Question 1

Subtract.
-$\frac{5}{6}-\frac{1}{24}$

Accepted Answer

A)  $\frac{19}{24}$ 
B)  $\frac{1}{6}$ 
C)  $\frac{2}{9}$ 
D)  $\frac{7}{8}$ 
A)  $\frac{19}{24}$ 
B)  $\frac{1}{6}$ 
C)  $\frac{2}{9}$ 
D)  $\frac{7}{8}$

Question 2

Add. Do not use a number line except as a check.
-$6+(-61)$

Accepted Answer

A)  -67 
B)  55 
C)  -55 
D)  67 
A)  -67 
B)  55 
C)  -55 
D)  67

Question 3

Divide, if possible.
-$\frac{10}{-5}$

Accepted Answer

A)  -2 
B)  2 
C)  -1 
D)  -3 
A)  -2 
B)  2 
C)  -1 
D)  -3

Question 4

Substitute to find the value of the expression.
-Bill takes four times as long to do a job as Jose. Suppose $t$ represents the time it takes Bill to do the job. Then $\mathrm{t} / 4$ represents the time it takes Jose. How long does it take Jose if it takes Bill 89 minutes?

Accepted Answer

A)  $356.00 \mathrm{~min}$ 
B)  $93.00 \mathrm{~min}$ 
C)  $85.00 \mathrm{~min}$ 
D)  $22.25 \mathrm{~min}$ 
A)  $356.00 \mathrm{~min}$ 
B)  $93.00 \mathrm{~min}$ 
C)  $85.00 \mathrm{~min}$ 
D)  $22.25 \mathrm{~min}$

Question 5

Add. Do not use a number line except as a check.
-$-\frac{4}{6}+\frac{1}{3}$

Accepted Answer

A)  -1 
B)  $\frac{7}{6}$ 
C)  1 
D)  $-\frac{1}{3}$ 
A)  -1 
B)  $\frac{7}{6}$ 
C)  1 
D)  $-\frac{1}{3}$

Question 6

Solve the problem.
-A stockbroker sold 90 shares of stock for $\$ 18.02$ each. What was the total amount of the sale?

Accepted Answer

A)  $\$ 1621.70$ 
B)  $\$ 1621.90$ 
C)  $\$ 1621.91$ 
D)  $\$ 1621.80$ 
A)  $\$ 1621.70$ 
B)  $\$ 1621.90$ 
C)  $\$ 1621.91$ 
D)  $\$ 1621.80$

Question 7

Simplify.
-$21+(-17)(-19)-26$

Accepted Answer

A)  318 
B)  31 
C)  696 
D)  -266 
A)  318 
B)  31 
C)  696 
D)  -266

Question 8

Add. Do not use a number line except as a check.
-$-64+17$

Accepted Answer

A)  81 
B)  -47 
C)  47 
D)  -81 
A)  81 
B)  -47 
C)  47 
D)  -81

Question 9

Add. Do not use a number line except as a check.
-$8.1+(-3.9)$

Accepted Answer

A)  4.2 
B)  -12 
C)  12 
D)  8.1 
A)  4.2 
B)  -12 
C)  12 
D)  8.1

Question 10

Find the absolute value.
-| -5.884 |

Accepted Answer

A)  -5.884 
B)  -11.768 
C)  5.884 
D)  0 
A)  -5.884 
B)  -11.768 
C)  5.884 
D)  0

Question 11

Find the reciprocal, if it exists.
-$\frac{4 x}{5 y}$

Accepted Answer

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

Question 12

Add. Do not use a number line except as a check.
-$482+(-72)+70+(-481)+(-38)+259$

Accepted Answer

A)  -220 
B)  296 
C)  -1402 
D)  220 
A)  -220 
B)  296 
C)  -1402 
D)  220

Question 13

Add. Do not use a number line except as a check.
-$-8.9+(-7.5)$

Accepted Answer

A)  -16.4 
B)  16.4 
C)  1.4 
D)  -1.4 
A)  -16.4 
B)  16.4 
C)  1.4 
D)  -1.4

Question 14

Add. Do not use a number line except as a check.
-$-12+(-78)+27+(-58)$

Accepted Answer

A)  -97 
B)  -5 
C)  -175 
D)  -121 
A)  -97 
B)  -5 
C)  -175 
D)  -121

Question 15

Choose the expression that is equivalent to the following: $1\left(3 x^{3}\right)$

