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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 593 · 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: 0.42, 0.4, 0.084, 0.344? (a) 0.42 (b) 0.4 (c) 0.084 (d) 0.344
  2. 2.Which is the smallest: 0.015, 0.776, 0.8, 0.82? (a) 0.015 (b) 0.776 (c) 0.8 (d) 0.82
  3. 3.4.84 + 6.8 = ? (a) 11.54 (b) 11.64 (c) 11.74 (d) 5.52
  4. 4.What is the value of the digit 2 in 18.423? (a) 2 (b) 0.002 (c) 0.02 (d) 0.2
  5. 5.Which is the smallest: 0.31, 0.3, 0.234, 0.054? (a) 0.31 (b) 0.3 (c) 0.234 (d) 0.054
  6. 6.Which is the smallest: 0.272, 0.097, 0.33, 0.3? (a) 0.272 (b) 0.097 (c) 0.33 (d) 0.3
  7. 7.9.86 + 3.7 = ? (a) 13.56 (b) 13.66 (c) 10.23 (d) 13.46
  8. 8.Which is the smallest: 0.7, 0.75, 0.652, 0.095? (a) 0.7 (b) 0.75 (c) 0.652 (d) 0.095
  9. 9.Which is the greatest: 0.37, 0.3, 0.068, 0.288? (a) 0.37 (b) 0.3 (c) 0.068 (d) 0.288
  10. 10.Which is the greatest: 0.7, 0.635, 0.74, 0.054? (a) 0.7 (b) 0.635 (c) 0.74 (d) 0.054
  11. 11.What is the value of the digit 9 in 51.962? (a) 0.009 (b) 9 (c) 0.9 (d) 0.09
  12. 12.Which is the smallest: 0.083, 0.55, 0.5, 0.461? (a) 0.083 (b) 0.55 (c) 0.5 (d) 0.461
  13. 13.Which is the smallest: 0.094, 0.535, 0.64, 0.6? (a) 0.094 (b) 0.535 (c) 0.64 (d) 0.6
  14. 14.5.51 + 4.3 = ? (a) 9.71 (b) 9.91 (c) 9.81 (d) 5.94
  15. 15.9.63 + 3.3 = ? (a) 13.03 (b) 12.93 (c) 12.83 (d) 9.96
  16. 16.2.09 + 3.1 = ? (a) 5.29 (b) 5.09 (c) 5.19 (d) 2.4
  17. 17.What is the value of the digit 1 in 84.351? (a) 0.1 (b) 0.01 (c) 0.001 (d) 1
  18. 18.Which is the greatest: 0.021, 0.62, 0.526, 0.6? (a) 0.021 (b) 0.62 (c) 0.526 (d) 0.6
  19. 19.7.05 + 9.2 = ? (a) 7.97 (b) 16.35 (c) 16.15 (d) 16.25
  20. 20.What is the value of the digit 5 in 36.581? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  21. 21.8.06 + 9.6 = ? (a) 17.56 (b) 9.02 (c) 17.76 (d) 17.66
  22. 22.2.94 + 8.5 = ? (a) 11.54 (b) 3.79 (c) 11.44 (d) 11.34
  23. 23.3.66 + 6.8 = ? (a) 10.36 (b) 4.34 (c) 10.56 (d) 10.46
  24. 24.What is the value of the digit 7 in 34.795? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  25. 25.1.97 + 8.2 = ? (a) 2.79 (b) 10.17 (c) 10.27 (d) 10.07
  26. 26.4.16 + 3.5 = ? (a) 4.51 (b) 7.66 (c) 7.56 (d) 7.76
  27. 27.2.18 + 4.1 = ? (a) 2.59 (b) 6.28 (c) 6.18 (d) 6.38
  28. 28.8.14 + 4.9 = ? (a) 13.14 (b) 13.04 (c) 8.63 (d) 12.94
  29. 29.Which is the greatest: 0.545, 0.62, 0.6, 0.022? (a) 0.545 (b) 0.62 (c) 0.6 (d) 0.022
  30. 30.Which is the smallest: 0.048, 0.2, 0.22, 0.162? (a) 0.048 (b) 0.2 (c) 0.22 (d) 0.162
  31. 31.What is the value of the digit 3 in 31.896? (a) 0.03 (b) 30 (c) 0.3 (d) 3
  32. 32.What is the value of the digit 4 in 41.728? (a) 0.04 (b) 40 (c) 4 (d) 0.4
  33. 33.Which is the smallest: 0.064, 0.46, 0.4, 0.375? (a) 0.064 (b) 0.46 (c) 0.4 (d) 0.375
  34. 34.What is the value of the digit 3 in 24.358? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  35. 35.1.97 + 2.5 = ? (a) 4.57 (b) 4.37 (c) 2.22 (d) 4.47
  36. 36.1.06 + 6.9 = ? (a) 8.06 (b) 7.86 (c) 1.75 (d) 7.96
  37. 37.Which is the smallest: 0.086, 0.6, 0.576, 0.68? (a) 0.086 (b) 0.6 (c) 0.576 (d) 0.68
  38. 38.7.22 + 7.3 = ? (a) 14.52 (b) 14.42 (c) 14.62 (d) 7.95
  39. 39.4.43 + 9.8 = ? (a) 5.41 (b) 14.13 (c) 14.23 (d) 14.33
  40. 40.5.34 + 9.7 = ? (a) 15.14 (b) 6.31 (c) 15.04 (d) 14.94

Answer key

  1. 0.084
  2. 0.015
  3. 11.64
  4. 0.02
  5. 0.054
  6. 0.097
  7. 13.56
  8. 0.095
  9. 0.37
  10. 0.74
  11. 0.9
  12. 0.083
  13. 0.094
  14. 9.81
  15. 12.93
  16. 5.19
  17. 0.001
  18. 0.62
  19. 16.25
  20. 0.5
  21. 17.66
  22. 11.44
  23. 10.46
  24. 0.7
  25. 10.17
  26. 7.66
  27. 6.28
  28. 13.04
  29. 0.62
  30. 0.048
  31. 30
  32. 40
  33. 0.064
  34. 0.3
  35. 4.47
  36. 7.96
  37. 0.086
  38. 14.52
  39. 14.23
  40. 15.04

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