Question

when Iris -12 - (-12), she got a difference of -24. Is her answer correct? If not, what mistake did she make?

Answer 1

Answer: Her answer is incorrect.

Step-by-step explanation: You have to distribute the negative sign to (-12), once you do that the (-12) becomes a positive making the equations -12 + 12 resulting in your answer being 0 not -24.

Answer 2

The answer is not correct. She made the mistake of doing -12 - 12 instead of doing -12 + 12.