correct problem Click here for previous scores |
Wan ho Roh Sung Gwun Gown University Korea February 16, 2007 1.7 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA October 22, 2007 0.8 seconds per correct problem Click here for previous scores |
Section 21: one-step exponent law practice |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA December 14, 2007 1.1 seconds per correct problem Click here for previous scores |
Wan ho Roh Sung Gwun Gown University Korea February 16, 2007 2.6 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA March 31, 2008 1.5 seconds per correct problem Click here for previous scores |
Section 21: Multi-Step Exponent Law Practice |
Rurika Oka Miss Hall's School Pittsfield, Massachusetts, USA January 24, 2006 2.1 seconds per correct problem Click here for previous scores |
Rina Nakazawa Shirayuri Gakuen High School Chiyoda-ku Tokyo, Japan January 8, 2006 5.2 seconds per correct problem |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA November 8, 2007 3.3 seconds per correct problem |
Section 22: practice with radicals |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA March 6, 2008 1.0 seconds per correct problem Click here for previous scores |
Jeffrey Ellis Richmond, Massachusetts, USA May 24, 2007 5.0 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA April 3, 2008 1.9 seconds per correct problem Click here for previous scores |
Section 22: practice with radicals (no MathPlayer version) |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA January 23, 2008 1.2 seconds per correct problem Click here for previous scores |
You Ri Jang Inchon Art High School In Cheon, South Korea Age 18 February 13, 2007 4.8 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA March 3, 2008 1.3 seconds per correct problem Click here for previous scores |
Section 22: approximating radicals |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA January 21, 2008 2.8 seconds per correct problem Click here for previous scores |
Prakash Malkani Pittsfield, Massachusetts, USA January 15, 2007 3.1 seconds per correct problem |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA February 18, 2008 3.9 seconds per correct problem Click here for previous scores |
Section 22: approximating radicals (no MathPlayer version) |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA November 7, 2007 2.7 seconds per correct problem Click here for previous scores |
Eung Keong Choi Goo Jeong Middle School Seoul, South Korea age 16 2.3 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA February 7, 2008 3.1 seconds per correct problem Click here for previous scores |
Section 23: practice with rational exponents |
Amelie Dyzmann Miss Hall's School Pittsfield, Massachusetts, USA October 25, 2006 2.9 seconds per correct problem |
Olivia Weinstein Rockport High School Rockport, Massachusetts, USA Age 16 16.6 seconds per correct problem |
OCT 30 |
Section 24: practice with $\,x\,$ and $\,-x\,$ |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA February 29, 2008 1.0 seconds per correct problem Click here for previous scores |
Anne Skakel Southborough, Massachusetts, USA Lenox, Massachusetts, USA 6.1 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA April 2, 2008 1.9 seconds per correct problem Click here for previous scores |
Section 24: practice with products of signed variables |
Ji Yune Kim Miss Hall's School Pittsfield, Massachusetts, USA December 18, 2007 1.1 seconds per correct problem Click here for previous scores |
Katie Kellar Taconic High School Pittsfield, Massachusetts, USA age 16 May 15, 2007 4.1 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA April 8, 2008 1.3 seconds per correct problem Click here for previous scores |
Section 24: practice with the distributive law |
Amelie Dyzmann Miss Hall's School Pittsfield, Massachusetts, USA October 24, 2006 1.9 seconds per correct problem Click here for previous scores |
Soo Byung Lee Goo Jung Middle School Seoul, South Korea February 12, 2007 9.7 seconds per correct problem |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA February 4, 2008 2.4 seconds per correct problem Click here for previous scores |
Section 24: mental math: addition |
Sahuarita, AZ June 30, 2016 5.4 seconds per correct problem (This one should be easy to beat!) |
||
Section 25: equal or opposites? |
Ji Yune Kim Miss Hall's School Pittsfield, Massachusetts, USA December 10, 2007 0.9 seconds per correct problem Click here for previous scores |
Yoo Hee Ju Dong Suk Girl's Middle School Korea February 16, 2007 3.1 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA November 30, 2007 1.0 seconds per correct problem Click here for previous scores |
Section 25: recognizing the patterns $\,x^n\,$ and $\,(-x)^n\,$ |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA February 27, 2008 2.4 seconds per correct problem Click here for previous scores |
Suk Ryu Solebury High School New Hope, Pennsylvania, USA Age 17 May 11, 2007 6.0 seconds per correct answer Click here for previous scores |
Ju Yeon Lee Miss Hall's School Pittsfield, Massachusetts, USA March 7, 2008 4.3 seconds per correct problem Click here for previous scores |
