91Ó°ÊÓ

In the following exercise, simplify the expression:${(-3)}^5$

In the following exercise, simplify the expression:$-4^2$

In the following exercise, simplify the expression:$-6^2$

In the following exercise, simplify the expression:$-3(-5)\left(6\right)$

In the following exercise, simplify the expression:$-4(-6)\left(3\right)$

In the following exercise, simplify the expression:$(8-11)(9-12)$

In the following exercise, simplify the expression:$(6-11)(8-13)$

In the following exercise, simplify the expression:$26-3(2-7)$

Round to the nearest ten.

$$\begin{gathered} \left(a\right)1,492 \\ \left(b\right)1,497 \end{gathered}$$

In the following exercise, simplify the expression:$23-2(4-6)$