Question 1

Evaluate $-(-x)$ for the given value of $x$.
-$x=1.53$

Accepted Answer

A)  1.53 
B)  $\frac{153}{10}$ 
C)  -1.53 
D)  153 
A)  1.53 
B)  $\frac{153}{10}$ 
C)  -1.53 
D)  153

Question 2

Multiply.
-$2.7 \cdot(-6.32)$

Accepted Answer

A)  9.02 
B)  -3.62 
C)  9.12 
D)  -17.064 
A)  9.02 
B)  -3.62 
C)  9.12 
D)  -17.064

Question 3

Solve the problem.
-Wayne has $\$ 13.37$ in his wallet. Janice has a debt note for $\$ 11.97$ in her wallet. Find the difference between these amounts.

Accepted Answer

A)  $-\$ 1.40$ 
B)  $-\$ 25.34$ 
C)  $\$ 1.40$ 
D)  $\$ 25.34$ 
A)  $-\$ 1.40$ 
B)  $-\$ 25.34$ 
C)  $\$ 1.40$ 
D)  $\$ 25.34$

Question 4

Insert  to write a true statement.
-4____0

Accepted Answer

A) $ 40$ 
A) $ 40$

Question 5

Factor. Check by multiplying.
-$7 x-21 y$

Accepted Answer

A)  $3(7 x-7 y)$ 
B)  $7(x-y)$ 
C)  $7(x-21 y)$ 
D)  $7(x-3 y)$ 
A)  $3(7 x-7 y)$ 
B)  $7(x-y)$ 
C)  $7(x-21 y)$ 
D)  $7(x-3 y)$

Question 6

Find the absolute value.
-$|-20.6|$

Accepted Answer

A)  0 
B)  41.2 
C)  20.6 
D)  -20.6 
A)  0 
B)  41.2 
C)  20.6 
D)  -20.6

Question 7

Simplify.
-$\frac{5 x y}{14 x y}$

Accepted Answer

A)  $\frac{y}{14 y}$ 
B)  $\frac{5 x}{14 x}$ 
C)  $\frac{5}{14}$ 
D)  $\frac{1}{14}$ 
A)  $\frac{y}{14 y}$ 
B)  $\frac{5 x}{14 x}$ 
C)  $\frac{5}{14}$ 
D)  $\frac{1}{14}$

Question 8

Subtract.
-$\frac{8}{2}-\frac{8}{2}$

Accepted Answer

A)  undefined 
B)  0 
C)  $-\frac{24}{2}$ 
D)  $\frac{24}{2}$ 
A)  undefined 
B)  0 
C)  $-\frac{24}{2}$ 
D)  $\frac{24}{2}$

Question 9

Simplify.
-$\frac{3 \cdot(5+7)+3 \cdot 3}{3 \cdot(4-1)}$

Accepted Answer

A)  5 
B)  $4 \frac{1}{11}$ 
C)  $6 \frac{9}{11}$ 
D)  2 
A)  5 
B)  $4 \frac{1}{11}$ 
C)  $6 \frac{9}{11}$ 
D)  2

Question 10

Add. Do not use a number line except as a check.
-$3+(-5)$

Accepted Answer

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

Question 11

Multiply.
-$-3 \cdot 11$

Accepted Answer

A)  -44 
B)  -30 
C)  -33 
D)  30 
A)  -44 
B)  -30 
C)  -33 
D)  30

Question 12

Multiply.
-$\left(\frac{5}{2}\right)\left(\frac{7}{2}\right)$

Accepted Answer

A)  $\frac{35}{4}$ 
B)  $\frac{5}{4}$ 
C)  $\frac{7}{5}$ 
D)  3 
A)  $\frac{35}{4}$ 
B)  $\frac{5}{4}$ 
C)  $\frac{7}{5}$ 
D)  3

Question 13

Insert  to write a true statement.
-9.06____-9.06

Accepted Answer

A)  $9.06-9.06$ 
A)  $9.06-9.06$

Question 14

Subtract.
-$-1878-(-502)$

Accepted Answer

A)  1376 
B)  -1376 
C)  -2380 
D)  2380 
A)  1376 
B)  -1376 
C)  -2380 
D)  2380

Question 15

Find the reciprocal, if it exists.
--7

Accepted Answer

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

Question 16

Subtract.
-$-1-\left(\frac{7}{6}\right)$

Accepted Answer

A)  13 
B) $-\frac{13}{6}$ 
C) $-\frac{6}{13}$ 
D) $-\frac{1}{36}$ 
A)  13 
B) $-\frac{13}{6}$ 
C) $-\frac{6}{13}$ 
D) $-\frac{1}{36}$

