PPT-SIX SUBTRACTION STRATEGIES
SO
pinperc
Published 2020-06-17 | 4914 Views
1 Round the Subtrahend to a Multiple of 10 and Adjust 63 28 63 30 33 33 2 35 1 Round the Subtrahend to a Multiple of 10 and Adjust 81 47 2 Decompose the Subtrahend
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