1.10 Systems of measurement  (Page 10/13)

$2x+4y-5$ when
$x=7,y=8$

$12n$

$9x^2$

$3n,n^2,12,12p^2,3,3n^2$

$5,18r^2,9s,9r,5r^2,5s$

$11x^2+3x+6$

$22y^3+y+15$

$17a+9a$

$18z+9z$

$9x+3x+8$

$8a+5a+9$

$7p+6+5p-4$

$8x+7+4x-5$

the sum of 8 and 12

the sum of 9 and 1

the difference of $x$ and 4

the difference of $x$ and 3

the product of 6 and $y$

the product of 9 and $y$

Adele bought a skirt and a blouse. The skirt cost $15 more than the blouse. Let $b$ represent the cost of the blouse. Write an expression for the cost of the skirt.

Marcella has 6 fewer boy cousins than girl cousins. Let $g$ represent the number of girl cousins. Write an expression for the number of boy cousins.

ⓐ $6\_\_\_2$
ⓑ $\mathrm{-7}\_\_\_4$
ⓒ $\mathrm{-9}\_\_\_\mathrm{-1}$
ⓓ $9\_\_\_\mathrm{-3}$

ⓐ $\mathrm{-5}\_\_\_1$
ⓑ $\mathrm{-4}\_\_\_\mathrm{-9}$
ⓒ $6\_\_\_10$
ⓓ $3\_\_\_\mathrm{-8}$

ⓐ $\mathrm{-8}$ ⓑ 1

ⓐ $\mathrm{-2}$ ⓑ $6$

$\text{−}\left(\mathrm{-19}\right)$

$\text{−}\left(\mathrm{-53}\right)$

$\text{−}m$ when
ⓐ $m=3$
ⓑ $m=\mathrm{-3}$

$\text{−}p$ when
ⓐ $p=6$
ⓑ $p=\mathrm{-6}$

ⓐ $\left|7\right|$ ⓑ $\left|\mathrm{-25}\right|$ ⓒ $\left|0\right|$

ⓐ $\left|5\right|$ ⓑ $\left|0\right|$ ⓒ $\left|\mathrm{-19}\right|$

ⓐ $\mathrm{-8}\_\_\_\left|\mathrm{-8}\right|$
ⓑ $\text{−}\left|\mathrm{-2}\right|\_\_\_\mathrm{-2}$

ⓐ $\left|\mathrm{-3}\right|\_\_\_-\left|\mathrm{-3}\right|$
ⓑ $4\_\_\_-\left|\mathrm{-4}\right|$

$\left|8-4\right|$

$\left|9-6\right|$

$8\left(14-2\left|\mathrm{-2}\right|\right)$

$6\left(13-4\left|\mathrm{-2}\right|\right)$

ⓐ $\left|x\right|$ when $x=\mathrm{-28}$ ⓑ

ⓐ $\left|y\right|$ when $y=\mathrm{-37}$
ⓑ $\left|\text{−}z\right|$ when $z=\mathrm{-24}$

$\mathrm{-200}+65$

$\mathrm{-150}+45$

$2+\left(\mathrm{-8}\right)+6$

$4+\left(\mathrm{-9}\right)+7$

$140+\left(\mathrm{-75}\right)+67$

$\mathrm{-32}+24+\left(\mathrm{-6}\right)+10$

$9-3$

$\mathrm{-5}-\left(\mathrm{-1}\right)$

ⓐ $15-6$ ⓑ $15+\left(\mathrm{-6}\right)$

ⓐ $12-9$ ⓑ $12+\left(\mathrm{-9}\right)$

ⓐ $8-\left(\mathrm{-9}\right)$ ⓑ $8+9$

ⓐ $4-\left(\mathrm{-4}\right)$ ⓑ $4+4$

$10-\left(\mathrm{-19}\right)$

$11-\left(\mathrm{-18}\right)$

$31-79$

$39-81$

$\mathrm{-31}-11$

$\mathrm{-32}-18$

$\mathrm{-15}-\left(\mathrm{-28}\right)+5$

$71+\left(\mathrm{-10}\right)-8$

$\mathrm{-16}-\left(\mathrm{-4}+1\right)-7$

$\mathrm{-15}-\left(\mathrm{-6}+4\right)-3$

$\mathrm{-5}\left(7\right)$

$\mathrm{-8}\left(6\right)$

$\mathrm{-18}\left(\mathrm{-2}\right)$

$\mathrm{-10}\left(\mathrm{-6}\right)$

$\mathrm{-28}÷7$

$56÷\left(\mathrm{-7}\right)$

$\mathrm{-120}÷\left(\mathrm{-20}\right)$

$\mathrm{-200}÷25$

$\mathrm{-8}\left(\mathrm{-2}\right)-3\left(\mathrm{-9}\right)$

$\mathrm{-7}\left(\mathrm{-4}\right)-5\left(\mathrm{-3}\right)$

${\left(\mathrm{-5}\right)}^3$

${\left(\mathrm{-4}\right)}^3$

$\mathrm{-4}·2·11$

$\mathrm{-5}·3·10$

$\mathrm{-10}\left(\mathrm{-4}\right)÷\left(\mathrm{-8}\right)$

$\mathrm{-8}\left(\mathrm{-6}\right)÷\left(\mathrm{-4}\right)$

$31-4\left(3-9\right)$

$24-3\left(2-10\right)$

$x+8$ when
ⓐ $x=\mathrm{-26}$
ⓑ $x=\mathrm{-95}$

$y+9$ when
ⓐ $y=\mathrm{-29}$
ⓑ $y=\mathrm{-84}$

When $b=\mathrm{-11}$ , evaluate:
ⓐ $b+6$
ⓑ $\text{−}b+6$

When $c=\mathrm{-9}$ , evaluate:
ⓐ $c+\left(\mathrm{-4}\right)$
ⓑ $\text{−}c+\left(\mathrm{-4}\right)$

$p^2-5p+2$ when
$p=\mathrm{-1}$

$q^2-2q+9$ when $q=\mathrm{-2}$

$6x-5y+15$ when $x=3$ and $y=\mathrm{-1}$

$3p-2q+9$ when $p=8$ and $q=\mathrm{-2}$