Add (-12) and (-15).

Question

A. -3
B. 27
C. 3
D. -27

Answer 1

To add (-12) and (-15), you need to combine the numbers while keeping track of their signs. When you add two negative numbers, you keep the negative sign and add their absolute values.

Here, the absolute values are 12 and 15.

12 + 15 = 27

Since both numbers were negative, the result is also negative:

So, (-12) + (-15) = -27.

The correct answer is:
D. -27