Question

Your friend solved 7.15 + (-12.76) = 19.91. Are they correct? Explain your reasoning.

Answer 1

they are not correct because 7.15 + (-12.76) equals −5.61 not 19.91

Explanation:

hope this helps

Answer 2

he is not correct

correct answer is -5.61

Explanation:

he added them together but did not account for the negative in the second term