Teacher/User Name: DEMO Name:__________________________
Practice Problems Period: ________ Date: ____________

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Solve. Explain how you get the answer without using a calculator:

1) How do you subtract: a positive number minus a positive number?





2) -12 − -17 =
3) -5 − 17 =





4) -6 − 10 =
5) -11 − -13 =





6) How do you subtract: a negative number minus a negative number?
7) 12 − 18 =





8) -3 − -16 =

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