91Ó°ÊÓ

In the following exercise, simplify:$\left(a\right)\left|0\right|\left(b\right)\left|-40\right|\left(c\right)\left|22\right|$

Divide:$\left(a\right)-63÷7\left(b\right)-115÷(-5)$

In the following exercise, fill in$<,>or=$for each of the following pairs of numbers:$\left(a\right)-6\_\_\left|-6\right|\left(b\right)-\left|-3\right|\_\_-3$

Simplify:$8(-3)+5(-7)-4$

In the following exercise, fill in $<,>or=$for each of the following pairs of numbers:$\left(a\right)\left|-5\right|\_\_-\left|-5\right|\left(b\right)9\_\_-\left|-9\right|$

Simplify:$9(-3)+7(-8)-1$

In the following exercise, simplify:$-(-5)and-\left|-5\right|$

Simplify:$\left(a\right){(-3)}^4\left(b\right)-3^4$

In the following exercises, find the place value of each digit in the given numbers.

$87,210$

$$\begin{gathered} \left(a\right)2 \\ \left(b\right)8 \\ \left(c\right)0 \\ \left(d\right)7 \\ \left(e\right)1 \end{gathered}$$

In the following exercises, write each number as a whole number using digits.

sixty-one thousand, four hundred fifteen