Section 25: writing expressions in the form $\,kx^n$ |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA February 27, 2008 1.5 seconds per correct problem Click here for previous scores |
Anne Skakel Lenox, Massachusetts, USA 9.7 seconds per correct problem Click here for previous scores |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA November 12, 2007 2.6 seconds per correct problem Click here for previous scores |
Section 25: writing more complicated expressions in the form $\,kx^n$ |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA February 25, 2008 2.0 seconds per correct problem Click here for previous scores |
Courtney Fitch Algonquin Regional High School Southborough, Massachusetts, USA Age 17 14.0 seconds per correct problem |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA November 9, 2007 3.1 seconds per correct problem Click here for previous scores |
Section 25: writing quite complicated expressions in the form $\,kx^n$ |
Sally Melville Miss Hall's School Pittsfield, Massachusetts, USA November 6, 2006 5.4 seconds per correct problem Click here for previous scores |
OCT 30 |
|
Section 26: identifying variable parts and coefficients of terms |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA October 6, 2007 6.0 seconds per correct problem Click here for previous scores |
Courtney Fitch Algonquin Regional High School Southborough, Massachusetts, USA Age 17 13.8 seconds per correct problem |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA December 4, 2007 6.4 seconds per correct problem Click here for previous scores |
Section 26: combining like terms |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA January 10, 2008 4.7 seconds per correct problem Click here for previous scores |
Prakash Malkani Pittsfield, Massachusetts, USA January 11, 2007 13.2 seconds per correct problem |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA January 21, 2008 4.8 seconds per correct problem Click here for previous scores |
Section 26: simplifying expressions like $\,-a(3b-2c-d)$ |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA April 11, 2008 3.3 seconds per correct problem Click here for previous scores |
Courtney Fitch Algonquin Regional High School Southborough, Massachusetts, USA Age 17 12.4 seconds per correct problem |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA February 13, 2008 4.9 seconds per correct problem Click here for previous scores |
Section 26: basic FOIL |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA February 22, 2008 2.6 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA March 12, 2007 10.5 seconds per correct problem |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA March 7, 2008 2.9 seconds per correct problems Click here for previous scores |
Section 26: more complicated FOIL |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA April 8, 2008 5.3 seconds per correct problem Click here for previous scores |
Emily Ellis Richmond Consolidated Richmond, Massachusetts, USA Age 13 May 24, 2007 18.8 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA April 11, 2008 6.0 seconds per correct problem Click here for previous scores |
Section 26: simplifying $\,(a+b)^2\,$ and $\,(a - b)^2$ |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA April 10, 2008 4.9 seconds per correct problem Click here for previous scores |
Tom Skakel Lenox, Massachusetts, USA November 29, 2007 11.4 seconds per correct problem |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA January 16, 2008 5.5 seconds per correct problem Click here for previous scores |
Section 26: simplifying expressions like $\,(a-b)(c + d - e)$ |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA April 11, 2008 4.4 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA March 13, 2007 14.8 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA April 10, 2008 5.0 seconds per correct problem Click here for previous scores |
Section 27: practice with the mathematical words and, or, and is equivalent to |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA November 29, 2007 1.2 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA Age 18 March 9, 2007 4.3 seconds per correct problem |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA November 30, 2007 1.3 seconds per correct problem Click here for previous scores |
Section 28: recognizing products and sums; identifying factors and terms |
Sally Melville Miss Hall's School Pittsfield, Massachusetts, USA December 11, 2006 3.6 seconds per correct problem Click here for previous scores |
Jeffrey Ellis Richmond, Massachusetts, USA May 24, 2007 11.2 seconds per correct problem Click here for previous scores |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA December 12, 2007 6.6 seconds per correct problem Click here for previous scores |
Section 28: identifying common factors |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 7, 2008 2.0 seconds per correct problem Click here for previous scores |
Suk Ryu New Hope, Pennsylvania, USA May 11, 2007 6.8 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA April 11, 2008 2.4 seconds per correct problem Click here for previous scores |
Section 28: factoring simple expressions |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA February 5, 2008 4.8 seconds per correct problem Click here for previous scores |
