Question 1

Subtract: -7 - (-21)

Accepted Answer

A)  -15 
B)  28 
C)  -28 
D)  14 
E)  -29 
A)  -15 
B)  28 
C)  -28 
D)  14 
E)  -29

Question 2

A patient's temperature was 102.2°F at noon. Changes recorded during the afternoon temperature checks were +0.9° at 2 P.M. and -2.2° at 4 P.M. What was the patient's temperature at 4 P.M.?

Accepted Answer

A)  101.8°F 
B)  98.7°F 
C)  100°F 
D)  100.9°F 
E)  103.1°F 
A)  101.8°F 
B)  98.7°F 
C)  100°F 
D)  100.9°F 
E)  103.1°F

Question 3

Simplify the following expression. $- \frac { 8 } { 21 } \div \frac { 3 } { 5 }$

Accepted Answer

A)  $- \frac { 40 } { 63 }$ 
B)  $\frac { 63 } { 190 }$ 
C)  $\frac { 40 } { 63 }$ 
D)  $- \frac { 40 } { 81 }$ 
E)  $\frac { 40 } { 81 }$ 
A)  $- \frac { 40 } { 63 }$ 
B)  $\frac { 63 } { 190 }$ 
C)  $\frac { 40 } { 63 }$ 
D)  $- \frac { 40 } { 81 }$ 
E)  $\frac { 40 } { 81 }$

Question 4

Write the number $5.5 \times 10 ^ { 12 }$ in decimal notation.

Accepted Answer

A)  5,500,000,000,000 
B)  5,500,000 
C)  5,500,000,000 
D)  5,500,000,000,000,000 
E)  5,500,000,000,000,000,000 
A)  5,500,000,000,000 
B)  5,500,000 
C)  5,500,000,000 
D)  5,500,000,000,000,000 
E)  5,500,000,000,000,000,000

Question 5

The diameter of an dust particle is 0.000000022 meters. Write this number in scientific notation.

Accepted Answer

A)  $2.2 \times 10 ^ { - 8 }$ meters 
B)  $2.2 \times 10 ^ { - 6 }$ meters 
C)  $2.2 \times 10 ^ { - 9 }$ meters 
D)  $22 \times 10 ^ { - 6 }$ meters 
E)  $0.22 \times 10 ^ { - 8 }$ meters 
A)  $2.2 \times 10 ^ { - 8 }$ meters 
B)  $2.2 \times 10 ^ { - 6 }$ meters 
C)  $2.2 \times 10 ^ { - 9 }$ meters 
D)  $22 \times 10 ^ { - 6 }$ meters 
E)  $0.22 \times 10 ^ { - 8 }$ meters

Question 6

Subtract -26 from -2.

Accepted Answer

A)  28 
B)  -28 
C)  24 
D)  -24 
E)  -25 
A)  28 
B)  -28 
C)  24 
D)  -24 
E)  -25

Question 7

The daily low temperature readings for a 3-day period were as follows: $- 3 ^ { \circ } \mathrm { F } , 12 ^ { \circ } \mathrm { F } , - 3 ^ { \circ } \mathrm { F }$ . Find the average low temperature for the 3-day period.

Accepted Answer

A)  4°F 
B)  3°F 
C)  2°F 
D)  1°F 
E)  0°F 
A)  4°F 
B)  3°F 
C)  2°F 
D)  1°F 
E)  0°F

Question 8

A patient begins a new diet plan and each month records any change in weight using integers. Calculate the total change in the patient's weight using these recorded amounts: -7 lb, -4 lb, 6 lb, -6 lb, and -5 lb.

Accepted Answer

A)  15 lb 
B)  -16 lb 
C)  -17 lb 
D)  17 lb 
E)  16 lb 
A)  15 lb 
B)  -16 lb 
C)  -17 lb 
D)  17 lb 
E)  16 lb

Question 9

Simplify the following expression. $- \frac { 1 } { 2 } + \frac { 2 } { 3 }$

Accepted Answer

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

Question 10

Write the number $4.3 \times 10 ^ { - 5 }$ in decimal notation.

