Math Practice Online > free > lessons > California > 3rd grade > Fast Subtraction
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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: NS 2.1 Know the addition facts (sums to 20) and the corresponding subtraction facts and commit them to memory.
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