EXERCISE 1.2

Write down a pair of integers whose sum is $0$.

Write a negative integer and a positive integer whose sum is $-5.$

Write a negative integer and a positive integer whose difference is $-3.$

Fill in the blank to make the following statement true:

 $\left(-5\right)+\left(-8\right)=(-8)+($_____$)$

$-53+$_____$=-53$

$17+$_____$=0$

$[13+(-12\left)\right]+($_____$)=13+\left[\left(-12\right)+\left(-7\right)\right]$

$(-4)+\left[15+\left(-3\right)\right]=\left[-4+15\right]+$_____