Page 190 - Basic College Mathematics with Early Integers

Cumulative Review Chapters 1–2 Answers

Find the place value of the digit 3 in each whole number. 1.
2.
1. 396,418 2. 4308 3. 93,192
3.
4. 693,298 5. 534,275,866 6. 267,301,818 4.

5.
7. Insert 6 or 7 to make 8. Insert 6 or 7 to make a 9. Add:
a true statement. true statement 13 + 2 + 7 + 8 + 9 6.
a. -7 7 a. 12 4
7. a.
b. 0 -4 b. 13 31
b.
c. -9 -11 c. 82 79
c.
8. a.
10. Add: 11 + 3 + 9 + 16 11. Subtract: 7826 - 505 12. Subtract: 3285 - 272
Check by adding. Check by adding. b.
c.
13. The radius of Jupiter is 43,441 miles. 14. C.J. Dufour wants to buy a digital 9.
The radius of Saturn is 7257 miles less camera. She has $762 in her savings 10.
than the radius of Jupiter. Find the account. If the camera costs $237,
radius of Saturn. (Source: National how much money will she have in her 11.
Space Science Data Center) account after buying the camera? 12.

13.
15. Round 568 to the nearest ten. 16. Round 568 to the nearest hundred.
14.
15.
17. Round each number to the nearest 18. Round each number to the nearest
hundred to find an estimated difference. thousand to find an estimated 16.
4725 difference. 17.
-2879 8394 18.
-2913
19. a.
b.
19. Rewrite each using the distributive 20. Rewrite each using the distributive
property. property. c.
a. 3(4 + 5) a. 5(2 + 12) 20. a.
b. 10(6 + 8) b. 9(3 + 6)
b.
c. 2(7 + 3) c. 4(8 + 1)
c.

21. Multiply: 631 * 125 22. Multiply: 299 * 104 21.
22.

23. Find each quotient. Check by 24. Find each quotient. Check by 23. a.
multiplying. multiplying. b.
a. 42 , 7 35
a. c.
64 5
b. 24. a.
8 b. 64 , 8
c. 321 c. 448 b.
c.
167