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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 262 · 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. 1.2.02 + 5.8 = ? (a) 7.72 (b) 2.6 (c) 7.82 (d) 7.92
  2. 2.7.41 + 4.6 = ? (a) 12.11 (b) 11.91 (c) 7.87 (d) 12.01
  3. 3.What is the value of the digit 9 in 19.274? (a) 90 (b) 0.9 (c) 9 (d) 0.09
  4. 4.Which is the greatest: 0.616, 0.7, 0.79, 0.031? (a) 0.616 (b) 0.7 (c) 0.79 (d) 0.031
  5. 5.Which is the smallest: 0.68, 0.6, 0.019, 0.594? (a) 0.68 (b) 0.6 (c) 0.019 (d) 0.594
  6. 6.What is the value of the digit 6 in 19.642? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  7. 7.Which is the greatest: 0.77, 0.7, 0.671, 0.052? (a) 0.77 (b) 0.7 (c) 0.671 (d) 0.052
  8. 8.8.49 + 2.2 = ? (a) 10.59 (b) 10.69 (c) 8.71 (d) 10.79
  9. 9.6.01 + 5.9 = ? (a) 11.91 (b) 6.6 (c) 11.81 (d) 12.01
  10. 10.5.41 + 1.4 = ? (a) 6.91 (b) 6.81 (c) 5.55 (d) 6.71
  11. 11.2.74 + 2.5 = ? (a) 5.34 (b) 5.24 (c) 2.99 (d) 5.14
  12. 12.What is the value of the digit 5 in 25.847? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  13. 13.1.56 + 8.1 = ? (a) 9.56 (b) 9.66 (c) 2.37 (d) 9.76
  14. 14.Which is the smallest: 0.464, 0.056, 0.52, 0.5? (a) 0.464 (b) 0.056 (c) 0.52 (d) 0.5
  15. 15.What is the value of the digit 3 in 91.327? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  16. 16.5.71 + 1.8 = ? (a) 5.89 (b) 7.41 (c) 7.61 (d) 7.51
  17. 17.Which is the greatest: 0.011, 0.3, 0.38, 0.259? (a) 0.011 (b) 0.3 (c) 0.38 (d) 0.259
  18. 18.Which is the smallest: 0.35, 0.033, 0.3, 0.216? (a) 0.35 (b) 0.033 (c) 0.3 (d) 0.216
  19. 19.What is the value of the digit 2 in 75.942? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  20. 20.What is the value of the digit 9 in 31.957? (a) 0.009 (b) 0.09 (c) 9 (d) 0.9
  21. 21.Which is the smallest: 0.73, 0.689, 0.084, 0.7? (a) 0.73 (b) 0.689 (c) 0.084 (d) 0.7
  22. 22.1.19 + 1.5 = ? (a) 2.69 (b) 2.59 (c) 1.34 (d) 2.79
  23. 23.5.33 + 4.5 = ? (a) 9.93 (b) 5.78 (c) 9.83 (d) 9.73
  24. 24.4.95 + 9.2 = ? (a) 14.25 (b) 5.87 (c) 14.05 (d) 14.15
  25. 25.What is the value of the digit 3 in 86.723? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  26. 26.Which is the smallest: 0.54, 0.029, 0.497, 0.5? (a) 0.54 (b) 0.029 (c) 0.497 (d) 0.5
  27. 27.5.65 + 1.4 = ? (a) 5.79 (b) 6.95 (c) 7.15 (d) 7.05
  28. 28.What is the value of the digit 7 in 48.297? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  29. 29.1.31 + 5.2 = ? (a) 6.61 (b) 6.51 (c) 1.83 (d) 6.41
  30. 30.9.42 + 4.8 = ? (a) 14.12 (b) 9.9 (c) 14.32 (d) 14.22
  31. 31.What is the value of the digit 9 in 29.154? (a) 9 (b) 0.09 (c) 0.9 (d) 90
  32. 32.6.18 + 1.5 = ? (a) 6.33 (b) 7.58 (c) 7.78 (d) 7.68
  33. 33.4.29 + 4.7 = ? (a) 8.89 (b) 9.09 (c) 4.76 (d) 8.99
  34. 34.8.78 + 7.4 = ? (a) 16.28 (b) 9.52 (c) 16.08 (d) 16.18
  35. 35.Which is the smallest: 0.533, 0.6, 0.044, 0.66? (a) 0.533 (b) 0.6 (c) 0.044 (d) 0.66
  36. 36.Which is the greatest: 0.5, 0.452, 0.58, 0.083? (a) 0.5 (b) 0.452 (c) 0.58 (d) 0.083
  37. 37.9.59 + 2.8 = ? (a) 12.29 (b) 9.87 (c) 12.39 (d) 12.49
  38. 38.What is the value of the digit 7 in 32.867? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  39. 39.Which is the smallest: 0.431, 0.5, 0.023, 0.58? (a) 0.431 (b) 0.5 (c) 0.023 (d) 0.58
  40. 40.Which is the greatest: 0.6, 0.597, 0.074, 0.66? (a) 0.6 (b) 0.597 (c) 0.074 (d) 0.66

Answer key

  1. 7.82
  2. 12.01
  3. 9
  4. 0.79
  5. 0.019
  6. 0.6
  7. 0.77
  8. 10.69
  9. 11.91
  10. 6.81
  11. 5.24
  12. 5
  13. 9.66
  14. 0.056
  15. 0.3
  16. 7.51
  17. 0.38
  18. 0.033
  19. 0.002
  20. 0.9
  21. 0.084
  22. 2.69
  23. 9.83
  24. 14.15
  25. 0.003
  26. 0.029
  27. 7.05
  28. 0.007
  29. 6.51
  30. 14.22
  31. 9
  32. 7.68
  33. 8.99
  34. 16.18
  35. 0.044
  36. 0.58
  37. 12.39
  38. 0.007
  39. 0.023
  40. 0.66

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