Accepted Answer

A)  1 
B)  $3 x^{4}$ 
C)  $3 x^{3}$ 
D)  $4 x^{3}$ 
A)  1 
B)  $3 x^{4}$ 
C)  $3 x^{3}$ 
D)  $4 x^{3}$

Question 16

Write an equivalent expression. Use an associative law.
-$r+(4+s)$

Accepted Answer

A)  $(4+s)+r$ 
B)  $(\mathrm{r}+4)+\mathrm{s}$ 
C)  $r(4+s)$ 
D)  $\mathrm{r}+(\mathrm{s}+4)$ 
A)  $(4+s)+r$ 
B)  $(\mathrm{r}+4)+\mathrm{s}$ 
C)  $r(4+s)$ 
D)  $\mathrm{r}+(\mathrm{s}+4)$

Question 17

Simplify.
-$-\frac{1}{12}+\frac{7}{9}-\left(-\frac{1}{3}\right)+\frac{1}{2}$

Accepted Answer

A)  $\frac{37}{36}$ 
B)  $\frac{55}{36}$ 
C)  $\frac{11}{6}$ 
D)  $\frac{31}{36}$ 
A)  $\frac{37}{36}$ 
B)  $\frac{55}{36}$ 
C)  $\frac{11}{6}$ 
D)  $\frac{31}{36}$

Question 18

Subtract.
-$\frac{7}{11}-\frac{14}{11}$

Accepted Answer

A)  $\frac{7}{11}$ 
B)  $-\frac{7}{11}$ 
C)  -7 
D)  $-\frac{7}{121}$ 
A)  $\frac{7}{11}$ 
B)  $-\frac{7}{11}$ 
C)  -7 
D)  $-\frac{7}{121}$

Question 19

Subtract.
-$-8.1-(-12.1)$

Accepted Answer

A)  20.2 
B)  -4 
C)  4 
D)  -20.2 
A)  20.2 
B)  -4 
C)  4 
D)  -20.2

Question 20

Rewrite the division as a multiplication.
-$-\frac{2}{9}$

Accepted Answer

A)  $-2 \cdot\left(\frac{1}{9}\right)$ or $2 \cdot\left(-\frac{1}{9}\right)$ 
B)  $-9 \cdot\left(\frac{1}{2}\right)$ or $9 \cdot\left(-\frac{1}{2}\right)$ 
C)  $-2 \cdot-9$ or $2 \cdot 9$ 
D)  $-2 \cdot 9$ or $2 \cdot-9$ 
A)  $-2 \cdot\left(\frac{1}{9}\right)$ or $2 \cdot\left(-\frac{1}{9}\right)$ 
B)  $-9 \cdot\left(\frac{1}{2}\right)$ or $9 \cdot\left(-\frac{1}{2}\right)$ 
C)  $-2 \cdot-9$ or $2 \cdot 9$ 
D)  $-2 \cdot 9$ or $2 \cdot-9$

Subtract. - $\frac{5}{6}-\frac{1}{24}$

Add. Do not use a number line except as a check. - $6+(-61)$

Divide, if possible. - $\frac{10}{-5}$

Substitute to find the value of the expression. -Bill takes four times as long to do a job as Jose. Suppose $t$ represents the time it takes Bill to do the job. Then $\mathrm{t} / 4$ represents the time it takes Jose. How long does it take Jose if it takes Bill 89 minutes?

Add. Do not use a number line except as a check. - $-\frac{4}{6}+\frac{1}{3}$

Solve the problem. -A stockbroker sold 90 shares of stock for $\$ 18.02$ each. What was the total amount of the sale?

Simplify. - $21+(-17)(-19)-26$

Add. Do not use a number line except as a check. - $-64+17$

Add. Do not use a number line except as a check. - $8.1+(-3.9)$

Find the absolute value. -| -5.884 |

Find the reciprocal, if it exists. - $\frac{4 x}{5 y}$

Add. Do not use a number line except as a check. - $482+(-72)+70+(-481)+(-38)+259$

Add. Do not use a number line except as a check. - $-8.9+(-7.5)$

Add. Do not use a number line except as a check. - $-12+(-78)+27+(-58)$

Choose the expression that is equivalent to the following: $1\left(3 x^{3}\right)$

