Wednesday, December 2, 2009

Homework #2

Change the fraction to a decimal:

1) 3/4

2) 5/6

3) 5 3/8

4) 2 2/3

5) 56/7

Change the decimal to a fraction and reduce to lowest terms:

6) 0.6

7) 3.45

8) 0.0012

9) 0.777

10) 44.44

11) 1.5

12) 6.200

Put each list of decimals in order from smallest to largest:

13) 0.001, 0.0101, 0.010

14) 3.13, 3.1301, 3.12999999

Round each decimal to the nearest whole number:

15) 3.001

16) 5.5

17) 0.00332

18) 4.9876123

19) 3.511111

Round to the nearest tenth:

20) 3.0510000000

21) 5.005

22) 6.999

23) 1.09999

24) 5.05

Where should the decimal point be placed in each sum?

25) 3.5 + 3.7 = 72

26) 1.4 + 0.8 + 22

27) 4.835 + 1.217 = 6052

28) 7.42 + 125.931 = 133351

Add the following decimals:

30) 1.789 + 0.219

31) 1.48 + 0.9

32) 3.59 +2

33) 10.7 + 8.935

34) 6.1 + 0.29080 +4

35) 14.004 + 0.9 + 0.21

36) 1.03 + 2.5 + 40.016

37) 5.2 + 0.7999 + 0.0001

Subtract the following decimals:

40) 6.4 - 1.3

41) 1.89 - 0.37

42) 12.35 - 8.05

43) 2.35 - 0.9

44) 5 - 3.81

45) 1 - 0.98765

46) 2.4 - 2.3999

Word Problems

47) At the market, Joe bought 2.3 pounds of tomatoes, 5.4 pounds of garlic, 9.12 pounds of tomatoes, and 4.2 pounds of blueberries. How many pounds of produce did he buy in all?

48) Mary improved her time running a mile on the track from 6.3 minutes to 5.56 minutes. By how much did she improve her time?

49) Biff loaned Joe $32.23 at the market to pay for the produce. Joe paid Biff back $25.00 the next day. How much money did Biff make in the deal?

Add these fractions and decimals. Give your answer in fractions and decimals:

50) 1/2 + 0.5

51) 1/4 + 0.25

52) 5/8 + 0.5

53) 4.9 +3/10

54) 0.3 + 7/10

55) 3.15 + 3 5/6

Multiply each decimal:

56) 0.01 × 0.6

57) 3.1 × 4

58) 0.1 × 0.2

59) 15 × 0.21

58) 0.875 × 8

59) 2.5 × 0.0034

60) 100 × 0.01765

61) 38.71 × 1,000

Divide each fraction:

62) 1.4 ÷ 7

63) 51.2 ÷ 4

64) 2.2 ÷ 0.7

65) 256 ÷ 0.0004

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