Question 1

Solve.
-The value of a stock dropped by $\frac{1}{2}$ of a dollar and then rose by $\frac{1}{3}$ of a dollar. What was the overall change in value?

Accepted Answer

A)  $\frac{1}{6}$ 
B)  0 
C)  $-\frac{1}{3}$ 
D)  $-\frac{1}{6}$ 
A)  $\frac{1}{6}$ 
B)  0 
C)  $-\frac{1}{3}$ 
D)  $-\frac{1}{6}$

Question 2

Determine the sign and the absolute value of the number.
--11

Accepted Answer

A)  Sign: +; absolute value: 11 
B)  Sign: +; absolute value: -11 
C)  Sign: -; absolute value: -11 
D)  Sign: -; absolute value: 11 
A)  Sign: +; absolute value: 11 
B)  Sign: +; absolute value: -11 
C)  Sign: -; absolute value: -11 
D)  Sign: -; absolute value: 11

Question 3

Add the numbers using the number line.
-$2+(-4)$

Accepted Answer

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

Question 4

Solve the problem.
-Will you weigh more if you lose 4 pounds or lose 3 pounds?

Accepted Answer

A)  4 pounds 
B)  3 pounds 
A)  4 pounds 
B)  3 pounds

Question 5

Solve the problem.
-Today you owe $\$ 360$. Last week, you owed $\$ 270$. Were you better off financially last week, or are you better off today?

Accepted Answer

A)  Better off last week 
B)  Better off today 
A)  Better off last week 
B)  Better off today

Question 6

Simplify.
-$[22+(-4)] \div(-3)$

Accepted Answer

A)  -6 
B)  15 
C)  6 
D)  $\frac{70}{3}$ 
A)  -6 
B)  15 
C)  6 
D)  $\frac{70}{3}$

Question 7

Find the opposite of the number.
--11

Accepted Answer

A)  11 
B)  0 
C)  -11 
D)  $-\frac{1}{11}$ 
A)  11 
B)  0 
C)  -11 
D)  $-\frac{1}{11}$

Question 8

Find the absolute value.
-$|-17|$

Accepted Answer

A)  -17 
B)  17 
C)  34 
D)  0 
A)  -17 
B)  17 
C)  34 
D)  0

Question 9

Add the numbers using the number line.
-$98+(-96)$

Accepted Answer

A)  2 
B)  194 
C)  -2 
D)  -194 
A)  2 
B)  194 
C)  -2 
D)  -194

Question 10

Find the sum.
-$3+(-2)$

Accepted Answer

A)  5 
B)  1 
C)  -1 
D)  -5 
A)  5 
B)  1 
C)  -1 
D)  -5

Question 11

Evaluate.
-$-3^{2}$

Accepted Answer

A)  9 
B)  -6 
C)  27 
D)  -9 
A)  9 
B)  -6 
C)  27 
D)  -9

Question 12

Multiply.
-$(-1.3)(-14.6)$

Accepted Answer

A)  -15.9 
B)  18.98 
C)  15.9 
D)  -13.3 
A)  -15.9 
B)  18.98 
C)  15.9 
D)  -13.3

Question 13

Evaluate.
-$-0.3 \times(-0.3)$

Accepted Answer

A)  -0.6 
B)  0 
C)  -0.5 
D)  0.09 
A)  -0.6 
B)  0 
C)  -0.5 
D)  0.09

Question 14

Solve.
-The bar graph shows the percent change in stock over the past month for five different companies. Rank these companies in order from biggest loss to biggest gain in their stock prices.

