Question

how can we verify an answer of addition​

Answer 1

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★ Addition (+) and subtraction (-) are opposite operations in math, so you can use one to check the answer of the other one. The first way says, if we start with 2 and add 3, we get 5. The second way says, if we start with 5 and take away 3, we get 2. We are just playing with the same numbers forward and backward.

Answer 2

Answer:

to verify an answer of addition

just use the calculator

or try subtracting to get 0