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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 260 · 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: 0.3, 0.38, 0.294, 0.016? (a) 0.3 (b) 0.38 (c) 0.294 (d) 0.016
  2. 2.Which is the greatest: 0.38, 0.3, 0.228, 0.021? (a) 0.38 (b) 0.3 (c) 0.228 (d) 0.021
  3. 3.8.51 + 2.4 = ? (a) 11.01 (b) 10.91 (c) 10.81 (d) 8.75
  4. 4.What is the value of the digit 3 in 56.837? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  5. 5.6.86 + 8.3 = ? (a) 15.16 (b) 15.06 (c) 7.69 (d) 15.26
  6. 6.What is the value of the digit 4 in 41.753? (a) 0.4 (b) 0.04 (c) 4 (d) 40
  7. 7.What is the value of the digit 7 in 89.746? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  8. 8.Which is the greatest: 0.764, 0.037, 0.83, 0.8? (a) 0.764 (b) 0.037 (c) 0.83 (d) 0.8
  9. 9.Which is the greatest: 0.055, 0.55, 0.5, 0.457? (a) 0.055 (b) 0.55 (c) 0.5 (d) 0.457
  10. 10.What is the value of the digit 1 in 97.412? (a) 0.001 (b) 1 (c) 0.01 (d) 0.1
  11. 11.4.61 + 4.5 = ? (a) 9.21 (b) 5.06 (c) 9.11 (d) 9.01
  12. 12.8.57 + 7.6 = ? (a) 16.07 (b) 9.33 (c) 16.17 (d) 16.27
  13. 13.Which is the greatest: 0.66, 0.072, 0.6, 0.515? (a) 0.66 (b) 0.072 (c) 0.6 (d) 0.515
  14. 14.What is the value of the digit 4 in 48.723? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  15. 15.What is the value of the digit 2 in 26.435? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  16. 16.Which is the smallest: 0.076, 0.58, 0.5, 0.496? (a) 0.076 (b) 0.58 (c) 0.5 (d) 0.496
  17. 17.7.48 + 4.4 = ? (a) 11.78 (b) 11.88 (c) 11.98 (d) 7.92
  18. 18.What is the value of the digit 5 in 25.389? (a) 0.5 (b) 0.05 (c) 50 (d) 5
  19. 19.9.12 + 9.2 = ? (a) 18.32 (b) 10.04 (c) 18.42 (d) 18.22
  20. 20.9.74 + 2.2 = ? (a) 11.84 (b) 11.94 (c) 9.96 (d) 12.04
  21. 21.What is the value of the digit 4 in 59.421? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  22. 22.What is the value of the digit 3 in 85.793? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  23. 23.What is the value of the digit 3 in 39.256? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  24. 24.5.38 + 2.3 = ? (a) 7.68 (b) 7.58 (c) 5.61 (d) 7.78
  25. 25.7.62 + 3.9 = ? (a) 8.01 (b) 11.52 (c) 11.42 (d) 11.62
  26. 26.7.54 + 5.9 = ? (a) 13.44 (b) 13.34 (c) 8.13 (d) 13.54
  27. 27.6.73 + 1.9 = ? (a) 6.92 (b) 8.63 (c) 8.53 (d) 8.73
  28. 28.What is the value of the digit 3 in 36.841? (a) 30 (b) 3 (c) 0.3 (d) 0.03
  29. 29.Which is the greatest: 0.089, 0.47, 0.4, 0.322? (a) 0.089 (b) 0.47 (c) 0.4 (d) 0.322
  30. 30.3.61 + 9.6 = ? (a) 13.21 (b) 13.11 (c) 13.31 (d) 4.57
  31. 31.What is the value of the digit 1 in 52.614? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  32. 32.What is the value of the digit 4 in 97.134? (a) 0.4 (b) 0.004 (c) 0.04 (d) 4
  33. 33.Which is the greatest: 0.2, 0.22, 0.078, 0.158? (a) 0.2 (b) 0.22 (c) 0.078 (d) 0.158
  34. 34.Which is the smallest: 0.7, 0.71, 0.656, 0.067? (a) 0.7 (b) 0.71 (c) 0.656 (d) 0.067
  35. 35.2.08 + 2.5 = ? (a) 2.33 (b) 4.58 (c) 4.68 (d) 4.48
  36. 36.What is the value of the digit 9 in 49.653? (a) 0.9 (b) 90 (c) 0.09 (d) 9
  37. 37.Which is the greatest: 0.8, 0.022, 0.742, 0.84? (a) 0.8 (b) 0.022 (c) 0.742 (d) 0.84
  38. 38.2.81 + 3.4 = ? (a) 6.11 (b) 6.21 (c) 6.31 (d) 3.15
  39. 39.What is the value of the digit 4 in 67.492? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  40. 40.Which is the greatest: 0.024, 0.121, 0.23, 0.2? (a) 0.024 (b) 0.121 (c) 0.23 (d) 0.2

Answer key

  1. 0.38
  2. 0.38
  3. 10.91
  4. 0.03
  5. 15.16
  6. 40
  7. 0.7
  8. 0.83
  9. 0.55
  10. 0.01
  11. 9.11
  12. 16.17
  13. 0.66
  14. 40
  15. 20
  16. 0.076
  17. 11.88
  18. 5
  19. 18.32
  20. 11.94
  21. 0.4
  22. 0.003
  23. 30
  24. 7.68
  25. 11.52
  26. 13.44
  27. 8.63
  28. 30
  29. 0.47
  30. 13.21
  31. 0.01
  32. 0.004
  33. 0.22
  34. 0.067
  35. 4.58
  36. 9
  37. 0.84
  38. 6.21
  39. 0.4
  40. 0.23

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