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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 442 · 40 questions
TalentJR

How to solve it (Same number of places): Add zeros at the end so every decimal has the same number of places (0.5 = 0.500). Compare or add them like whole numbers, keeping the decimal points in a line. Place value after the point: tenths (0.1), hundredths (0.01), thousandths (0.001).

NameDateTime takenScore ___ / 40
  1. 1.Which is the greatest: 0.448, 0.57, 0.5, 0.023? (a) 0.448 (b) 0.57 (c) 0.5 (d) 0.023
  2. 2.What is the value of the digit 1 in 74.319? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  3. 3.Which is the smallest: 0.8, 0.712, 0.87, 0.043? (a) 0.8 (b) 0.712 (c) 0.87 (d) 0.043
  4. 4.What is the value of the digit 7 in 57.123? (a) 0.7 (b) 7 (c) 70 (d) 0.07
  5. 5.Which is the greatest: 0.433, 0.5, 0.091, 0.55? (a) 0.433 (b) 0.5 (c) 0.091 (d) 0.55
  6. 6.Which is the greatest: 0.271, 0.048, 0.39, 0.3? (a) 0.271 (b) 0.048 (c) 0.39 (d) 0.3
  7. 7.1.86 + 7.6 = ? (a) 2.62 (b) 9.36 (c) 9.56 (d) 9.46
  8. 8.8.01 + 5.6 = ? (a) 13.71 (b) 8.57 (c) 13.51 (d) 13.61
  9. 9.5.21 + 3.6 = ? (a) 8.91 (b) 8.71 (c) 5.57 (d) 8.81
  10. 10.Which is the smallest: 0.055, 0.68, 0.6, 0.573? (a) 0.055 (b) 0.68 (c) 0.6 (d) 0.573
  11. 11.What is the value of the digit 9 in 76.394? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  12. 12.1.65 + 7.9 = ? (a) 9.55 (b) 9.45 (c) 2.44 (d) 9.65
  13. 13.Which is the smallest: 0.043, 0.346, 0.4, 0.41? (a) 0.043 (b) 0.346 (c) 0.4 (d) 0.41
  14. 14.5.02 + 8.2 = ? (a) 13.12 (b) 13.22 (c) 13.32 (d) 5.84
  15. 15.What is the value of the digit 5 in 76.254? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  16. 16.7.83 + 7.2 = ? (a) 14.93 (b) 15.03 (c) 15.13 (d) 8.55
  17. 17.Which is the smallest: 0.091, 0.8, 0.784, 0.83? (a) 0.091 (b) 0.8 (c) 0.784 (d) 0.83
  18. 18.Which is the smallest: 0.744, 0.85, 0.8, 0.093? (a) 0.744 (b) 0.85 (c) 0.8 (d) 0.093
  19. 19.7.81 + 7.9 = ? (a) 15.81 (b) 15.61 (c) 15.71 (d) 8.6
  20. 20.8.13 + 2.2 = ? (a) 10.23 (b) 10.33 (c) 8.35 (d) 10.43
  21. 21.6.71 + 2.6 = ? (a) 6.97 (b) 9.41 (c) 9.21 (d) 9.31
  22. 22.6.81 + 1.9 = ? (a) 7 (b) 8.61 (c) 8.71 (d) 8.81
  23. 23.9.43 + 5.3 = ? (a) 14.83 (b) 9.96 (c) 14.73 (d) 14.63
  24. 24.2.47 + 9.1 = ? (a) 11.67 (b) 11.57 (c) 3.38 (d) 11.47
  25. 25.What is the value of the digit 1 in 34.851? (a) 0.001 (b) 0.1 (c) 0.01 (d) 1
  26. 26.What is the value of the digit 5 in 58.196? (a) 5 (b) 50 (c) 0.5 (d) 0.05
  27. 27.What is the value of the digit 2 in 14.253? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  28. 28.1.83 + 7.5 = ? (a) 2.58 (b) 9.23 (c) 9.33 (d) 9.43
  29. 29.What is the value of the digit 9 in 59.142? (a) 0.09 (b) 9 (c) 0.9 (d) 90
  30. 30.4.76 + 3.8 = ? (a) 8.66 (b) 5.14 (c) 8.46 (d) 8.56
  31. 31.Which is the greatest: 0.52, 0.463, 0.048, 0.5? (a) 0.52 (b) 0.463 (c) 0.048 (d) 0.5
  32. 32.Which is the smallest: 0.071, 0.5, 0.51, 0.433? (a) 0.071 (b) 0.5 (c) 0.51 (d) 0.433
  33. 33.What is the value of the digit 1 in 12.486? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  34. 34.Which is the smallest: 0.5, 0.436, 0.53, 0.021? (a) 0.5 (b) 0.436 (c) 0.53 (d) 0.021
  35. 35.7.88 + 5.5 = ? (a) 13.48 (b) 13.28 (c) 13.38 (d) 8.43
  36. 36.What is the value of the digit 6 in 34.596? (a) 0.006 (b) 0.6 (c) 0.06 (d) 6
  37. 37.3.48 + 4.5 = ? (a) 3.93 (b) 8.08 (c) 7.88 (d) 7.98
  38. 38.Which is the greatest: 0.2, 0.25, 0.042, 0.145? (a) 0.2 (b) 0.25 (c) 0.042 (d) 0.145
  39. 39.Which is the smallest: 0.36, 0.227, 0.087, 0.3? (a) 0.36 (b) 0.227 (c) 0.087 (d) 0.3
  40. 40.What is the value of the digit 2 in 21.839? (a) 2 (b) 0.02 (c) 0.2 (d) 20

Answer key

  1. 0.57
  2. 0.01
  3. 0.043
  4. 7
  5. 0.55
  6. 0.39
  7. 9.46
  8. 13.61
  9. 8.81
  10. 0.055
  11. 0.09
  12. 9.55
  13. 0.043
  14. 13.22
  15. 0.05
  16. 15.03
  17. 0.091
  18. 0.093
  19. 15.71
  20. 10.33
  21. 9.31
  22. 8.71
  23. 14.73
  24. 11.57
  25. 0.001
  26. 50
  27. 0.2
  28. 9.33
  29. 9
  30. 8.56
  31. 0.52
  32. 0.071
  33. 10
  34. 0.021
  35. 13.38
  36. 0.006
  37. 7.98
  38. 0.25
  39. 0.087
  40. 20

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