Find the least common multiple and greatest common factor ...



|MATH 012 |

|TEST 1 |

|REVIEW SHEET |

1. a) Explain how to write a decimal as a fraction.

b) Explain how to write a fraction as a decimal.

2. Write the following in decimal form and as a fraction or mixed number in

simplest form:

a) Fifteen hundredths.

b) Forty-two thousandths.

c) Two and eight hundredths.

d) Five and three hundred thirty three ten-thousandths.

3. Round 4,697.348 to the nearest:

a) Whole number.

b) Tenth.

c) Thousand.

d) Ten

e) Hundred.

f) Hundredth.

4. Arrange in order from least to greatest: a) 4.903, 4.9003, 4.9

b) – 0.408, – 0.4085, – 0.41

5. Write in decimal form. Write in exact form and rounded

to the nearest thousandth.

a) [pic]

b) [pic]

c) [pic]

d) [pic]

6. Indicate which operation is performed first. Then, evaluate each numerical expression:

a) [pic]

b) [pic]

c) [pic]

d) [pic]

7. Is [pic] a solution to the equation [pic]? Why or why not?

8. Solve the following equations. Check the result:

a) [pic]

b) [pic]

c) [pic]

d) [pic]

e) [pic]

f) [pic]

g) [pic]

h) [pic]

i) [pic]

j) [pic]

9. For the following:

I. Determine the LCD and write it down.

II. Rewrite the problem with equivalent fractions having the common denominator.

III. Perform addition or subtraction.

IV. Leave your answer in simplified form.

a) [pic]

b) [pic]

c) [pic]

d) [pic]

e) [pic]

f) [pic]

10. Perform the operations and write the answers in simplest form:

a) [pic]

b) [pic]

c) [pic]

d) [pic]

e) [pic]

11. A rectangle has a length of 9.8 yards and a width of 5.1 yards.

a) Find the area of the rectangle. Use proper units with your answer.

b) Find the perimeter of the rectangle. Use proper units with your answer.

12. Name the place value of the digit 7 in each of the following:

a) 232.0067 b) 0.0578 c) 21.87905 d) 701.559

13. Place >,

d) >

e) =

f) <

14.

15. a) 0.1

b) 0.04

c) [pic]

d) [pic]

16. a) [pic]

b) –0.005

c) 0.075

d) –2

17. a) [pic]

b) 1

c) [pic]

d) –13

18. 9 and 10 since [pic]

19. 26 in.

20. 7.48 cm

21. 10.5625 square cm

22.

[pic]

23. E: (5, 0), F: (0, 6)

G: (0, –1), H: (–3, 0)

24.

|x |y |(x, y) |

|0 |– 2 |(0, – 2 ) |

|4 |0 |(4, 0 ) |

|–3 |[pic] |(– 3, –3.5) |

|10 |3 |(10, 3 ) |

25. 240.8 inches

26. 84 blouses

27. a) 8000 kWh

b) $9600

28. a) 72.25 square feet

b) 44.5 feet

29. a) 19

b) $0.41

c) 96, [pic] calories

30. a) 8.8 gallons

b) 321 miles

31. $181.82

32. $6.12

33. a) $165.44

b) $7941.12

34. a) 14.8 pounds

b) 13.3 pounds

c) 12.8 pounds

d) 12.7 pounds[pic]

35. 6.93 ft.

36. 42 years old

37. 18.6 hours (or 18 hours, 36 min.)

38. a) $443.04

b) $761.28

39. a) [pic]

b) [pic]

c) [pic]

d) [pic]

e) [pic]

f) [pic]

40. a) [pic]

b) [pic]

c) [pic]

d) [pic]

41. a) 4x

b) x – 7

c) [pic]

d) [pic]

42. [pic]

43. [pic]

44. 365x

45. a) Mets: $110,000,000

Royals: $70,000,000

Yankees: $190,000,000

Red Sox: $140,000,000

b) $80,000,000

c) $210,000,000

d) 2.7

46. a) China: 1.3 billion

USA/Mexico: 0.4 billion

Indonesia: 0.2 billion

India: 1.1 billion

Brazil: 0.2 billion

Pakistan/Bangladesh: 0.3 billion

Rest of World: 3 billion

b) 2, China, India

c) 3.5 billion

d) 6.5 billion

e) [pic]

47. a) 52

b) 10

48. a) 1, 2, 3, 4, 6, 12

b) 1, 2, 3, 6, 9, 18

c) 6

49. 31 degrees

50. [pic]

51. [pic] left

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