Subtract 8, 9, & 10 within 10
Subtract 8, 9, & 10 within 10
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1.OA.6
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About This Sprint
Students can use counting backwards to solve, but both of the following methods are more efficient solving strategies. For the problem 10 - 8:
Raise 10 fingers, then fold down 8 at once.
Count up to 10 from 8.