Using an abacus, show how you can decompose to add 27 + 18.

by Sherry McElhannon | Apr 13, 2023

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Using an abacus, show how you can decompose to add 19 + 13.

by Sherry McElhannon | Apr 13, 2023

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See It: Adding with D.C. (2-Digit by 2-Digit)

by Sherry McElhannon | Apr 11, 2023

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Subtraction Strategies with Minni and Subbi

by Sherry McElhannon | Feb 14, 2023

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Subtraction with Springling by Grade Level

by Sherry McElhannon | Oct 25, 2022

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