Accepted Answer

A)  0.043 
B)  0.000004 
C)  0.000043 
D)  0.00043 
E)  0.0043 
A)  0.043 
B)  0.000004 
C)  0.000043 
D)  0.00043 
E)  0.0043

Question 11

Multiply: 5(4)(-4)(-5)

Accepted Answer

A)  80 
B)  11 
C)  -80 
D)  -400 
E)  400 
A)  80 
B)  11 
C)  -80 
D)  -400 
E)  400

Question 12

Divide: (-16) $\div$ (-4)

Accepted Answer

A)  -20 
B)  4 
C)  20 
D)  12 
E)  -12 
A)  -20 
B)  4 
C)  20 
D)  12 
E)  -12

Question 13

The chart below shows the closing price of a share of stock on September 15, 2003, for each of five companies. Also shown is the change in price from the previous day. To find the closing price on the previous day, subtract the change in price from the closing price on September 15. Find the closing price on the previous day for Del Monte Foods. Company
Closing Price
Change in Price
Del Monte Foods Co.
8)77
-0)06
General Mills, Inc.
47)10
-0)11
Hershey Foods, Inc.
72)57
+0)11
Hormel Foods Corp.
22)42
-0)08
Sara Lee Corp.
19)18
-0)21

Accepted Answer

A)  $8.83 
B)  $8.43 
C)  $9.63 
D)  $8.73 
E)  $8.03 
A)  $8.83 
B)  $8.43 
C)  $9.63 
D)  $8.73 
E)  $8.03

Question 14

Simplify the following. $7 - 25 \div 5$

Accepted Answer

A)  2 
B)  5 
C)  12 
D)  -18 
E)  -2 
A)  2 
B)  5 
C)  12 
D)  -18 
E)  -2

Question 15

Place the correct symbol, , between the two numbers. -1 ____ -3

Accepted Answer

A)   
A)

Question 16

Simplify: $( - 1.8 ) ( - 8.29 )$

Accepted Answer

A)  14.922 
B)  0.014922 
C)  14,922 
D)  -0.014922 
E)  -14.922 
A)  14.922 
B)  0.014922 
C)  14,922 
D)  -0.014922 
E)  -14.922

Question 17

Subtract: 8 - (-13) - 4

Accepted Answer

A)  25 
B)  -9 
C)  -25 
D)  17 
E)  9 
A)  25 
B)  -9 
C)  -25 
D)  17 
E)  9

Question 18

Simplify the following expression. $\left( \frac { 5 } { 11 } \right) \left( - \frac { 5 } { 8 } \right)$

Accepted Answer

A)  $\frac { 25 } { 88 }$ 
B)  $\frac { 25 } { 51 }$ 
C)  $- \frac { 25 } { 88 }$ 
D)  $- \frac { 25 } { 76 }$ 
E)  $\frac { 25 } { 76 }$ 
A)  $\frac { 25 } { 88 }$ 
B)  $\frac { 25 } { 51 }$ 
C)  $- \frac { 25 } { 88 }$ 
D)  $- \frac { 25 } { 76 }$ 
E)  $\frac { 25 } { 76 }$

Question 19

Find the opposite number of -2.

Accepted Answer

A)  $- 2$ 
B)  $2$ 
C)  - $\frac { 1 } { 2 }$ 
D)  $\frac { 1 } { 2 }$ 
E)  $0$ 
A)  $- 2$ 
B)  $2$ 
C)  - $\frac { 1 } { 2 }$ 
D)  $\frac { 1 } { 2 }$ 
E)  $0$

Question 20

Simplify the following expression. $- \frac { 2 } { 3 } - \frac { 1 } { 16 }$

Accepted Answer

A)  $\frac { 35 } { 48 }$ 
B)  $\frac { 1 } { 48 }$ 
C)  $- \frac { 35 } { 48 }$ 
D)  $1$ 
E)  $- \frac { 1 } { 48 }$ 
A)  $\frac { 35 } { 48 }$ 
B)  $\frac { 1 } { 48 }$ 
C)  $- \frac { 35 } { 48 }$ 
D)  $1$ 
E)  $- \frac { 1 } { 48 }$

Subtract: -7 - (-21)

A patient's temperature was 102.2°F at noon. Changes recorded during the afternoon temperature checks were +0.9° at 2 P.M. and -2.2° at 4 P.M. What was the patient's temperature at 4 P.M.?

Simplify the following expression. $- \frac { 8 } { 21 } \div \frac { 3 } { 5 }$

Write the number $5.5 \times 10 ^ { 12 }$ in decimal notation.

The diameter of an dust particle is 0.000000022 meters. Write this number in scientific notation.

Subtract -26 from -2.

