Question

For (−5) − (−1), which operation should be done first according to the rule?

Options

• Add −5 and −1

• Change to −5 + 1

• Change to 5 − 1

• Change to 5 + 1

Answer 1

Change to −5 + 1

Explanation: 

For (−) − (−), change subtraction to addition and change the sign of the second number: (−5) − (−1) = −5 + 1.