Page 163 - Basic College Mathematics with Early Integers

Answers
Integrated Review Sections 2.1–2.4
1.
Integers
2.
Represent each quantity by an integer.

3. 1. The peak of Mount Everest in Asia is 2. The Mariana Trench in the Pacific
29,028 feet above sea level. (Source: Ocean is 35,840 feet below sea level.
U.S. Geological Survey) (Source:The World Almanac)
4.

5.
3. The deepest hole ever drilled in the 4. Graph the signed numbers on the given
Earth’s crust is in Russia and its depth number line. -4, 0, -1, 3
6. is over 7 miles below sea level. (Source:
Fantastic Book of Comparisons)
5 4 3 2 1 0 1 2 3 4 5
7. Surface of the earth

8.

9.
Over 7 miles
10.

11.
Insert 6 or 7 between each pair of numbers to make a true statement.
12. 5. 0 -3 6. -15 -5 7. -1 1 8. -2 -7

13.

Simplify.
14.
9. ƒ -1 ƒ 10. - ƒ -4 ƒ 11. ƒ -8 ƒ 12. -1-52
15.

16. Find the opposite of each number.

13. 6 14. -3 15. 89 16. 0
17.
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18.
Add or subtract as indicated.
19.
17. -7 + 12 18. -9 + 1-112 19. 25 + 1-352

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