Hi there!
example of additon problem:
n+2=3
2+n=3
3=n+2
3=2+n
we can change this by:
3-2=n
n=3-2
Therefore, if you want to find the answer of a addition problem, reverse the equaltipn into subtraction..
You can write a subtraction problem as a division problem by subtracting one of the addends from the sum, then your other addend would be the answer.
Example :
5 + 6 = 11
11 - 5 = 6
5.8m questions
7.5m answers