Using Doubles

This Using Doubles worksheet also includes:

Bring this easy shortcut to your first grade addition lesson!  By adding doubles (6+6, for example), and then adding or subtracting 1, kids learn how to solve simple addition problems with ease. This trick is especially helpful for pupils who have a hard time memorizing numbers or solving addition problems cognitively.

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CCSS: Designed
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K - 2nd
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Common Core