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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 306 · 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: 0.038, 0.33, 0.3, 0.215? (a) 0.038 (b) 0.33 (c) 0.3 (d) 0.215
  2. 2.What is the value of the digit 8 in 98.567? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  3. 3.Which is the greatest: 0.443, 0.52, 0.044, 0.5? (a) 0.443 (b) 0.52 (c) 0.044 (d) 0.5
  4. 4.9.71 + 2.4 = ? (a) 12.11 (b) 12.21 (c) 12.01 (d) 9.95
  5. 5.1.63 + 5.5 = ? (a) 7.03 (b) 7.23 (c) 2.18 (d) 7.13
  6. 6.What is the value of the digit 3 in 86.243? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  7. 7.What is the value of the digit 4 in 52.491? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  8. 8.What is the value of the digit 6 in 56.812? (a) 0.06 (b) 60 (c) 6 (d) 0.6
  9. 9.6.75 + 6.9 = ? (a) 7.44 (b) 13.65 (c) 13.75 (d) 13.55
  10. 10.4.32 + 9.6 = ? (a) 13.82 (b) 5.28 (c) 13.92 (d) 14.02
  11. 11.Which is the greatest: 0.527, 0.059, 0.6, 0.67? (a) 0.527 (b) 0.059 (c) 0.6 (d) 0.67
  12. 12.Which is the smallest: 0.591, 0.089, 0.6, 0.66? (a) 0.591 (b) 0.089 (c) 0.6 (d) 0.66
  13. 13.What is the value of the digit 9 in 96.142? (a) 0.09 (b) 0.9 (c) 90 (d) 9
  14. 14.8.43 + 3.5 = ? (a) 11.93 (b) 12.03 (c) 11.83 (d) 8.78
  15. 15.Which is the greatest: 0.41, 0.4, 0.331, 0.097? (a) 0.41 (b) 0.4 (c) 0.331 (d) 0.097
  16. 16.7.47 + 3.4 = ? (a) 7.81 (b) 10.77 (c) 10.87 (d) 10.97
  17. 17.What is the value of the digit 3 in 73.189? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  18. 18.What is the value of the digit 8 in 49.856? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8
  19. 19.What is the value of the digit 6 in 65.819? (a) 0.06 (b) 60 (c) 6 (d) 0.6
  20. 20.Which is the smallest: 0.315, 0.072, 0.4, 0.43? (a) 0.315 (b) 0.072 (c) 0.4 (d) 0.43
  21. 21.9.78 + 4.7 = ? (a) 14.48 (b) 14.58 (c) 14.38 (d) 10.25
  22. 22.What is the value of the digit 2 in 47.128? (a) 0.2 (b) 0.002 (c) 0.02 (d) 2
  23. 23.What is the value of the digit 5 in 51.273? (a) 5 (b) 0.05 (c) 0.5 (d) 50
  24. 24.4.23 + 5.1 = ? (a) 9.23 (b) 9.43 (c) 9.33 (d) 4.74
  25. 25.6.76 + 2.1 = ? (a) 6.97 (b) 8.76 (c) 8.86 (d) 8.96
  26. 26.What is the value of the digit 7 in 73.281? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  27. 27.Which is the smallest: 0.437, 0.58, 0.018, 0.5? (a) 0.437 (b) 0.58 (c) 0.018 (d) 0.5
  28. 28.What is the value of the digit 9 in 59.368? (a) 0.09 (b) 9 (c) 90 (d) 0.9
  29. 29.Which is the greatest: 0.119, 0.24, 0.2, 0.042? (a) 0.119 (b) 0.24 (c) 0.2 (d) 0.042
  30. 30.Which is the greatest: 0.517, 0.6, 0.058, 0.68? (a) 0.517 (b) 0.6 (c) 0.058 (d) 0.68
  31. 31.1.61 + 8.2 = ? (a) 9.91 (b) 9.71 (c) 9.81 (d) 2.43
  32. 32.What is the value of the digit 1 in 17.586? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  33. 33.What is the value of the digit 3 in 38.564? (a) 0.03 (b) 3 (c) 0.3 (d) 30
  34. 34.6.91 + 4.4 = ? (a) 11.21 (b) 11.41 (c) 11.31 (d) 7.35
  35. 35.5.07 + 3.7 = ? (a) 8.87 (b) 5.44 (c) 8.77 (d) 8.67
  36. 36.Which is the greatest: 0.031, 0.513, 0.64, 0.6? (a) 0.031 (b) 0.513 (c) 0.64 (d) 0.6
  37. 37.4.38 + 1.5 = ? (a) 5.78 (b) 5.88 (c) 4.53 (d) 5.98
  38. 38.What is the value of the digit 1 in 57.814? (a) 0.001 (b) 1 (c) 0.01 (d) 0.1
  39. 39.1.17 + 6.8 = ? (a) 7.87 (b) 1.85 (c) 8.07 (d) 7.97
  40. 40.7.22 + 5.3 = ? (a) 12.62 (b) 7.75 (c) 12.42 (d) 12.52

Answer key

  1. 0.33
  2. 8
  3. 0.52
  4. 12.11
  5. 7.13
  6. 0.003
  7. 0.4
  8. 6
  9. 13.65
  10. 13.92
  11. 0.67
  12. 0.089
  13. 90
  14. 11.93
  15. 0.41
  16. 10.87
  17. 3
  18. 0.8
  19. 60
  20. 0.072
  21. 14.48
  22. 0.02
  23. 50
  24. 9.33
  25. 8.86
  26. 70
  27. 0.018
  28. 9
  29. 0.24
  30. 0.68
  31. 9.81
  32. 10
  33. 30
  34. 11.31
  35. 8.77
  36. 0.64
  37. 5.88
  38. 0.01
  39. 7.97
  40. 12.52

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