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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 249 · 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. 1.8.68 + 5.4 = ? (a) 9.22 (b) 14.08 (c) 13.98 (d) 14.18
  2. 2.What is the value of the digit 3 in 34.512? (a) 3 (b) 0.03 (c) 0.3 (d) 30
  3. 3.Which is the greatest: 0.049, 0.162, 0.2, 0.28? (a) 0.049 (b) 0.162 (c) 0.2 (d) 0.28
  4. 4.9.21 + 3.3 = ? (a) 12.61 (b) 12.51 (c) 9.54 (d) 12.41
  5. 5.Which is the greatest: 0.247, 0.056, 0.3, 0.32? (a) 0.247 (b) 0.056 (c) 0.3 (d) 0.32
  6. 6.What is the value of the digit 8 in 61.238? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  7. 7.What is the value of the digit 3 in 31.946? (a) 30 (b) 0.03 (c) 3 (d) 0.3
  8. 8.Which is the greatest: 0.086, 0.7, 0.72, 0.678? (a) 0.086 (b) 0.7 (c) 0.72 (d) 0.678
  9. 9.What is the value of the digit 9 in 92.513? (a) 9 (b) 90 (c) 0.9 (d) 0.09
  10. 10.Which is the greatest: 0.59, 0.044, 0.436, 0.5? (a) 0.59 (b) 0.044 (c) 0.436 (d) 0.5
  11. 11.8.35 + 3.3 = ? (a) 8.68 (b) 11.75 (c) 11.65 (d) 11.55
  12. 12.6.11 + 1.3 = ? (a) 7.51 (b) 7.31 (c) 6.24 (d) 7.41
  13. 13.1.28 + 1.3 = ? (a) 2.48 (b) 2.58 (c) 1.41 (d) 2.68
  14. 14.What is the value of the digit 5 in 35.186? (a) 0.05 (b) 0.5 (c) 5 (d) 50
  15. 15.3.04 + 2.7 = ? (a) 5.74 (b) 5.64 (c) 5.84 (d) 3.31
  16. 16.Which is the greatest: 0.037, 0.3, 0.35, 0.293? (a) 0.037 (b) 0.3 (c) 0.35 (d) 0.293
  17. 17.5.23 + 8.7 = ? (a) 14.03 (b) 13.93 (c) 13.83 (d) 6.1
  18. 18.What is the value of the digit 4 in 25.394? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  19. 19.3.16 + 2.2 = ? (a) 5.26 (b) 5.46 (c) 3.38 (d) 5.36
  20. 20.5.01 + 5.3 = ? (a) 10.31 (b) 5.54 (c) 10.41 (d) 10.21
  21. 21.9.21 + 4.5 = ? (a) 13.61 (b) 13.81 (c) 9.66 (d) 13.71
  22. 22.2.51 + 4.8 = ? (a) 7.21 (b) 7.41 (c) 7.31 (d) 2.99
  23. 23.Which is the smallest: 0.214, 0.087, 0.3, 0.35? (a) 0.214 (b) 0.087 (c) 0.3 (d) 0.35
  24. 24.What is the value of the digit 2 in 71.423? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  25. 25.5.11 + 6.1 = ? (a) 11.31 (b) 5.72 (c) 11.11 (d) 11.21
  26. 26.9.47 + 2.5 = ? (a) 11.87 (b) 12.07 (c) 9.72 (d) 11.97
  27. 27.8.15 + 6.1 = ? (a) 14.15 (b) 14.25 (c) 8.76 (d) 14.35
  28. 28.3.04 + 9.8 = ? (a) 12.84 (b) 12.74 (c) 4.02 (d) 12.94
  29. 29.What is the value of the digit 4 in 93.468? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  30. 30.1.14 + 5.4 = ? (a) 6.44 (b) 6.54 (c) 1.68 (d) 6.64
  31. 31.Which is the smallest: 0.097, 0.64, 0.6, 0.568? (a) 0.097 (b) 0.64 (c) 0.6 (d) 0.568
  32. 32.1.09 + 4.7 = ? (a) 5.89 (b) 5.69 (c) 5.79 (d) 1.56
  33. 33.Which is the greatest: 0.48, 0.4, 0.359, 0.042? (a) 0.48 (b) 0.4 (c) 0.359 (d) 0.042
  34. 34.Which is the greatest: 0.32, 0.3, 0.224, 0.069? (a) 0.32 (b) 0.3 (c) 0.224 (d) 0.069
  35. 35.4.44 + 9.7 = ? (a) 14.24 (b) 14.04 (c) 14.14 (d) 5.41
  36. 36.What is the value of the digit 4 in 95.241? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  37. 37.Which is the greatest: 0.56, 0.5, 0.018, 0.414? (a) 0.56 (b) 0.5 (c) 0.018 (d) 0.414
  38. 38.Which is the greatest: 0.784, 0.013, 0.8, 0.82? (a) 0.784 (b) 0.013 (c) 0.8 (d) 0.82
  39. 39.Which is the greatest: 0.048, 0.43, 0.4, 0.321? (a) 0.048 (b) 0.43 (c) 0.4 (d) 0.321
  40. 40.6.85 + 8.2 = ? (a) 7.67 (b) 14.95 (c) 15.05 (d) 15.15

Answer key

  1. 14.08
  2. 30
  3. 0.28
  4. 12.51
  5. 0.32
  6. 0.008
  7. 30
  8. 0.72
  9. 90
  10. 0.59
  11. 11.65
  12. 7.41
  13. 2.58
  14. 5
  15. 5.74
  16. 0.35
  17. 13.93
  18. 0.004
  19. 5.36
  20. 10.31
  21. 13.71
  22. 7.31
  23. 0.087
  24. 0.02
  25. 11.21
  26. 11.97
  27. 14.25
  28. 12.84
  29. 0.4
  30. 6.54
  31. 0.097
  32. 5.79
  33. 0.48
  34. 0.32
  35. 14.14
  36. 0.04
  37. 0.56
  38. 0.82
  39. 0.43
  40. 15.05

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