Question 1

Subtract.
-$31-13.61$

Accepted Answer

A)  17.49 
B)  17.29 
C)  17.39 
D)  17.38

Question 2

Find the absolute value.
-$\left|5 \frac{5}{8}\right|$

Accepted Answer

A)  $-5 \frac{5}{8}$ 
B)  $5 \frac{5}{8}$ 
C)  0 
D)  $10 \frac{5}{8}$

Question 3

Add. Do not use a number line except as a check.
-$-60+0$

Accepted Answer

A)  -600 
B)  -60 
C)  60 
D)  0

Question 4

Evaluate.
-$4 x$, when $x=4$

Accepted Answer

A)  22 
B)  8 
C)  72 
D)  16

Question 5

Write an equivalent expression. Use an associative law.
-(9s)t

Accepted Answer

A)  $9(\mathrm{st})$ 
B)  $\mathrm{t}(9 \mathrm{~s})$ 
C)  (s9)t 
D)  $9 s+9 t$

Question 6

State the real number that corresponds to the situation.
-Mr. Voss increased his speed by 19 miles per hour.

Accepted Answer

A)  -19 
B)  19

Question 7

Subtract.
-0 - 13

Accepted Answer

A)  $\frac{1}{13}$ 
B)  0 
C)  13 
D)  -13

Question 8

Convert to decimal notation.
-$\frac{3}{8}$

Accepted Answer

A)  1.125 
B)  0.75 
C)  0.33 
D)  0.375

Question 9

Multiply.
-$-6 \cdot 2$

Accepted Answer

A)  -14 
B)  6 
C)  -12 
D)  -6

Question 10

Graph the numbers on a number line.
-$-1 \frac{2}{3}, 1,3,5 \frac{2}{3}$

Accepted Answer

A)   
B)   
C)   
D)

Question 11

Provide an appropriate response.
-Choose the expression that is equivalent to the following: $0+2 c$

Accepted Answer

A)  $2+c$ 
B)  0 
C)  $-2 c$ 
D)  $2 \mathrm{c}$

Question 12

Write an equivalent expression. Use a commutative law.
-$9+x y$

Accepted Answer

A)  $x y+9$, or $9+y x$ 
B)  $9(1+x y)$ 
C)  $9+x+y$ 
D)  $9 x y$, or $9 y x$

Question 13

State the real number that corresponds to the situation.
-A football team lost 21 yards on one play.

Accepted Answer

A)  -21 
B)  21

Question 14

Evaluate $-(-x)$ for the given value of $x$.
-$\mathrm{x}=\frac{19}{2}$

Accepted Answer

A)  $\frac{2}{19}$ 
B)  $\frac{19}{2}$ 
C)  $-\frac{2}{19}$ 
D)  $-\frac{19}{2}$

Question 15

Find the absolute value.
-| $14 \mid$

Accepted Answer

A)  0 
B)  14 
C)  -14 
D)  28

Question 16

Evaluate.
-$x+y$, when $x=2$ and $y=4$

Accepted Answer

A)  -2 
B)  -6 
C)  6 
D)  8

Question 17

Multiply.
-$-50 \cdot(-0.2) \cdot 4 \cdot(-0.09)$

Accepted Answer

A)  36 
B)  -3.6 
C)  3.6 
D)  -36

Question 18

Add. Do not use a number line except as a check.
-$-\frac{6}{7}+\frac{5}{7}$

Accepted Answer

A)  $\frac{11}{7}$ 
B)  $\frac{1}{7}$ 
C)  $-\frac{1}{7}$ 
D)  $-\frac{11}{7}$

Question 19

Subtract.
-$-8-(-17)$

Accepted Answer

A)  -25 
B)  9 
C)  -8 
D)  -9

Question 20

State the real number that corresponds to the situation.
-The stock market gained 46 points on Monday.

Accepted Answer

A)  46 
B)  -46

Exam 7: Introduction to Real Numbers and Algebraic Expressions

Subtract. - $31-13.61$

Find the absolute value. - $\left|5 \frac{5}{8}\right|$

Add. Do not use a number line except as a check. - $-60+0$

Evaluate. - $4 x$ , when $x=4$

Write an equivalent expression. Use an associative law. -(9s) t

State the real number that corresponds to the situation. -Mr. Voss increased his speed by 19 miles per hour.

Subtract. -0 - 13

Convert to decimal notation. - $\frac{3}{8}$

Multiply. - $-6 \cdot 2$

Graph the numbers on a number line. - $-1 \frac{2}{3}, 1,3,5 \frac{2}{3}$ $Graph the numbers on a number line. - -1 \frac{2}{3}, 1,3,5 \frac{2}{3} A) B) C) D)$

Provide an appropriate response. -Choose the expression that is equivalent to the following: $0+2 c$

Write an equivalent expression. Use a commutative law. - $9+x y$

State the real number that corresponds to the situation. -A football team lost 21 yards on one play.

Evaluate $-(-x)$ for the given value of $x$ . - $\mathrm{x}=\frac{19}{2}$

Find the absolute value. -| $14 \mid$

Evaluate. - $x+y$ , when $x=2$ and $y=4$

Multiply. - $-50 \cdot(-0.2) \cdot 4 \cdot(-0.09)$

Add. Do not use a number line except as a check. - $-\frac{6}{7}+\frac{5}{7}$

Subtract. - $-8-(-17)$

State the real number that corresponds to the situation. -The stock market gained 46 points on Monday.

Exam 7: Introduction to Real Numbers and Algebraic Expressions

Subtract. - 31−13.6131-13.6131−13.61

Find the absolute value. - ∣558∣\left|5 \frac{5}{8}\right|​585​​

Add. Do not use a number line except as a check. - −60+0-60+0−60+0

Evaluate. - 4x4 x4x , when x=4x=4x=4

Write an equivalent expression. Use an associative law. -(9s) t

State the real number that corresponds to the situation. -Mr. Voss increased his speed by 19 miles per hour.

Subtract. -0 - 13

Convert to decimal notation. - 38\frac{3}{8}83​

Multiply. - −6⋅2-6 \cdot 2−6⋅2

Graph the numbers on a number line. - −123,1,3,523-1 \frac{2}{3}, 1,3,5 \frac{2}{3}−132​,1,3,532​

Provide an appropriate response. -Choose the expression that is equivalent to the following: 0+2c0+2 c0+2c

Write an equivalent expression. Use a commutative law. - 9+xy9+x y9+xy