The daily low temperature readings for a 3-day period were as follows: $- 3 ^ { \circ } \mathrm { F } , 12 ^ { \circ } \mathrm { F } , - 3 ^ { \circ } \mathrm { F }$ . Find the average low temperature for the 3-day period.

A patient begins a new diet plan and each month records any change in weight using integers. Calculate the total change in the patient's weight using these recorded amounts: -7 lb, -4 lb, 6 lb, -6 lb, and -5 lb.

Simplify the following expression. $- \frac { 1 } { 2 } + \frac { 2 } { 3 }$

Write the number $4.3 \times 10 ^ { - 5 }$ in decimal notation.

Multiply: 5(4)(-4)(-5)

Divide: (-16) $\div$ (-4)

Simplify the following. $7 - 25 \div 5$

Place the correct symbol, < or >, between the two numbers. -1 ____ -3

Simplify: $( - 1.8 ) ( - 8.29 )$

Subtract: 8 - (-13) - 4

Simplify the following expression. $\left( \frac { 5 } { 11 } \right) \left( - \frac { 5 } { 8 } \right)$

Find the opposite number of -2.

Simplify the following expression. $- \frac { 2 } { 3 } - \frac { 1 } { 16 }$

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Exam 11: Introduction to Algebra

Subtract: -7 - (-21)

A patient's temperature was 102.2°F at noon. Changes recorded during the afternoon temperature checks were +0.9° at 2 P.M. and -2.2° at 4 P.M. What was the patient's temperature at 4 P.M.?

Simplify the following expression. −821÷35- \frac { 8 } { 21 } \div \frac { 3 } { 5 }−218​÷53​

Write the number 5.5×10125.5 \times 10 ^ { 12 }5.5×1012 in decimal notation.

The diameter of an dust particle is 0.000000022 meters. Write this number in scientific notation.

Subtract -26 from -2.

The daily low temperature readings for a 3-day period were as follows: −3∘F,12∘F,−3∘F- 3 ^ { \circ } \mathrm { F } , 12 ^ { \circ } \mathrm { F } , - 3 ^ { \circ } \mathrm { F }−3∘F,12∘F,−3∘F . Find the average low temperature for the 3-day period.

A patient begins a new diet plan and each month records any change in weight using integers. Calculate the total change in the patient's weight using these recorded amounts: -7 lb, -4 lb, 6 lb, -6 lb, and -5 lb.

Simplify the following expression. −12+23- \frac { 1 } { 2 } + \frac { 2 } { 3 }−21​+32​

Write the number 4.3×10−54.3 \times 10 ^ { - 5 }4.3×10−5 in decimal notation.

Multiply: 5(4)(-4)(-5)

Divide: (-16) ÷\div÷ (-4)

Simplify the following. 7−25÷57 - 25 \div 57−25÷5

Place the correct symbol, < or >, between the two numbers. -1 ____ -3

Simplify: (−1.8)(−8.29)( - 1.8 ) ( - 8.29 )(−1.8)(−8.29)

Subtract: 8 - (-13) - 4

Simplify the following expression. (511)(−58)\left( \frac { 5 } { 11 } \right) \left( - \frac { 5 } { 8 } \right)(115​)(−85​)

Find the opposite number of -2.

Simplify the following expression. −23−116- \frac { 2 } { 3 } - \frac { 1 } { 16 }−32​−161​

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Simplify the following expression. $- \frac { 8 } { 21 } \div \frac { 3 } { 5 }$

Write the number $5.5 \times 10 ^ { 12 }$ in decimal notation.

The daily low temperature readings for a 3-day period were as follows: $- 3 ^ { \circ } \mathrm { F } , 12 ^ { \circ } \mathrm { F } , - 3 ^ { \circ } \mathrm { F }$ . Find the average low temperature for the 3-day period.

Simplify the following expression. $- \frac { 1 } { 2 } + \frac { 2 } { 3 }$

Write the number $4.3 \times 10 ^ { - 5 }$ in decimal notation.

Divide: (-16) $\div$ (-4)

Simplify the following. $7 - 25 \div 5$

Simplify: $( - 1.8 ) ( - 8.29 )$

Simplify the following expression. $\left( \frac { 5 } { 11 } \right) \left( - \frac { 5 } { 8 } \right)$

Simplify the following expression. $- \frac { 2 } { 3 } - \frac { 1 } { 16 }$