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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 733 · 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 3 in 74.631? (a) 0.03 (b) 0.003 (c) 0.3 (d) 3
  2. 2.What is the value of the digit 8 in 71.289? (a) 0.08 (b) 8 (c) 0.8 (d) 0.008
  3. 3.Which is the smallest: 0.063, 0.112, 0.29, 0.2? (a) 0.063 (b) 0.112 (c) 0.29 (d) 0.2
  4. 4.9.63 + 3.3 = ? (a) 13.03 (b) 12.93 (c) 12.83 (d) 9.96
  5. 5.6.35 + 6.2 = ? (a) 6.97 (b) 12.55 (c) 12.65 (d) 12.45
  6. 6.What is the value of the digit 6 in 74.615? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  7. 7.What is the value of the digit 9 in 29.867? (a) 0.9 (b) 9 (c) 90 (d) 0.09
  8. 8.What is the value of the digit 1 in 61.374? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  9. 9.What is the value of the digit 1 in 95.871? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  10. 10.1.01 + 5.4 = ? (a) 6.31 (b) 6.41 (c) 1.55 (d) 6.51
  11. 11.Which is the smallest: 0.72, 0.093, 0.7, 0.699? (a) 0.72 (b) 0.093 (c) 0.7 (d) 0.699
  12. 12.7.39 + 7.6 = ? (a) 8.15 (b) 15.09 (c) 14.99 (d) 14.89
  13. 13.2.71 + 4.7 = ? (a) 3.18 (b) 7.41 (c) 7.31 (d) 7.51
  14. 14.9.31 + 1.1 = ? (a) 10.31 (b) 10.41 (c) 10.51 (d) 9.42
  15. 15.Which is the smallest: 0.7, 0.093, 0.635, 0.76? (a) 0.7 (b) 0.093 (c) 0.635 (d) 0.76
  16. 16.9.62 + 2.7 = ? (a) 12.22 (b) 12.32 (c) 9.89 (d) 12.42
  17. 17.Which is the smallest: 0.389, 0.47, 0.4, 0.045? (a) 0.389 (b) 0.47 (c) 0.4 (d) 0.045
  18. 18.5.01 + 3.2 = ? (a) 5.33 (b) 8.21 (c) 8.31 (d) 8.11
  19. 19.Which is the greatest: 0.83, 0.796, 0.018, 0.8? (a) 0.83 (b) 0.796 (c) 0.018 (d) 0.8
  20. 20.8.24 + 1.1 = ? (a) 9.24 (b) 9.44 (c) 9.34 (d) 8.35
  21. 21.6.71 + 7.1 = ? (a) 7.42 (b) 13.71 (c) 13.91 (d) 13.81
  22. 22.Which is the greatest: 0.8, 0.81, 0.717, 0.041? (a) 0.8 (b) 0.81 (c) 0.717 (d) 0.041
  23. 23.What is the value of the digit 5 in 53.491? (a) 50 (b) 0.5 (c) 5 (d) 0.05
  24. 24.1.32 + 5.4 = ? (a) 6.82 (b) 6.62 (c) 6.72 (d) 1.86
  25. 25.3.71 + 1.1 = ? (a) 4.91 (b) 4.81 (c) 3.82 (d) 4.71
  26. 26.3.92 + 1.5 = ? (a) 5.42 (b) 4.07 (c) 5.32 (d) 5.52
  27. 27.Which is the smallest: 0.094, 0.134, 0.2, 0.27? (a) 0.094 (b) 0.134 (c) 0.2 (d) 0.27
  28. 28.Which is the smallest: 0.016, 0.2, 0.25, 0.111? (a) 0.016 (b) 0.2 (c) 0.25 (d) 0.111
  29. 29.What is the value of the digit 6 in 69.824? (a) 6 (b) 60 (c) 0.6 (d) 0.06
  30. 30.2.99 + 5.7 = ? (a) 8.69 (b) 3.56 (c) 8.79 (d) 8.59
  31. 31.Which is the smallest: 0.3, 0.39, 0.037, 0.248? (a) 0.3 (b) 0.39 (c) 0.037 (d) 0.248
  32. 32.What is the value of the digit 6 in 16.498? (a) 0.06 (b) 60 (c) 6 (d) 0.6
  33. 33.Which is the smallest: 0.5, 0.55, 0.466, 0.015? (a) 0.5 (b) 0.55 (c) 0.466 (d) 0.015
  34. 34.Which is the greatest: 0.273, 0.32, 0.3, 0.048? (a) 0.273 (b) 0.32 (c) 0.3 (d) 0.048
  35. 35.Which is the greatest: 0.022, 0.48, 0.333, 0.4? (a) 0.022 (b) 0.48 (c) 0.333 (d) 0.4
  36. 36.9.24 + 8.7 = ? (a) 17.84 (b) 10.11 (c) 18.04 (d) 17.94
  37. 37.Which is the greatest: 0.5, 0.54, 0.464, 0.066? (a) 0.5 (b) 0.54 (c) 0.464 (d) 0.066
  38. 38.What is the value of the digit 2 in 78.542? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02
  39. 39.9.93 + 3.4 = ? (a) 10.27 (b) 13.33 (c) 13.43 (d) 13.23
  40. 40.What is the value of the digit 4 in 46.817? (a) 0.4 (b) 4 (c) 0.04 (d) 40

Answer key

  1. 0.03
  2. 0.08
  3. 0.063
  4. 12.93
  5. 12.55
  6. 0.6
  7. 9
  8. 1
  9. 0.001
  10. 6.41
  11. 0.093
  12. 14.99
  13. 7.41
  14. 10.41
  15. 0.093
  16. 12.32
  17. 0.045
  18. 8.21
  19. 0.83
  20. 9.34
  21. 13.81
  22. 0.81
  23. 50
  24. 6.72
  25. 4.81
  26. 5.42
  27. 0.094
  28. 0.016
  29. 60
  30. 8.69
  31. 0.037
  32. 6
  33. 0.015
  34. 0.32
  35. 0.48
  36. 17.94
  37. 0.54
  38. 0.002
  39. 13.33
  40. 40

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