If you need help starting the problem, look at the Math Notes box in Lesson 2.2.4.

Begin by sketching a model of the integers.

$-\quad - \ - \ -\\ - \quad - \ - \ - \\ -2 \quad \quad -6$

Use the model you just sketched to help you determine what number the expression represents.

This expression represents $-8$.

Use part (a) as a guide for this problem. Remember to look for and eliminate zeros.

This expression represents $0$. Remember to draw a diagram to model this expression.

Use part (a) as a guide for solving this problem.