Previous Algebra Pinball Scores:
DETERMINING THE SIGN (PLUS OR MINUS) OF ABSOLUTE VALUE EXPRESSIONS

Most recent scores are on top.

Miss Hall's School WORLD Fisher Classes
2007–2008
Suk Young Hong
Miss Hall's School
Pittsfield, Massachusetts, USA
February 8, 2007
1.1 seconds per correct problem

Hillary Fitch
Miss Hall's School
Pittsfield, Massachusetts, USA
February 6, 2007
1.4 seconds per correct problem

Hillary Fitch
Miss Hall's School
Pittsfield, Massachusetts, USA
October 4, 2006
1.7 seconds per correct problem

Eliza Chase
Miss Hall's School
Pittsfield, Massachusetts, USA
September 26, 2006
2.5 seconds per correct problem
Hei-Ja Kim
New York City, New York, USA
January 26, 2007
4.5 seconds per correct problem
Woo Ji Kim
Miss Hall's School
Pittsfield, Massachusetts, USA
November 14, 2007
1.0 seconds per correct problem

Woo Ji Kim
Miss Hall's School
Pittsfield, Massachusetts, USA
November 13, 2007
1.3 seconds per correct problem