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20 questions
9+(−6)
15
-15
3
-3
9+6
15
-15
3
-3
−9+6
15
-15
3
-3
Rewrite this problem as an addition problem.
-22 - (-7)
-22 + 7
-22 + (-7)
22 + 7
22 + (-7)
Rewrite this subtraction problem as an addition problem.
15 - 45
15 + 45
15 + (-45)
-15 + 45
-15 + (-45)
15 - 45
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