Page 579 - Basic College Mathematics with Early Integers

Answers
Cumulative Review Chapters 1–7

1. Write 106,052,447 in words. 2. Write 276,004 in words.
1.

3. Find the perimeter of the polygon 4. Find the perimeter of the rectangle
2.
shown. shown.
3. 2 inches 3 inches 6 inches
1 inch
3 inches
4.
4 inches 3 inches
5.

6.
5. Subtract: 900 - 174. Check by adding. 6. Subtract: 17,801 - 8216. Check by
7. adding.

8.
7. Round 248,982 to the nearest hundred. 8. Round 844,497 to the nearest thousand.
9.

10.
9. Multiply: 25 * 8 10. Multiply: 395 * 74
11.

12.
11. Divide and check: 1872 , 9 12. Divide and check: 3956 , 46
13.

14. 13. Simplify: 2 4 - 3 , 3 14. Simplify: 8 4 + 9 , 3
#
#
15.

2
2
16. 15. Evaluate x + z - 3 for x = 5 and 16. Evaluate 2a + 5 - c for a = 2 and
z = 4. c = 3.
17. a.
b.
17. Insert 6 or 7 between each pair of 18. Insert 6 or 7 between each pair of
numbers to make a true statement. numbers to make a true statement.
c.
a. -7 7 a. -14 0
18. a. b. 0 -4 b. -1-72 -8
c. -9 -11
b.
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19.
19. Add using a number line: 5 + 1-22 20. Add using a number line: -3 + 1-42
20.

21.
Add.
22.
21. -5 + 1-102 22. 3 + 1-72
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