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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 507 · 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.What is the value of the digit 4 in 41.836? (a) 0.4 (b) 0.04 (c) 4 (d) 40
  2. 2.What is the value of the digit 3 in 32.861? (a) 0.03 (b) 30 (c) 0.3 (d) 3
  3. 3.Which is the greatest: 0.72, 0.035, 0.7, 0.638? (a) 0.72 (b) 0.035 (c) 0.7 (d) 0.638
  4. 4.What is the value of the digit 3 in 45.139? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  5. 5.Which is the smallest: 0.25, 0.034, 0.2, 0.115? (a) 0.25 (b) 0.034 (c) 0.2 (d) 0.115
  6. 6.4.19 + 3.7 = ? (a) 7.99 (b) 7.79 (c) 4.56 (d) 7.89
  7. 7.9.91 + 3.2 = ? (a) 13.21 (b) 10.23 (c) 13.11 (d) 13.01
  8. 8.8.71 + 2.5 = ? (a) 8.96 (b) 11.11 (c) 11.31 (d) 11.21
  9. 9.Which is the greatest: 0.86, 0.8, 0.732, 0.093? (a) 0.86 (b) 0.8 (c) 0.732 (d) 0.093
  10. 10.2.55 + 9.7 = ? (a) 12.35 (b) 12.15 (c) 3.52 (d) 12.25
  11. 11.What is the value of the digit 7 in 27.389? (a) 0.7 (b) 70 (c) 7 (d) 0.07
  12. 12.Which is the smallest: 0.71, 0.024, 0.652, 0.7? (a) 0.71 (b) 0.024 (c) 0.652 (d) 0.7
  13. 13.What is the value of the digit 2 in 62.574? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  14. 14.What is the value of the digit 2 in 21.743? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  15. 15.7.43 + 2.5 = ? (a) 9.83 (b) 10.03 (c) 9.93 (d) 7.68
  16. 16.6.81 + 5.2 = ? (a) 11.91 (b) 12.01 (c) 12.11 (d) 7.33
  17. 17.Which is the greatest: 0.184, 0.25, 0.2, 0.055? (a) 0.184 (b) 0.25 (c) 0.2 (d) 0.055
  18. 18.Which is the smallest: 0.385, 0.41, 0.043, 0.4? (a) 0.385 (b) 0.41 (c) 0.043 (d) 0.4
  19. 19.Which is the smallest: 0.714, 0.056, 0.88, 0.8? (a) 0.714 (b) 0.056 (c) 0.88 (d) 0.8
  20. 20.Which is the greatest: 0.64, 0.583, 0.011, 0.6? (a) 0.64 (b) 0.583 (c) 0.011 (d) 0.6
  21. 21.What is the value of the digit 5 in 96.758? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  22. 22.2.98 + 1.9 = ? (a) 3.17 (b) 4.88 (c) 4.78 (d) 4.98
  23. 23.What is the value of the digit 2 in 62.137? (a) 2 (b) 0.2 (c) 20 (d) 0.02
  24. 24.Which is the smallest: 0.052, 0.6, 0.591, 0.63? (a) 0.052 (b) 0.6 (c) 0.591 (d) 0.63
  25. 25.What is the value of the digit 1 in 14.729? (a) 10 (b) 0.01 (c) 1 (d) 0.1
  26. 26.3.53 + 2.4 = ? (a) 6.03 (b) 5.83 (c) 5.93 (d) 3.77
  27. 27.What is the value of the digit 3 in 93.845? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  28. 28.Which is the greatest: 0.031, 0.525, 0.63, 0.6? (a) 0.031 (b) 0.525 (c) 0.63 (d) 0.6
  29. 29.3.41 + 7.4 = ? (a) 10.91 (b) 10.81 (c) 10.71 (d) 4.15
  30. 30.7.52 + 6.9 = ? (a) 14.32 (b) 14.42 (c) 14.52 (d) 8.21
  31. 31.Which is the smallest: 0.37, 0.3, 0.019, 0.226? (a) 0.37 (b) 0.3 (c) 0.019 (d) 0.226
  32. 32.Which is the smallest: 0.089, 0.89, 0.8, 0.768? (a) 0.089 (b) 0.89 (c) 0.8 (d) 0.768
  33. 33.Which is the smallest: 0.053, 0.594, 0.6, 0.62? (a) 0.053 (b) 0.594 (c) 0.6 (d) 0.62
  34. 34.Which is the smallest: 0.083, 0.497, 0.5, 0.52? (a) 0.083 (b) 0.497 (c) 0.5 (d) 0.52
  35. 35.2.91 + 7.7 = ? (a) 3.68 (b) 10.71 (c) 10.51 (d) 10.61
  36. 36.Which is the smallest: 0.253, 0.017, 0.37, 0.3? (a) 0.253 (b) 0.017 (c) 0.37 (d) 0.3
  37. 37.What is the value of the digit 8 in 78.615? (a) 0.8 (b) 80 (c) 8 (d) 0.08
  38. 38.What is the value of the digit 8 in 83.261? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  39. 39.Which is the greatest: 0.32, 0.054, 0.221, 0.3? (a) 0.32 (b) 0.054 (c) 0.221 (d) 0.3
  40. 40.Which is the greatest: 0.059, 0.64, 0.537, 0.6? (a) 0.059 (b) 0.64 (c) 0.537 (d) 0.6

Answer key

  1. 40
  2. 30
  3. 0.72
  4. 0.03
  5. 0.034
  6. 7.89
  7. 13.11
  8. 11.21
  9. 0.86
  10. 12.25
  11. 7
  12. 0.024
  13. 2
  14. 20
  15. 9.93
  16. 12.01
  17. 0.25
  18. 0.043
  19. 0.056
  20. 0.64
  21. 0.05
  22. 4.88
  23. 2
  24. 0.052
  25. 10
  26. 5.93
  27. 3
  28. 0.63
  29. 10.81
  30. 14.42
  31. 0.019
  32. 0.089
  33. 0.053
  34. 0.083
  35. 10.61
  36. 0.017
  37. 8
  38. 80
  39. 0.32
  40. 0.64

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