Cameron Skakel Lenox, Massachusetts, USA November 14, 2007 9.5 seconds per correct problem Click here for previous scores |
Ju Yeon Lee Miss Hall's School Pittsfield, Massachusetts, USA April 7, 2008 5.5 seconds per correct problem Click here for previous scores |
Section 29: listing all the factors of a whole number |
Seon Ah Yoon Miss Hall's School Pittsfield, Massachusetts, USA March 9, 2007 3.7 seconds per correct problem Click here for previous scores |
Rurika Oka United Kingdom March 25, 2008 4.8 seconds per correct answer Click here for previous scores |
Ji Yune Kim Miss Hall's School Pittsfield, Massachusetts, USA November 30, 2007 5.9 seconds per correct problem |
Section 29: finding the greatest common factor of 2 or 3 numbers |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA November 8, 2007 1.5 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA March 13, 2007 2.9 seconds per correct problem Click here for previous scores |
Soo Yeon Kim Miss Hall's School Pittsfield, Massachusetts, USA November 9, 2007 1.8 seconds per correct problem Click here for previous scores |
Section 29: finding the greatest common factor of variable expressions |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 11, 2008 3.4 seconds per correct problem Click here for previous scores |
Emily Ellis Richmond Consolidated Richmond, Massachusetts, USA Age 13 May 24, 2007 12.3 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA January 9, 2008 4.6 seconds per correct problem Click here for previous scores |
Section 29: factoring out the greatest common factor |
Sei Young Shin Miss Hall's School Pittsfield, Massachusetts, USA March 9, 2007 6.6 seconds per correct problem Click here for previous scores |
Adeline Ellis Richmond, Massachusetts, USA May 24, 2007 21.5 seconds per correct problem Click here for previous scores |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 2, 2008 8.4 seconds per correct problem Click here for previous scores |
Section 32: solving simple linear equations with integer coefficients |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 10, 2008 2.1 seconds per correct problem Click here for previous scores |
Juan Pablo Mendoza Wesleyan University Middletown, CT, USA March 13, 2007 6.7 seconds per correct problem |
Click here for previous scores |
Section 32: solving more complicated linear equations with integer coefficients |
Sally Melville Miss Hall's School Pittsfield, Massachusetts, USA October 20, 2006 6.6 seconds per correct problem |
||
Section 32: solving linear equations involving fractions |
Dr. Carol JVF Burns Sahuarita, AZ July 17, 2016 14.3 seconds per correct problem (This one should be easy to beat!) |
||
Section 32: solving linear equations, all mixed up |
Dr. Carol JVF Burns Sahuarita, AZ July 17, 2016 15.2 seconds per correct problem (This one should be easy to beat!) |
||
Section 34: simplifying basic absolute value expressions |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA December 4, 2007 1.2 seconds per correct problem Click here for previous scores |
Hong Kwan Soo Korea February 16, 2007 3.7 seconds per correct problem Click here for previous scores |
Kyung Eun Lee Miss Hall's School Pittsfield, Massachusetts, USA December 6, 2007 1.2 seconds per correct problem Click here for previous scores |
Section 34: determining the sign (plus or minus) of absolute value expressions |
Suk Young Hong Miss Hall's School Pittsfield, Massachusetts, USA February 14, 2007 0.9 seconds per correct problem Click here for previous scores |
Cameron Skakel Monument Mountain Regional High School Great Barrington, Massachusetts, USA November 15, 2007 2.5 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA November 15, 2007 0.9 seconds per correct problem Click here for previous scores |
Section 38: identifying perfect squares |
Ji Yune Kim Miss Hall's School Pittsfield, Massachusetts, USA January 18, 2008 0.8 seconds per correct problem Click here for previous scores |
Anne Skakel Lenox, Massachusetts, USA December 10, 2007 1.2 seconds per correct problem Click here for previous scores |
Woo Ji Kim Miss Hall's School Pittsfield, Massachusetts, USA December 4, 2007 0.9 seconds per correct problem Click here for previous scores |
Section 40: factoring trinomials |
Sei Young Shin Miss Hall's School Pittsfield, Massachusetts, USA March 9, 2007 4.4 seconds per correct problem Click here for previous scores |
Olivia Weinstein Rockport High School Rockport, Massachusetts, USA Age 16 17.9 seconds per correct problem |
Hyun Sun Seo Miss Hall's School Pittsfield, Massachusetts, USA April 8, 2008 5.2 seconds per correct problem Click here for previous scores |
Section 41: identifying quadratic equations |
Dr. Carol JVF Burns Sahuarita, AZ July 21, 2016 2.9 seconds per correct problem (This one should be easy to beat!) |
||
Section 42: Factoring Trinomials of the Form $\,ax^2 + bx + c\,$ |
Dr. Carol JVF Burns Sahuarita, AZ July 21, 2016 15.8 seconds per correct problem (I used the zeros on the graph to help me factor!) |
||
Section 43: Writing Expressions Involving Percent Increase and Decrease |
Dr. Carol JVF Burns Sahuarita, AZ July 21, 2016 5.6 seconds per correct problem |