Accepted Answer

A)  Company E, Company A, Company C, Company D, Company B 
B)  Company E, Company A, Company C, Company B, Company D 
C)  Company C, Company A, Company E, Company B, Company D 
D)  Company C, Company A, Company E, Company D, Company B 
A)  Company E, Company A, Company C, Company D, Company B 
B)  Company E, Company A, Company C, Company B, Company D 
C)  Company C, Company A, Company E, Company B, Company D 
D)  Company C, Company A, Company E, Company D, Company B

Question 15

Insert parentheses, if needed, to make the expression on the left equal to the number on the right.
-$-10 \div 2-3+(-6)(-3)+5=-2$

Accepted Answer

A)  $-10 \div(2-3)+(-6)(-3)+5=-2$ 
B)  $-10 \div 2-3+(-6)(-3+5)=-2$ 
C)  $(-10 \div 2)-3+(-6)(-3)+5=-2$ 
D)  $-10 \div(2-3)+(-6)(-3+5)=-2$ 
A)  $-10 \div(2-3)+(-6)(-3)+5=-2$ 
B)  $-10 \div 2-3+(-6)(-3+5)=-2$ 
C)  $(-10 \div 2)-3+(-6)(-3)+5=-2$ 
D)  $-10 \div(2-3)+(-6)(-3+5)=-2$

Question 16

Give a written response.
-You are given information about three numbers, which you are to arrange from smallest to largest.
Number A: sign is negative; Absolute value is: 1.2
Number B: sign is negative ; Absolute value is: 2.3
Number C: sign is negative; Absolute value is: 1.7
What will the order be? Explain.

Accepted Answer

Number B, Number C ,

Question 17

Subtract.
-$9-(-23)$

Accepted Answer

A)  -14 
B)  14 
C)  -32 
D)  32 
A)  -14 
B)  14 
C)  -32 
D)  32

Question 18

Solve the problem.
-Will you be on a higher floor if you take the elevator down 12 floors or down 17 floors?

Accepted Answer

A)  Down 12 floors 
B)  Down 17 floors 
A)  Down 12 floors 
B)  Down 17 floors

Question 19

Add the numbers using the number line.
-$-8+0$

Accepted Answer

A)  -80 
B)  0 
C)  -8 
D)  8 
A)  -80 
B)  0 
C)  -8 
D)  8

Question 20

Solve the problem.
-During a period of much rain, the water level in a river rose 4 inches each day for 4 straight days. How much higher was the river at the end of this period?

Accepted Answer

A)  14 inches 
B)  -16 inches 
C)  -14 inches 
D)  16 inches 
A)  14 inches 
B)  -16 inches 
C)  -14 inches 
D)  16 inches

Solve. -The value of a stock dropped by $\frac{1}{2}$ of a dollar and then rose by $\frac{1}{3}$ of a dollar. What was the overall change in value?

Determine the sign and the absolute value of the number. --11

Add the numbers using the number line. - $2+(-4)$

Solve the problem. -Will you weigh more if you lose 4 pounds or lose 3 pounds?

Solve the problem. -Today you owe $\$ 360$ . Last week, you owed $\$ 270$ . Were you better off financially last week, or are you better off today?

Simplify. - $[22+(-4)] \div(-3)$

Find the opposite of the number. --11

Find the absolute value. - $|-17|$

Add the numbers using the number line. - $98+(-96)$

Find the sum. - $3+(-2)$

Evaluate. - $-3^{2}$

Multiply. - $(-1.3)(-14.6)$

Evaluate. - $-0.3 \times(-0.3)$

Solve. -The bar graph shows the percent change in stock over the past month for five different companies. Rank these companies in order from biggest loss to biggest gain in their stock prices.

Insert parentheses, if needed, to make the expression on the left equal to the number on the right. - $-10 \div 2-3+(-6)(-3)+5=-2$

Subtract. - $9-(-23)$

Solve the problem. -Will you be on a higher floor if you take the elevator down 12 floors or down 17 floors?

Add the numbers using the number line. - $-8+0$

Solve the problem. -During a period of much rain, the water level in a river rose 4 inches each day for 4 straight days. How much higher was the river at the end of this period?

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Exam 7: Signed Numbers

Solve. -The value of a stock dropped by 12\frac{1}{2}21​ of a dollar and then rose by 13\frac{1}{3}31​ of a dollar. What was the overall change in value?