Question 1

Subtract.
-$-\frac{1}{8}-\frac{1}{5}$

Accepted Answer

A)  -1 
B)  $-\frac{3}{40}$ 
C)  $-\frac{13}{40}$ 
D)  $-\frac{2}{13}$ 
A)  -1 
B)  $-\frac{3}{40}$ 
C)  $-\frac{13}{40}$ 
D)  $-\frac{2}{13}$

Question 2

Add. Do not use a number line except as a check.
-$-9.2+5.4$

Accepted Answer

A)  -3.8 
B)  14.6 
C)  -14.6 
D)  3.8 
A)  -3.8 
B)  14.6 
C)  -14.6 
D)  3.8

Question 3

Evaluate.
-$\frac{9 m}{n}$, when $m=12$ and $n=4$

Accepted Answer

A)  54 
B)  3 
C)  9 
D)  27 
A)  54 
B)  3 
C)  9 
D)  27

Question 4

Subtract.
-$-2.2-0$

Accepted Answer

A)  0 
B)  undefined 
C)  -2.2 
D)  2.2 
A)  0 
B)  undefined 
C)  -2.2 
D)  2.2

Question 5

List the terms of the expression.
-$6-6 a+8 b$

Accepted Answer

A)  $-6,8 b$ 
B)  6, -6, a, 8, b 
C)  6, $-6 \mathrm{a}, 8 \mathrm{~b}$ 
D)  6,6a, $8 \mathrm{~b}$ 
A)  $-6,8 b$ 
B)  6, -6, a, 8, b 
C)  6, $-6 \mathrm{a}, 8 \mathrm{~b}$ 
D)  6,6a, $8 \mathrm{~b}$

Question 6

Simplify.
-$2\{[8(x-1)+5]-[2(4 x-1)+5]\}$

Accepted Answer

A)  -12 
B)  0 
C)  $16 x-6$ 
D)  $32 x-12$ 
A)  -12 
B)  0 
C)  $16 x-6$ 
D)  $32 x-12$

Question 7

Divide.
-$\frac{4.2}{0.6}$

Accepted Answer

A)  36 
B)  $\frac{1}{7}$ 
C)  3.6 
D)  7 
A)  36 
B)  $\frac{1}{7}$ 
C)  3.6 
D)  7

Question 8

Solve the problem.
-In four rounds of a card game, you get scores of $-10,1,-4$, and -7 . What is your final score?

Accepted Answer

A)  2 
B)  -20 
C)  20 
D)  -2 
A)  2 
B)  -20 
C)  20 
D)  -2

Question 9

Solve the problem.
-Monday's closing value of your company's stock was up $\frac{3}{4}$. Tuesday's was up $\frac{3}{16}$, Wednesday's was down $\frac{1}{8}$, but Thursday's closing was up again by $\frac{3}{8}$. Finally, the stock closed the week down $\frac{1}{8}$. What was the net change for the week?

Accepted Answer

A)  $\frac{11}{16}$ 
B)  $\frac{17}{16}$ 
C)  $\frac{21}{16}$ 
D)  $\frac{25}{16}$ 
A)  $\frac{11}{16}$ 
B)  $\frac{17}{16}$ 
C)  $\frac{21}{16}$ 
D)  $\frac{25}{16}$

Question 10

Add. Do not use a number line except as a check.
-$-5+\left(-\frac{7}{10}\right)+\frac{3}{10}$

Accepted Answer

A)  -54 
B)  $-\frac{27}{5}$ 
C)  -6 
D)  $-\frac{9}{10}$ 
A)  -54 
B)  $-\frac{27}{5}$ 
C)  -6 
D)  $-\frac{9}{10}$

Question 11

Evaluate the expression for the given value of $x$.
-$-2 x^{2}, x=-6$

Accepted Answer

A)  -24 
B)  -72 
C)  72 
D)  144 
A)  -24 
B)  -72 
C)  72 
D)  144

Question 12

Write an equivalent expression. Use a commutative law.
-$w x$

Accepted Answer

A)  $\frac{1}{w x}$ 
B)  $x w$ 
C)  $w \div x$ 
D)  $w+x$ 
A)  $\frac{1}{w x}$ 
B)  $x w$ 
C)  $w \div x$ 
D)  $w+x$

Question 13

Simplify.
-$\frac{45 x y}{36 x y}$

Accepted Answer

A)  $-\frac{5}{4}$ 
B)  $-\frac{5 x y}{4}$ 
C)  $\frac{5}{4}$ 
D)  $\frac{5 x y}{4}$ 
A)  $-\frac{5}{4}$ 
B)  $-\frac{5 x y}{4}$ 
C)  $\frac{5}{4}$ 
D)  $\frac{5 x y}{4}$

Question 14

Remove parentheses and simplify.
-$6 x-(4-4 x)$

Accepted Answer

A)  $2 x-4$ 
B)  $10 x-4$ 
C)  $10 x+4$ 
D)  $6 x-8$ 
A)  $2 x-4$ 
B)  $10 x-4$ 
C)  $10 x+4$ 
D)  $6 x-8$

Question 15

Factor. Check by multiplying.
-ar - as + at

Accepted Answer

A)  $a(r+s+t)$ 
B)  $a(r-s+t)$ 
C)  $r(a-s+t)$ 
D)  $\operatorname{ar}(1-s+t)$ 
A)  $a(r+s+t)$ 
B)  $a(r-s+t)$ 
C)  $r(a-s+t)$ 
D)  $\operatorname{ar}(1-s+t)$

Question 16

Solve the problem.
-In a certain location, the highest temperature recorded was $103^{\circ} \mathrm{F}$. The lowest temperature recorded was 131 degrees less than the highest. What was the lowest temperature?

