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# Expanded and scientific notation

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1. In the number 351,472, which digit tells the number of thousands?
____a. 5
____b. 4
____c. 3
_x__d. 1

2. Write expanded notation for 7205.
____a. 7 thousands + 2 hundreds + 5 tens
__x_b. 7 thousands + 2 hundreds + 5 ones
____c. 7 thousands + 2 tens + 5 ones
____d. 2 thousands + 7 hundreds + 5 ones

+32, 751
________

____a. 61,256
_x__b. 60,255
____c. 59,256
____d. 59,255

4. Subtract: 7021
- 3567
______

_x__a. 3454
____b. 3544
____c. 4563
____d. 4589

5. Round 62, 598 to the nearest hundred.
____a. 63,000
_x__b. 62,600
____c. 62,500
____d. 62,000

6. Estimate the difference by rounding to the nearest hundred: 6238
_ 4197
______
__x_a. 2000
____b. 2040
____c. 2050
____d. 2100

7. Which of the following is true?
____a. 3<2
____b. 11>9
__x_c. 4>12
____d. 17<15

8. Multiply: 46
x85
____
____a. 4500
____b. 4030
_x__c. 3910
____d. 3840

9. Divide: 62/19,053
__x_a. 307 R 19
____b. 307 R 1
____c. 300 R 3
____d. 37 R 9

10. Solve: 32 + x=71
____a. 30
_x__b. 39
____c. 43
____d. 103

11. Solve: 13.y= 234
____a. 28
____b. 24
____c. 19
__x_d. 18

12. In 1998, there were 912,674 U.S. residents who were born in the Philippines, 744,830 who were born in Canada, and 736,971 who were born in Cuba. How many U.S. residents were born in those three countries?
____a. 1,481,801
____b. 1,657,504
_x__c. 2,394,475
____d. 3,139,305

13. There were 33,191 athletes who participated in NCAA soccer in 1997-1998. This was 4362 more than the number of athletes who participated in NCAA basketball. How many athletes participated in basketball?
_x__a. 28,829
____b. 33, 191
____c. 35,372
____d. 37,553

14. A rectangle conference table measures 72 in. by 150 in. What is the area of the table?
____a. 444 in 2
____b. 5400 in 2
____c. 7992 in 2
_x__d. 10,800 in 2

15. A box contains 5750 paper clips. How many orders can be filled from the box if each order requires 250 paper clips?
_x__a. 23
____b. 25
____c. 30
____d. 50

16. Simplify: (83-18) divided 5
____a. 11
__x_b. 13
____c. 20
____d. 79

17. Simplify: 2^3 +56 divided 7
____a. 16
____b. 14
____c. 12
_x__d. 9

18. Find the average of 93, 82, 67, and 82.
____a. 85
____b. 82
_x__c. 81
____d. 80

19. Simplify: 5x{(24-19)x[(25+23)divided 12-(9-7)]}
____a. 570
____b. 120
____c. 100
__x_d. 50

20. Brandon scores four 92's, three 88's, and a 96 on his eight quizzes. Find his average.
____a. 88
____b. 90
____c. 91
_x__d. 92