### Home > MC1 > Chapter 9 > Lesson 9.2.4 > Problem9-90

9-90.

Use correct order of operations to simplify each expression.

1. $10 \cdot \frac { 1 } { 2 } + ( - 6 ) ( - 3 )$

Simplify each term. $5 + 18$

Combine the terms. $5 + 18 = 23$

$23$

1. $\frac { - 5 + ( - 6 ) ( \frac { 2 } { 3 } ) } { - 3 }$

Remember to simplify each term in the numerator, and then the numerator itself, before dividing.