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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 113 · 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 smallest: 0.416, 0.072, 0.52, 0.5? (a) 0.416 (b) 0.072 (c) 0.52 (d) 0.5
  2. 2.Which is the greatest: 0.073, 0.35, 0.3, 0.217? (a) 0.073 (b) 0.35 (c) 0.3 (d) 0.217
  3. 3.What is the value of the digit 3 in 36.145? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  4. 4.What is the value of the digit 7 in 47.628? (a) 7 (b) 70 (c) 0.7 (d) 0.07
  5. 5.What is the value of the digit 3 in 37.518? (a) 3 (b) 0.03 (c) 0.3 (d) 30
  6. 6.Which is the greatest: 0.2, 0.191, 0.24, 0.093? (a) 0.2 (b) 0.191 (c) 0.24 (d) 0.093
  7. 7.Which is the smallest: 0.38, 0.3, 0.267, 0.015? (a) 0.38 (b) 0.3 (c) 0.267 (d) 0.015
  8. 8.Which is the greatest: 0.22, 0.132, 0.2, 0.069? (a) 0.22 (b) 0.132 (c) 0.2 (d) 0.069
  9. 9.What is the value of the digit 1 in 71.564? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  10. 10.Which is the smallest: 0.83, 0.8, 0.073, 0.738? (a) 0.83 (b) 0.8 (c) 0.073 (d) 0.738
  11. 11.2.41 + 2.1 = ? (a) 4.41 (b) 4.51 (c) 2.62 (d) 4.61
  12. 12.9.11 + 9.8 = ? (a) 10.09 (b) 19.01 (c) 18.81 (d) 18.91
  13. 13.8.09 + 4.5 = ? (a) 12.49 (b) 12.59 (c) 12.69 (d) 8.54
  14. 14.9.49 + 1.1 = ? (a) 10.59 (b) 9.6 (c) 10.69 (d) 10.49
  15. 15.Which is the greatest: 0.437, 0.025, 0.52, 0.5? (a) 0.437 (b) 0.025 (c) 0.52 (d) 0.5
  16. 16.6.98 + 4.1 = ? (a) 10.98 (b) 7.39 (c) 11.08 (d) 11.18
  17. 17.3.33 + 1.5 = ? (a) 3.48 (b) 4.83 (c) 4.93 (d) 4.73
  18. 18.8.95 + 2.5 = ? (a) 11.55 (b) 11.35 (c) 9.2 (d) 11.45
  19. 19.7.71 + 3.2 = ? (a) 10.81 (b) 8.03 (c) 11.01 (d) 10.91
  20. 20.3.98 + 2.9 = ? (a) 6.78 (b) 6.98 (c) 6.88 (d) 4.27
  21. 21.3.63 + 5.6 = ? (a) 9.13 (b) 9.33 (c) 9.23 (d) 4.19
  22. 22.8.91 + 3.4 = ? (a) 9.25 (b) 12.31 (c) 12.41 (d) 12.21
  23. 23.8.69 + 1.6 = ? (a) 8.85 (b) 10.19 (c) 10.29 (d) 10.39
  24. 24.2.81 + 1.2 = ? (a) 4.11 (b) 3.91 (c) 4.01 (d) 2.93
  25. 25.What is the value of the digit 5 in 35.281? (a) 50 (b) 0.05 (c) 0.5 (d) 5
  26. 26.4.74 + 9.3 = ? (a) 5.67 (b) 13.94 (c) 14.14 (d) 14.04
  27. 27.Which is the smallest: 0.2, 0.27, 0.138, 0.048? (a) 0.2 (b) 0.27 (c) 0.138 (d) 0.048
  28. 28.Which is the greatest: 0.033, 0.75, 0.7, 0.645? (a) 0.033 (b) 0.75 (c) 0.7 (d) 0.645
  29. 29.7.79 + 4.2 = ? (a) 11.89 (b) 12.09 (c) 8.21 (d) 11.99
  30. 30.Which is the greatest: 0.6, 0.514, 0.078, 0.66? (a) 0.6 (b) 0.514 (c) 0.078 (d) 0.66
  31. 31.What is the value of the digit 6 in 45.286? (a) 0.6 (b) 0.006 (c) 6 (d) 0.06
  32. 32.Which is the greatest: 0.34, 0.279, 0.027, 0.3? (a) 0.34 (b) 0.279 (c) 0.027 (d) 0.3
  33. 33.7.42 + 1.5 = ? (a) 7.57 (b) 9.02 (c) 8.82 (d) 8.92
  34. 34.What is the value of the digit 4 in 84.921? (a) 4 (b) 0.04 (c) 40 (d) 0.4
  35. 35.4.71 + 4.2 = ? (a) 9.01 (b) 5.13 (c) 8.91 (d) 8.81
  36. 36.What is the value of the digit 1 in 79.513? (a) 0.001 (b) 1 (c) 0.1 (d) 0.01
  37. 37.What is the value of the digit 9 in 49.278? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  38. 38.What is the value of the digit 9 in 21.589? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  39. 39.9.31 + 9.4 = ? (a) 18.71 (b) 18.61 (c) 10.25 (d) 18.81
  40. 40.Which is the greatest: 0.8, 0.751, 0.087, 0.85? (a) 0.8 (b) 0.751 (c) 0.087 (d) 0.85

Answer key

  1. 0.072
  2. 0.35
  3. 30
  4. 7
  5. 30
  6. 0.24
  7. 0.015
  8. 0.22
  9. 1
  10. 0.073
  11. 4.51
  12. 18.91
  13. 12.59
  14. 10.59
  15. 0.52
  16. 11.08
  17. 4.83
  18. 11.45
  19. 10.91
  20. 6.88
  21. 9.23
  22. 12.31
  23. 10.29
  24. 4.01
  25. 5
  26. 14.04
  27. 0.048
  28. 0.75
  29. 11.99
  30. 0.66
  31. 0.006
  32. 0.34
  33. 8.92
  34. 4
  35. 8.91
  36. 0.01
  37. 9
  38. 0.009
  39. 18.71
  40. 0.85

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