This page was maintained at Miss Hall's School from 2005 to 2008.
Use it as a sample of how Algebra Pinball can be run.
Also use it to get a sense of blazing fast times for each web exercise!
For more human-achievable times, click here.

ALGEBRA PINBALL

... is a collection of about 100 algebra and pre-algebra exercises (below) with an option to time yourself.
Chart progress towards mastery by your increasingly faster times!
Make it social with a fun family or classroom competition.
Master these—ace algebra!
To edit/print your own Algebra Pinball table, click here!

These were the rules for the times recorded in the chart below:

Time yourself on one of the exercises in the Algebra Pinball table below.
You must do at least 20 problems.
The number correct must be at least 90% of the number attempted. This is to prevent you from just clicking quickly until you get specific problem(s) that you know how to solve.
HAVE FUN!!! DO MATH!!!

ALL WEB EXERCISES OPEN IN A NEW WINDOW

ALGEBRA PINBALL EXERCISE	BEST SCORE at MISS HALL'S SCHOOL	FRIENDS and FAMILY of MISS HALL'S SCHOOL	FISHER CLASSES, 2007–2008
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	Dr. Carol JVF Burns Sahuarita, AZ, USA October 30, 2014 2.5 seconds per correct problem
Section 13.5: Relatively Prime Numbers and Related Concepts	Dr. Carol JVF Burns 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