pptx, 86.86 KB
pptx, 86.86 KB

Models several methods for adding/subtracting using mental strategies.

Creative Commons "Sharealike"

Reviews

3.8

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s2uart2

2 years ago
3

Is the answer correct on slide 9?

RunnerNZ

4 years ago
4

Thanks

zoetheodossiou

5 years ago
5

Time saver!

mrsmorgan1

6 years ago
3

Helpful slides on mental strategies for addition and subtraction, with explanations and activities for students. Thanks for sharing!

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