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Fast Subtraction
Simple subtraction with 2 operands. For examp le, 9-5, 5-2, etc. The focus here is to build up speed.
This topic aligns to the following state standards
Grade 1: NO MA.1.3.2: Use a variety of strategies to solve number problems involving addition and subtraction (e.g., comparing sets, counting on, counting backwards, doubles, doubles plus one)
Grade 2: NO MA.2.3.1: Recall addition facts and their corresponding subtraction facts up to twenty
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