Using $1.64 Puzzle, students can practice their adding skills by placing the correct coins...
Added Dec 9, 2000
100-cell calculation is invented to develop a fundamental mathematic capacity of...
10.4 / 10.5 / 10.6 / OS X / 10.7
This program will help you learn basic addition and subtraction.
Added Feb 21, 2000
The Integer Balance Beam Puzzles application lets you practice adding and subtracting...
Added Dec 24, 2000
Students are shown eight integers, and they have to pick three that add up to a given sum.
This program will help you learn counting, adding and subtracting.
Added Mar 11, 1998
This is a simple "mental math" game that is played against the computer.
Added Feb 17, 2002