pptx, 659.21 KB
pptx, 659.21 KB
I've adapted an idea I saw on Resourceaholic to introduce adding and subtracting with directed numbers. Print the last two slides as worksheets.
Creative Commons "Sharealike"

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3.5

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maricel87me

2 years ago
4

Useful, thanks

dwatson802

5 years ago
3

Good jokes :)

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