Question

Question 3 (d)

Fill in the blanks:

(–4) + ___ = –12

Answer 1

The equation above can be interpreted as follows:

we have to add some number to (-4) so that we get (-12).

However, (-12) is to the left of (-4) on the number line. We need to go 8 units to the left of (-4) on the number line to reach -12.

Hence, we need to subtract 8 from (-4).

($\because$ If we are going to the left on the number line, we are subtracting).

So, the required number is (-8).

(–4) + $\left(\underset{–}{-8}\right)$ = –12