Definition: Opposite, reverse operations. Addition and subtraction are inverse operations and multiplication and division are inverse operations. Inverse operations are handy for checking your calculations. You can use addition to check subtraction and vice versa. The same can be done for multiplication and division.
Activity 1: Use these numbers to make 2 addition and 2 subtraction sums
123 456 579
872 72 800
567 232 799
Activity 2:
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