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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 443 · 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: 0.39, 0.3, 0.288, 0.045? (a) 0.39 (b) 0.3 (c) 0.288 (d) 0.045
  2. 2.Which is the greatest: 0.048, 0.4, 0.342, 0.41? (a) 0.048 (b) 0.4 (c) 0.342 (d) 0.41
  3. 3.What is the value of the digit 3 in 49.632? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  4. 4.3.91 + 5.5 = ? (a) 9.51 (b) 9.31 (c) 9.41 (d) 4.46
  5. 5.Which is the smallest: 0.4, 0.44, 0.362, 0.022? (a) 0.4 (b) 0.44 (c) 0.362 (d) 0.022
  6. 6.What is the value of the digit 9 in 23.579? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  7. 7.Which is the greatest: 0.81, 0.029, 0.8, 0.722? (a) 0.81 (b) 0.029 (c) 0.8 (d) 0.722
  8. 8.7.13 + 3.5 = ? (a) 10.73 (b) 7.48 (c) 10.53 (d) 10.63
  9. 9.5.85 + 3.4 = ? (a) 9.35 (b) 9.15 (c) 9.25 (d) 6.19
  10. 10.7.15 + 3.1 = ? (a) 10.15 (b) 10.35 (c) 7.46 (d) 10.25
  11. 11.What is the value of the digit 5 in 56.187? (a) 0.5 (b) 50 (c) 5 (d) 0.05
  12. 12.What is the value of the digit 2 in 82.695? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  13. 13.What is the value of the digit 5 in 82.459? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  14. 14.What is the value of the digit 2 in 67.218? (a) 0.2 (b) 0.002 (c) 0.02 (d) 2
  15. 15.Which is the greatest: 0.5, 0.57, 0.038, 0.481? (a) 0.5 (b) 0.57 (c) 0.038 (d) 0.481
  16. 16.What is the value of the digit 9 in 31.928? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  17. 17.What is the value of the digit 2 in 52.183? (a) 0.02 (b) 20 (c) 0.2 (d) 2
  18. 18.What is the value of the digit 3 in 35.824? (a) 0.03 (b) 0.3 (c) 3 (d) 30
  19. 19.What is the value of the digit 5 in 31.587? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  20. 20.7.09 + 6.8 = ? (a) 13.79 (b) 7.77 (c) 13.99 (d) 13.89
  21. 21.What is the value of the digit 9 in 96.851? (a) 9 (b) 90 (c) 0.09 (d) 0.9
  22. 22.What is the value of the digit 1 in 16.389? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  23. 23.3.61 + 9.8 = ? (a) 4.59 (b) 13.31 (c) 13.51 (d) 13.41
  24. 24.3.43 + 5.6 = ? (a) 9.13 (b) 8.93 (c) 9.03 (d) 3.99
  25. 25.7.53 + 1.8 = ? (a) 7.71 (b) 9.23 (c) 9.43 (d) 9.33
  26. 26.7.12 + 7.8 = ? (a) 15.02 (b) 14.82 (c) 7.9 (d) 14.92
  27. 27.What is the value of the digit 3 in 92.317? (a) 0.03 (b) 3 (c) 0.003 (d) 0.3
  28. 28.What is the value of the digit 1 in 71.253? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  29. 29.Which is the smallest: 0.251, 0.071, 0.31, 0.3? (a) 0.251 (b) 0.071 (c) 0.31 (d) 0.3
  30. 30.3.81 + 1.9 = ? (a) 4 (b) 5.71 (c) 5.81 (d) 5.61
  31. 31.What is the value of the digit 9 in 26.395? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  32. 32.What is the value of the digit 4 in 19.245? (a) 0.4 (b) 4 (c) 0.004 (d) 0.04
  33. 33.What is the value of the digit 8 in 97.823? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  34. 34.What is the value of the digit 5 in 54.718? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  35. 35.What is the value of the digit 8 in 74.698? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  36. 36.Which is the greatest: 0.153, 0.068, 0.21, 0.2? (a) 0.153 (b) 0.068 (c) 0.21 (d) 0.2
  37. 37.Which is the smallest: 0.5, 0.425, 0.085, 0.54? (a) 0.5 (b) 0.425 (c) 0.085 (d) 0.54
  38. 38.Which is the greatest: 0.469, 0.55, 0.5, 0.017? (a) 0.469 (b) 0.55 (c) 0.5 (d) 0.017
  39. 39.Which is the greatest: 0.72, 0.7, 0.025, 0.638? (a) 0.72 (b) 0.7 (c) 0.025 (d) 0.638
  40. 40.Which is the greatest: 0.36, 0.3, 0.036, 0.298? (a) 0.36 (b) 0.3 (c) 0.036 (d) 0.298

Answer key

  1. 0.045
  2. 0.41
  3. 0.03
  4. 9.41
  5. 0.022
  6. 0.009
  7. 0.81
  8. 10.63
  9. 9.25
  10. 10.25
  11. 50
  12. 2
  13. 0.05
  14. 0.2
  15. 0.57
  16. 0.9
  17. 2
  18. 30
  19. 0.5
  20. 13.89
  21. 90
  22. 10
  23. 13.41
  24. 9.03
  25. 9.33
  26. 14.92
  27. 0.3
  28. 1
  29. 0.071
  30. 5.71
  31. 0.09
  32. 0.04
  33. 0.8
  34. 50
  35. 0.008
  36. 0.21
  37. 0.085
  38. 0.55
  39. 0.72
  40. 0.36

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