Accepted Answer

A)  $0{ }^{\circ} \mathrm{F}$ 
B)  $28^{\circ} \mathrm{F}$ 
C)  $-138^{\circ} \mathrm{F}$ 
D)  $-28^{\circ} \mathrm{F}$ 
A)  $0{ }^{\circ} \mathrm{F}$ 
B)  $28^{\circ} \mathrm{F}$ 
C)  $-138^{\circ} \mathrm{F}$ 
D)  $-28^{\circ} \mathrm{F}$

Question 17

Graph the numbers on a number line.
-$-11,-9,-7,-5$

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 18

Add. Do not use a number line except as a check.
-$-2.6+(-7.3)$

Accepted Answer

A)  9.9 
B)  -4.7 
C)  4.7 
D)  -9.9 
A)  9.9 
B)  -4.7 
C)  4.7 
D)  -9.9

Question 19

Subtract.
-$0.65-(-0.48)$

Accepted Answer

A)  0.17 
B)  0.312 
C)  1.23 
D)  1.13 
A)  0.17 
B)  0.312 
C)  1.23 
D)  1.13

Question 20

Solve the problem.
-A population of a rural town was 12,000 . It decreased 430 each year for $6 \mathrm{yr}$. What was the population of the town after $6 \mathrm{yr}$ ?

Accepted Answer

A)  9850 
B)  8990 
C)  9420 
D)  14,580 
A)  9850 
B)  8990 
C)  9420 
D)  14,580

Subtract. - $-\frac{1}{8}-\frac{1}{5}$

Add. Do not use a number line except as a check. - $-9.2+5.4$

Evaluate. - $\frac{9 m}{n}$ , when $m=12$ and $n=4$

Subtract. - $-2.2-0$

List the terms of the expression. - $6-6 a+8 b$

Simplify. - $2\{[8(x-1)+5]-[2(4 x-1)+5]\}$

Divide. - $\frac{4.2}{0.6}$

Solve the problem. -In four rounds of a card game, you get scores of $-10,1,-4$ , and -7 . What is your final score?

Add. Do not use a number line except as a check. - $-5+\left(-\frac{7}{10}\right)+\frac{3}{10}$

Evaluate the expression for the given value of $x$ . - $-2 x^{2}, x=-6$

Write an equivalent expression. Use a commutative law. - $w x$

Simplify. - $\frac{45 x y}{36 x y}$

Remove parentheses and simplify. - $6 x-(4-4 x)$

Factor. Check by multiplying. -ar - as + at

Solve the problem. -In a certain location, the highest temperature recorded was $103^{\circ} \mathrm{F}$ . The lowest temperature recorded was 131 degrees less than the highest. What was the lowest temperature?

Graph the numbers on a number line. - $-11,-9,-7,-5$

Add. Do not use a number line except as a check. - $-2.6+(-7.3)$

Subtract. - $0.65-(-0.48)$

Solve the problem. -A population of a rural town was 12,000 . It decreased 430 each year for $6 \mathrm{yr}$ . What was the population of the town after $6 \mathrm{yr}$ ?

Whole Numbers

Fraction Notation

Decimal Notation

Percent Notation

Data, Graphs, and Statistics

Geometry

Solving Equations and Inequalities

Graphs of Linear Equations

Polynomials: Operations

Polynomials: Factoring

Rational Expressions and Equations

Systems of Equations

Radical Expressions and Equations

Quadratic Equations

Converting Units of Measurement

Filters

Exam 7: Introduction to Real Numbers and Algebraic Expressions

Subtract. - −18−15-\frac{1}{8}-\frac{1}{5}−81​−51​

Add. Do not use a number line except as a check. - −9.2+5.4-9.2+5.4−9.2+5.4

Evaluate. - 9mn\frac{9 m}{n}n9m​ , when m=12m=12m=12 and n=4n=4n=4

Subtract. - −2.2−0-2.2-0−2.2−0

List the terms of the expression. - 6−6a+8b6-6 a+8 b6−6a+8b

Simplify. - 2{[8(x−1)+5]−[2(4x−1)+5]}2\{[8(x-1)+5]-[2(4 x-1)+5]\}2{[8(x−1)+5]−[2(4x−1)+5]}

Divide. - 4.20.6\frac{4.2}{0.6}0.64.2​

Solve the problem. -In four rounds of a card game, you get scores of −10,1,−4-10,1,-4−10,1,−4 , and -7 . What is your final score?

Add. Do not use a number line except as a check. - −5+(−710)+310-5+\left(-\frac{7}{10}\right)+\frac{3}{10}−5+(−107​)+103​

Evaluate the expression for the given value of xxx . - −2x2,x=−6-2 x^{2}, x=-6−2x2,x=−6

Write an equivalent expression. Use a commutative law. - wxw xwx

Simplify. - 45xy36xy\frac{45 x y}{36 x y}36xy45xy​

Remove parentheses and simplify. - 6x−(4−4x)6 x-(4-4 x)6x−(4−4x)