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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 177 · 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: 0.5, 0.56, 0.441, 0.036? (a) 0.5 (b) 0.56 (c) 0.441 (d) 0.036
  2. 2.Which is the greatest: 0.226, 0.024, 0.33, 0.3? (a) 0.226 (b) 0.024 (c) 0.33 (d) 0.3
  3. 3.1.73 + 8.1 = ? (a) 2.54 (b) 9.73 (c) 9.83 (d) 9.93
  4. 4.9.88 + 5.6 = ? (a) 10.44 (b) 15.58 (c) 15.38 (d) 15.48
  5. 5.Which is the smallest: 0.65, 0.6, 0.042, 0.536? (a) 0.65 (b) 0.6 (c) 0.042 (d) 0.536
  6. 6.1.19 + 1.2 = ? (a) 2.29 (b) 2.49 (c) 2.39 (d) 1.31
  7. 7.3.91 + 6.1 = ? (a) 10.01 (b) 4.52 (c) 9.91 (d) 10.11
  8. 8.Which is the greatest: 0.031, 0.526, 0.61, 0.6? (a) 0.031 (b) 0.526 (c) 0.61 (d) 0.6
  9. 9.Which is the greatest: 0.53, 0.437, 0.057, 0.5? (a) 0.53 (b) 0.437 (c) 0.057 (d) 0.5
  10. 10.What is the value of the digit 1 in 49.172? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  11. 11.3.21 + 3.1 = ? (a) 6.21 (b) 6.41 (c) 3.52 (d) 6.31
  12. 12.Which is the greatest: 0.6, 0.083, 0.66, 0.584? (a) 0.6 (b) 0.083 (c) 0.66 (d) 0.584
  13. 13.What is the value of the digit 9 in 89.743? (a) 90 (b) 0.9 (c) 9 (d) 0.09
  14. 14.Which is the smallest: 0.2, 0.194, 0.012, 0.24? (a) 0.2 (b) 0.194 (c) 0.012 (d) 0.24
  15. 15.Which is the smallest: 0.024, 0.44, 0.4, 0.311? (a) 0.024 (b) 0.44 (c) 0.4 (d) 0.311
  16. 16.5.44 + 6.6 = ? (a) 6.1 (b) 12.14 (c) 11.94 (d) 12.04
  17. 17.What is the value of the digit 7 in 26.795? (a) 0.007 (b) 0.07 (c) 7 (d) 0.7
  18. 18.What is the value of the digit 5 in 35.712? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  19. 19.What is the value of the digit 8 in 36.418? (a) 8 (b) 0.8 (c) 0.08 (d) 0.008
  20. 20.What is the value of the digit 8 in 85.149? (a) 0.8 (b) 80 (c) 8 (d) 0.08
  21. 21.Which is the smallest: 0.087, 0.68, 0.522, 0.6? (a) 0.087 (b) 0.68 (c) 0.522 (d) 0.6
  22. 22.1.11 + 1.8 = ? (a) 1.29 (b) 2.81 (c) 2.91 (d) 3.01
  23. 23.5.25 + 3.6 = ? (a) 8.85 (b) 8.95 (c) 5.61 (d) 8.75
  24. 24.Which is the greatest: 0.434, 0.55, 0.038, 0.5? (a) 0.434 (b) 0.55 (c) 0.038 (d) 0.5
  25. 25.5.36 + 7.5 = ? (a) 12.76 (b) 6.11 (c) 12.86 (d) 12.96
  26. 26.What is the value of the digit 2 in 82.769? (a) 20 (b) 2 (c) 0.2 (d) 0.02
  27. 27.Which is the greatest: 0.096, 0.7, 0.679, 0.75? (a) 0.096 (b) 0.7 (c) 0.679 (d) 0.75
  28. 28.6.33 + 9.4 = ? (a) 15.83 (b) 7.27 (c) 15.63 (d) 15.73
  29. 29.2.03 + 3.9 = ? (a) 5.83 (b) 5.93 (c) 6.03 (d) 2.42
  30. 30.What is the value of the digit 5 in 51.973? (a) 50 (b) 0.5 (c) 0.05 (d) 5
  31. 31.What is the value of the digit 4 in 21.497? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  32. 32.9.21 + 3.6 = ? (a) 9.57 (b) 12.81 (c) 12.71 (d) 12.91
  33. 33.9.79 + 5.7 = ? (a) 15.39 (b) 10.36 (c) 15.59 (d) 15.49
  34. 34.What is the value of the digit 1 in 49.821? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  35. 35.Which is the smallest: 0.74, 0.7, 0.635, 0.083? (a) 0.74 (b) 0.7 (c) 0.635 (d) 0.083
  36. 36.What is the value of the digit 1 in 52.416? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  37. 37.What is the value of the digit 2 in 57.298? (a) 0.002 (b) 0.02 (c) 0.2 (d) 2
  38. 38.3.48 + 1.2 = ? (a) 4.78 (b) 3.6 (c) 4.58 (d) 4.68
  39. 39.3.82 + 3.7 = ? (a) 7.42 (b) 4.19 (c) 7.62 (d) 7.52
  40. 40.What is the value of the digit 3 in 82.139? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3

Answer key

  1. 0.56
  2. 0.33
  3. 9.83
  4. 15.48
  5. 0.042
  6. 2.39
  7. 10.01
  8. 0.61
  9. 0.53
  10. 0.1
  11. 6.31
  12. 0.66
  13. 9
  14. 0.012
  15. 0.024
  16. 12.04
  17. 0.7
  18. 5
  19. 0.008
  20. 80
  21. 0.087
  22. 2.91
  23. 8.85
  24. 0.55
  25. 12.86
  26. 2
  27. 0.75
  28. 15.73
  29. 5.93
  30. 50
  31. 0.4
  32. 12.81
  33. 15.49
  34. 0.001
  35. 0.083
  36. 0.01
  37. 0.2
  38. 4.68
  39. 7.52
  40. 0.03

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