### Home > MC2 > Chapter 5 > Lesson 5.3.3 > Problem5-112

5-112.

Simplify each numerical expression.

1. $\frac { 1 } { 2 } ( 5 + 13 ) - 4 \cdot 5$

First simplify the terms in parentheses, then exponents, the terms that are multiplied or divided, and finally the terms that are added or subtracted.

$−11$

1. $(5 + 11)-(24-15) · (3)$

See part (a).

1. $6^2 + 3 · 7-9 ÷ 3$

See part (a).

$54$