Question 17

Write the word or phrase that best completes each statement or answers the question.
-Is this statement true or false? Why?
$(5-5)-5=5-(5-5)$

Accepted Answer

A) True 
 B)False

Question 18

Simplify.
-$13+(-15)-19$

Accepted Answer

A)  -21 
B)  47 
C)  17 
D)  21 
A)  -21 
B)  47 
C)  17 
D)  21

Question 19

Divide.
-$-1 \div 0.02$

Accepted Answer

A)  -50 
B)  $\frac{1}{50}$ 
C)  -0.98 
D)  -9.8 
A)  -50 
B)  $\frac{1}{50}$ 
C)  -0.98 
D)  -9.8

Question 20

Evaluate $-(-x)$ for the given value of $x$.
-$\mathrm{x}=-70$

Accepted Answer

A)  0 
B)  $-\frac{1}{70}$ 
C)  70 
D)  -70 
A)  0 
B)  $-\frac{1}{70}$ 
C)  70 
D)  -70

Evaluate $-(-x)$ for the given value of $x$ . - $x=1.53$

Multiply. - $2.7 \cdot(-6.32)$

Solve the problem. -Wayne has $\$ 13.37$ in his wallet. Janice has a debt note for $\$ 11.97$ in her wallet. Find the difference between these amounts.

Insert $<$ or $>$ to write a true statement. -4____0

Factor. Check by multiplying. - $7 x-21 y$

Find the absolute value. - $|-20.6|$

Simplify. - $\frac{5 x y}{14 x y}$

Subtract. - $\frac{8}{2}-\frac{8}{2}$

Simplify. - $\frac{3 \cdot(5+7)+3 \cdot 3}{3 \cdot(4-1)}$

Add. Do not use a number line except as a check. - $3+(-5)$

Multiply. - $-3 \cdot 11$

Multiply. - $\left(\frac{5}{2}\right)\left(\frac{7}{2}\right)$

Insert $<$ or $>$ to write a true statement. -9.06____-9.06

Subtract. - $-1878-(-502)$

Find the reciprocal, if it exists. --7

Subtract. - $-1-\left(\frac{7}{6}\right)$

Write the word or phrase that best completes each statement or answers the question. -Is this statement true or false? Why? $(5-5)-5=5-(5-5)$

Simplify. - $13+(-15)-19$

Divide. - $-1 \div 0.02$

Evaluate $-(-x)$ for the given value of $x$ . - $\mathrm{x}=-70$

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

Evaluate −(−x)-(-x)−(−x) for the given value of xxx . - x=1.53x=1.53x=1.53

Multiply. - 2.7⋅(−6.32)2.7 \cdot(-6.32)2.7⋅(−6.32)

Solve the problem. -Wayne has $13.37\$ 13.37$13.37 in his wallet. Janice has a debt note for $11.97\$ 11.97$11.97 in her wallet. Find the difference between these amounts.

Insert <<< or >>> to write a true statement. -4____0

Factor. Check by multiplying. - 7x−21y7 x-21 y7x−21y

Find the absolute value. - ∣−20.6∣|-20.6|∣−20.6∣

Simplify. - 5xy14xy\frac{5 x y}{14 x y}14xy5xy​

Subtract. - 82−82\frac{8}{2}-\frac{8}{2}28​−28​

Simplify. - 3⋅(5+7)+3⋅33⋅(4−1)\frac{3 \cdot(5+7)+3 \cdot 3}{3 \cdot(4-1)}3⋅(4−1)3⋅(5+7)+3⋅3​

Add. Do not use a number line except as a check. - 3+(−5)3+(-5)3+(−5)

Multiply. - −3⋅11-3 \cdot 11−3⋅11

Multiply. - (52)(72)\left(\frac{5}{2}\right)\left(\frac{7}{2}\right)(25​)(27​)

Insert <<< or >>> to write a true statement. -9.06____-9.06

Subtract. - −1878−(−502)-1878-(-502)−1878−(−502)