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Tool: Everyday Mathematics® Subtraction Top-It™
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Go to: http://itunes.apple.com/.../id425203268 (opens a new window)
Description: The game offers a way to practice and reinforce 2-digit subtraction computation and number comparisons. Players take turns dealing two 2-digit number cards to each player, finding their differences, and then comparing the differences. Players score points for correctly finding their difference, identifying the greater difference, and for having the greater difference. The player with the most points at the end of 8 rounds wins. Visual and audio reinforcement of correct and incorrect answers help players master subtraction computation and comparison skills. Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later.
Technology Type: iPad 
Author: McGraw-Hill School Education Group
Language: English 
Cost: Requires payment for use

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