Unit Review: Expressions

X.1Write an expression for each.

1. 1
   Y plus 12
2. 2
   4 times n
3. 3
   M plus 14
4. 4
   12 more than 15 times x

X.2Answer each question about the expression.

1. 5
   Number of terms in $12+9k+2b$ 
2. 6
   Coefficient of $m$ in $12z+3m+3k+18$ 

X.2Answer each question about the expression. (continued)

1. 7
   Coefficient of $k$ in $12k+10y+4$ 
2. 8
   Coefficient of $n$ in $4m+12n+16$ 

X.3X.4Evaluate each expression for the given value.

1. 9
   $10+5b$ when $b=2$
2. 10
   $6b-1$ when $b=9$
3. 11
   $\frac{a}{2}+4$ when $a=10$
4. 12
   $6x+12$ when $x=9$
5. 13
   $3(a+3)$ when $a=3$
6. 14
   $2(a+18)$ when $a=3$
7. 15
   $p^2+19$ when $p=5$
8. 16
   $b^2+12$ when $b=7$

X.5Evaluate each expression for the given values.

1. 17
   $yb+15$ when $y=11$, $b=4$
2. 18
   $x^2-y$ when $x=3$, $y=7$

X.5Evaluate each expression for the given values. (continued)

1. 19
   $6b-a$ when $b=11$, $a=7$
2. 20
   $4a+8n$ when $a=7$, $n=6$

X.6Evaluate each expression for the given value.

1. 21
   $5(x+5)$ when $x=11$
2. 22
   $3m^2$ when $m=11$
3. 23
   $n^2+12$ when $n=11$
4. 24
   $7(m+9)$ when $m=7$

X.1Write Variable Expressions

1. 1$y+12$
2. 2$4n$
3. 3$m+14$
4. 4$15x+12$

X.2Terms & Coefficients

1. 5$3$
2. 6$3$
3. 7$12$
4. 8$12$

X.3X.4Evaluate each expression for the given value.

1. 9$20$
2. 10$53$
3. 11$9$
4. 12$66$
5. 13$18$
6. 14$42$
7. 15$44$
8. 16$61$

X.5Evaluate with Two Variables

1. 17$59$
2. 18$2$
3. 19$59$
4. 20$76$

X.6Evaluating Expressions

1. 21$80$
2. 22$363$
3. 23$133$
4. 24$112$