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topic A
2 hours

Foundations for Fluency with Sums and Differences Within 100


Students learn sums and differences within 100 by focusing on the decompositions of any number within 10, partners to 10, and teen numbers as 10+n.


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From of the New York State Education Department. Grade 2 Mathematics Module 1, Topic A. Available from; accessed 2015-05-29.
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