### Home > AC > Chapter 3 > Lesson 3.1.2 > Problem3-16

3-16.

Use the Order of Operations to simplify the following expressions.

1. $5−2·3^2$

$5−2·3·3$

Remember to follow the Order of Operations, or circle the terms.

$−13$

1. $(−2)^2$

See the hint in part (a).

$(−2)(−2)$

$4$

1. $18\div3·6$

When circling the terms, this is one term.

Order of Operations: When only multiplication and division are in one term, perform the operations from left to right.

$36$

1. $−2^2$

See parts (a) and (b).

1. $(5−3)(5+3)$

See the hint in part (a).

$16$

1. $24·\frac{1}{4}\div(−2)$

See the hints in parts (a) and (c).

The answers are different because part (b) is $(−2)(−2)$ and part (d) is $−(2·2)$.