Write an equivalent expression. Use an associative law. - $r+(4+s)$

Simplify. - $-\frac{1}{12}+\frac{7}{9}-\left(-\frac{1}{3}\right)+\frac{1}{2}$

Subtract. - $\frac{7}{11}-\frac{14}{11}$

Subtract. - $-8.1-(-12.1)$

Rewrite the division as a multiplication. - $-\frac{2}{9}$

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. - 56−124\frac{5}{6}-\frac{1}{24}65​−241​

Add. Do not use a number line except as a check. - 6+(−61)6+(-61)6+(−61)

Divide, if possible. - 10−5\frac{10}{-5}−510​

Substitute to find the value of the expression. -Bill takes four times as long to do a job as Jose. Suppose ttt represents the time it takes Bill to do the job. Then t/4\mathrm{t} / 4t/4 represents the time it takes Jose. How long does it take Jose if it takes Bill 89 minutes?

Add. Do not use a number line except as a check. - −46+13-\frac{4}{6}+\frac{1}{3}−64​+31​

Solve the problem. -A stockbroker sold 90 shares of stock for $18.02\$ 18.02$18.02 each. What was the total amount of the sale?

Simplify. - 21+(−17)(−19)−2621+(-17)(-19)-2621+(−17)(−19)−26

Add. Do not use a number line except as a check. - −64+17-64+17−64+17

Add. Do not use a number line except as a check. - 8.1+(−3.9)8.1+(-3.9)8.1+(−3.9)

Find the absolute value. -| -5.884 |

Find the reciprocal, if it exists. - 4x5y\frac{4 x}{5 y}5y4x​

Add. Do not use a number line except as a check. - 482+(−72)+70+(−481)+(−38)+259482+(-72)+70+(-481)+(-38)+259482+(−72)+70+(−481)+(−38)+259

Add. Do not use a number line except as a check. - −8.9+(−7.5)-8.9+(-7.5)−8.9+(−7.5)

Add. Do not use a number line except as a check. - −12+(−78)+27+(−58)-12+(-78)+27+(-58)−12+(−78)+27+(−58)

Choose the expression that is equivalent to the following: 1(3x3)1\left(3 x^{3}\right)1(3x3)

Write an equivalent expression. Use an associative law. - r+(4+s)r+(4+s)r+(4+s)

Simplify. - −112+79−(−13)+12-\frac{1}{12}+\frac{7}{9}-\left(-\frac{1}{3}\right)+\frac{1}{2}−121​+97​−(−31​)+21​

Subtract. - 711−1411\frac{7}{11}-\frac{14}{11}117​−1114​

Subtract. - −8.1−(−12.1)-8.1-(-12.1)−8.1−(−12.1)

Rewrite the division as a multiplication. - −29-\frac{2}{9}−92​

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

Subtract. - $\frac{5}{6}-\frac{1}{24}$

Add. Do not use a number line except as a check. - $6+(-61)$

Divide, if possible. - $\frac{10}{-5}$

Substitute to find the value of the expression. -Bill takes four times as long to do a job as Jose. Suppose $t$ represents the time it takes Bill to do the job. Then $\mathrm{t} / 4$ represents the time it takes Jose. How long does it take Jose if it takes Bill 89 minutes?

Add. Do not use a number line except as a check. - $-\frac{4}{6}+\frac{1}{3}$

Solve the problem. -A stockbroker sold 90 shares of stock for $\$ 18.02$ each. What was the total amount of the sale?

Simplify. - $21+(-17)(-19)-26$

Add. Do not use a number line except as a check. - $-64+17$

Add. Do not use a number line except as a check. - $8.1+(-3.9)$

Find the reciprocal, if it exists. - $\frac{4 x}{5 y}$

Add. Do not use a number line except as a check. - $482+(-72)+70+(-481)+(-38)+259$

Add. Do not use a number line except as a check. - $-8.9+(-7.5)$

Add. Do not use a number line except as a check. - $-12+(-78)+27+(-58)$

Choose the expression that is equivalent to the following: $1\left(3 x^{3}\right)$

Write an equivalent expression. Use an associative law. - $r+(4+s)$

Simplify. - $-\frac{1}{12}+\frac{7}{9}-\left(-\frac{1}{3}\right)+\frac{1}{2}$

Subtract. - $\frac{7}{11}-\frac{14}{11}$

Subtract. - $-8.1-(-12.1)$

Rewrite the division as a multiplication. - $-\frac{2}{9}$