Not Negatives–Subtraction

In summer school, I'm teaching what used to be known as pre-algebra and happily, my colleagues had a whole bunch of worksheets that I got on a data stick. Very nice, and the curriculum was very good, leaving me time to tweak but not spend all my time inventing. It's not like the curriculum was…

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Not Negatives–Subtraction

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Not Negatives–Subtraction

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