1. NAME _____________________________
Topic Quiz: Adding Real Numbers
Find the sum.
1. Ϫ8 ϩ 21 2. Ϫ27 ϩ ͑Ϫ15͒
3. Ϫ16.4 ϩ 10.2 4. Ϫ11.6 ϩ ͑Ϫ1.3͒
5. In golf, par is the number of strokes expected to complete a hole. The table shows the daily scores of two
golfers. Which golfer had the lower score?
Shawn Day 1 Day 2 Day 3 Woody Day 1 Day 2 Day 3
Strokes above Ϫ3 Ϫ5 2 Strokes above Ϫ1 Ϫ2 Ϫ2
or below par or below par
So, had the lower score.
6. The table shows the daily change in the stock price of a company for one week. What was the net change
in the company’s stock price?
Day Mon. Tues. Wed. Thurs. Fri.
Stock price change, $ 1.75 Ϫ3.15 Ϫ0.57 0.36 2.25
The net change in the company’s stock price was dollars.
Topic Quiz: Subtracting Real Numbers
Evaluate the expression. Write your answer in simplest form.
2. Ϫ3 Ϫ ͑Ϫ 3 ͒
2
1. 13 Ϫ 58
© 2001 Meridian Creative Group, a Division of Larson Texts, Inc.
3. Ϫ35 Ϫ ͑Ϫ45͒ Ϫ 16 4. 68.7 Ϫ 27.3 Ϫ 21.2
5. The liquid range of a chemical element is the difference between the element’s boiling and melting points.
Which element – nitrogen, oxygen, or helium – has the greatest liquid range?
Element Boiling point, °C Melting Point, °C
Nitrogen Ϫ195.8 Ϫ209.86
Oxygen Ϫ182.96 Ϫ218.4
Helium Ϫ268.93 Ϫ272.2
has the greatest liquid range.
6. The elevation range of a continent is the difference between the continent’s highest and lowest elevations.
Which continent — North America or South America — has the greater elevation range?
Continent Highest Elevation, ft Lowest Elevation, ft
North America 20,320 Ϫ282
South America 22,834 Ϫ131
has the greater elevation range.
24-02/24-03 Real Numbers 8

2. NAME _____________________________
Topic Quiz: Adding Real Numbers
Find the sum.
1. Ϫ8 ϩ 21 13 2. Ϫ27 ϩ ͑Ϫ15͒ ؊42
3. Ϫ16.4 ϩ 10.2 ؊6.2 4. Ϫ11.6 ϩ ͑Ϫ1.3͒ ؊12.9
5. In golf, par is the number of strokes expected to complete a hole. The table shows the daily scores of two
golfers. Which golfer had the lower score?
Shawn Day 1 Day 2 Day 3 Woody Day 1 Day 2 Day 3
Strokes above Ϫ3 Ϫ5 2 Strokes above Ϫ1 Ϫ2 Ϫ2
or below par or below par
So, Shawn had the lower score.
6. The table shows the daily change in the stock price of a company for one week. What was the net change
in the company’s stock price?
Day Mon. Tues. Wed. Thurs. Fri.
Stock price change, $ 1.75 Ϫ3.15 Ϫ0.57 0.36 2.25
The net change in the company’s stock price was 0.64 dollars.
Topic Quiz: Subtracting Real Numbers
Evaluate the expression. Write your answer in simplest form.
1
1. 13 Ϫ 58 ؊45 2. Ϫ3 Ϫ ͑Ϫ 3 ͒
2 ؊2 3
؊6 20.2
© 2001 Meridian Creative Group, a Division of Larson Texts, Inc.
3. Ϫ35 Ϫ ͑Ϫ45͒ Ϫ 16 4. 68.7 Ϫ 27.3 Ϫ 21.2
5. The liquid range of a chemical element is the difference between the element’s boiling and melting points.
Which element – nitrogen, oxygen, or helium – has the greatest liquid range?
Element Boiling point, °C Melting Point, °C
Nitrogen Ϫ195.8 Ϫ209.86
Oxygen Ϫ182.96 Ϫ218.4
Helium Ϫ268.93 Ϫ272.2
Oxygen has the greatest liquid range.
6. The elevation range of a continent is the difference between the continent’s highest and lowest elevations.
Which continent — North America or South America — has the greater elevation range?
Continent Highest Elevation, ft Lowest Elevation, ft
North America 20,320 Ϫ282
South America 22,834 Ϫ131
South America has the greater elevation range.
8A Real Numbers 24-02A/24-03A