3.5 Multiplication and division of signed numbers

$3(-8)$

$4(16)$

$(-6)(-5)$

$(-7)(-2)$

$(-1)(4)$

$(-7)7$

$\frac{-24}{-6}$

$\frac{30}{-5}$

$\frac{-54}{27}$

$\frac{51}{17}$

Find the value of $\frac{-7(4-8)+2(1-11)}{-5(1-6)-17}$ .

Find the value of $P=\frac{n(n-3)}{2n}$ , if $n=5$ .

$(-2)(-8)$

$(-3)(-9)$

$(-4)(-8)$

$(-5)(-2)$

$(-6)(-9)$

$(-3)(-11)$

$(-8)(-4)$

$(-1)(-6)$

$(3)(-12)$

$(4)(-18)$

$8(-4)$

$5(-6)$

$9(-2)$

$7(-8)$

$(-6)4$

$(-7)6$

$(-10)9$

$(-4)12$

$(10)(-6)$

$(-6)(4)$

$(-2)(6)$

$(-8)(7)$

$\frac{21}{7}$

$\frac{42}{6}$

$\frac{-39}{3}$

$\frac{-20}{10}$

$\frac{-45}{-5}$

$\frac{-16}{-8}$

$\frac{25}{-5}$

$\frac{36}{-4}$

$8-(-3)$

$14-(-20)$

$20-(-8)$

$-4-(-1)$

$0-4$

$0-(-1)$

$-6+1-7$

$15-12-20$

$1-6-7+8$

$2+7-10+2$

$3(4-6)$

$8(5-12)$

$-3(1-6)$

$-8(4-12)+2$

$-4(1-8)+3(10-3)$

$-9(0-2)+4(8-9)+0(-3)$

$6(-2-9)-6(2+9)+4(-1-1)$

$\frac{3(4+1)-2(5)}{-2}$

$\frac{4(8+1)-3(-2)}{-4-2}$

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

$\frac{-3(4-2)+(-3)(-6)}{-4}$

$-1(4+2)$

$-1(6-1)$

$-(8+21)$

$-(8-21)$

$-(10-6)$

$-(5-2)$

$-(7-11)$

$-(8-12)$

$-3[(-1+6)-(2-7)]$

$-2[(4-8)-(5-11)]$

$-5[(-1+5)+(6-8)]$

$-[(4-9)+(-2-8)]$

$-3[-2(1-5)-3(-2+6)]$

$-2[-5(-10+11)-2(5-7)]$

$\begin{array}{cc}P=R-C.& \text{Find}P\text{if}R=2000\text{and}C=2500.\end{array}$

$\begin{array}{cc}z=\frac{x-u}{s}.& \text{Find}z\text{if}x=23,u=25,\text{and}s=1.\end{array}$

$\begin{array}{cc}z=\frac{x-u}{s}.& \text{Find}z\text{if}x=410,u=430,\text{and}s=\mathrm{2.5.}\end{array}$

$\begin{array}{cc}m=\frac{2s+1}{T}.& \text{Find}m\text{if}s=-8\text{and}T=5.\end{array}$

$\begin{array}{cc}m=\frac{2s+1}{T}.& \text{Find}m\text{if}s=-10\text{and}T=-5.\end{array}$

$\begin{array}{cc}F=(p_1-p_2)r^4\cdot 9.& \text{Find}F\text{if}{p}_1=10,p_2=8,r=3.\end{array}$

$\begin{array}{cc}F=(p_1-p_2)r^4\cdot 9.& \text{Find}F\text{if}{p}_1=12,p_2=7,r=2.\end{array}$

$\begin{array}{cc}P=n(n-1)(n-2).& \text{Find}P\text{if}n=-4.\end{array}$

$\begin{array}{cc}P=n(n-1)(n-2)(n-3).& \text{Find}P\text{if}n=-5.\end{array}$

$\begin{array}{cc}P=\frac{n(n-2)(n-4)}{2n}.& \text{Find}P\text{if}n=-6.\end{array}$

( [link] ) What natural numbers can replace $x$ so that the statement $-4<x\le 3$ is true?

( [link] ) Simplify $\frac{{(x+2y)}^5{(3x-1)}^7}{{(x+2y)}^3{(3x-1)}^6}$ .

( [link] ) Simplify ${(x^n{y}^{3t})}^5$ .

( [link] ) Find the sum. $-6+(-5)$ .

( [link] ) Find the difference. $-2-(-8)$ .