Question

Match each expression with its sum or difference

Answer 1

`1-4=-3\\-1-4=-5\\-1+4=3\\1-(-4)=5`

Explanation:

The hardest part about negative numbers in addition is remembering when to add, rather than subtract. In the last equation, we add the numbers together, because the negative sign cancels out with subtraction. All of the other equations we can follow exactly what it says to do, because there are no minus signs right next to each other.

Answer 2

1-4=-3

-1-4=-5

-1+4=3

1-|-4|=5