Page 296 - Basic College Mathematics with Early Integers

Cumulative Review Chapters 1–3 Answers

Write each number in words.
1.

1. 126 2. 115
2.

3.
3. 27,034 4. 6573
4.

5. Add: 23 + 136 6. Add: 587 + 44
5.

6.
7. Subtract: 543 - 29. Check by adding. 8. Subtract: 995 - 62. Check by adding.
7.

9. Round 278,362 to the nearest thousand. 10. Round 1436 to the nearest ten. 8.

9.
11. One type of digital video disc (DVD) 12. On a trip across country, Daniel Daunis
can hold about 4800 megabytes (MB) of travels 435 miles per day. How many 10.
information. How many megabytes can total miles does he travel in 3 days?
12 DVDs hold?
11.

12.
13. Divide and check: 56,717 , 8 14. Divide and check: 4558 , 12

13.

14.
Write using exponential notation.
15.
#
# #
15. 7 7 7 16. 7 7
16.
# # # # # #
# # # # #
17. 3 3 3 3 17 17 17 18. 9 9 9 9 5 5
17.

19. Evaluate 21x - y2 for x = 8 and 20. Evaluate 8a + 31b - 52 for a = 5 and 18.
y = 4. b = 9.

19.

21. The world’s deepest cave is Krubera 22. The temperature on a cold day in
(or Voronja), in the country of Georgia, Minneapolis, MN, is 21° F below zero. 20.
located by the Black Sea in Asia. It has Represent this temperature using an
been explored to a depth of 6824 feet integer. 21.
below the surface of the Earth.
Represent this position using an
integer. 22.
273