Basic Operations Exercises

(-15) + (-16) =

Hint

Refer to Rule #1 of adding integers: If the signs are the same, add the numbers together and keep the same sign.

31 + (-20) =

Hint

Rule #2 of adding integers: If the signs are different, subtract the two numbers and keep the sign of the number that's further from zero.

(-8) + 2 + 5 =

Hint

Add the first two numbers, then add the third.

5 + (-7) + 20 =

Hint

The first two numbers have a sum of -2.