Adding Integers with Algebra Tiles

To add two integers, like 2 + (-7), model the addends using 2 positive unit tiles and 7 negative unit tiles. Combine positive and negative tiles to make as many zero pairs as possible. When no more zero pairs can be made there are 5 negative unit tiles remaining, so 2 + (-7) equals -5.

Adding Integers using the Brainingcamp Algebra Tiles virtual manipulative.

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Brainingcamp produces virtual manipulatives for iPads, Chromebooks, PCs, and Macs.