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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 621 · 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.What is the value of the digit 3 in 63.751? (a) 0.03 (b) 3 (c) 0.3 (d) 30
  2. 2.Which is the greatest: 0.46, 0.063, 0.4, 0.316? (a) 0.46 (b) 0.063 (c) 0.4 (d) 0.316
  3. 3.3.36 + 9.2 = ? (a) 12.66 (b) 4.28 (c) 12.46 (d) 12.56
  4. 4.6.24 + 2.7 = ? (a) 9.04 (b) 6.51 (c) 8.94 (d) 8.84
  5. 5.Which is the greatest: 0.079, 0.74, 0.7, 0.632? (a) 0.079 (b) 0.74 (c) 0.7 (d) 0.632
  6. 6.2.21 + 4.5 = ? (a) 6.81 (b) 6.71 (c) 6.61 (d) 2.66
  7. 7.What is the value of the digit 6 in 46.123? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  8. 8.Which is the smallest: 0.595, 0.6, 0.66, 0.095? (a) 0.595 (b) 0.6 (c) 0.66 (d) 0.095
  9. 9.What is the value of the digit 1 in 81.359? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  10. 10.Which is the smallest: 0.197, 0.2, 0.053, 0.24? (a) 0.197 (b) 0.2 (c) 0.053 (d) 0.24
  11. 11.What is the value of the digit 7 in 85.672? (a) 0.7 (b) 0.007 (c) 7 (d) 0.07
  12. 12.1.05 + 3.8 = ? (a) 4.85 (b) 4.95 (c) 1.43 (d) 4.75
  13. 13.Which is the smallest: 0.8, 0.83, 0.743, 0.092? (a) 0.8 (b) 0.83 (c) 0.743 (d) 0.092
  14. 14.What is the value of the digit 5 in 24.365? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  15. 15.8.59 + 3.4 = ? (a) 12.09 (b) 8.93 (c) 11.99 (d) 11.89
  16. 16.3.91 + 7.4 = ? (a) 11.41 (b) 11.31 (c) 11.21 (d) 4.65
  17. 17.2.42 + 4.1 = ? (a) 2.83 (b) 6.62 (c) 6.42 (d) 6.52
  18. 18.Which is the greatest: 0.44, 0.383, 0.045, 0.4? (a) 0.44 (b) 0.383 (c) 0.045 (d) 0.4
  19. 19.1.91 + 9.3 = ? (a) 11.11 (b) 2.84 (c) 11.21 (d) 11.31
  20. 20.Which is the greatest: 0.48, 0.342, 0.058, 0.4? (a) 0.48 (b) 0.342 (c) 0.058 (d) 0.4
  21. 21.What is the value of the digit 7 in 97.421? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  22. 22.7.25 + 3.1 = ? (a) 7.56 (b) 10.45 (c) 10.35 (d) 10.25
  23. 23.What is the value of the digit 2 in 17.432? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  24. 24.What is the value of the digit 5 in 73.598? (a) 5 (b) 0.05 (c) 0.005 (d) 0.5
  25. 25.Which is the smallest: 0.535, 0.064, 0.62, 0.6? (a) 0.535 (b) 0.064 (c) 0.62 (d) 0.6
  26. 26.2.25 + 9.3 = ? (a) 3.18 (b) 11.55 (c) 11.45 (d) 11.65
  27. 27.What is the value of the digit 6 in 26.415? (a) 0.6 (b) 60 (c) 6 (d) 0.06
  28. 28.What is the value of the digit 4 in 42.389? (a) 0.4 (b) 0.04 (c) 40 (d) 4
  29. 29.Which is the greatest: 0.3, 0.017, 0.271, 0.32? (a) 0.3 (b) 0.017 (c) 0.271 (d) 0.32
  30. 30.What is the value of the digit 7 in 91.578? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  31. 31.Which is the greatest: 0.089, 0.2, 0.28, 0.179? (a) 0.089 (b) 0.2 (c) 0.28 (d) 0.179
  32. 32.Which is the greatest: 0.077, 0.549, 0.6, 0.61? (a) 0.077 (b) 0.549 (c) 0.6 (d) 0.61
  33. 33.9.64 + 9.5 = ? (a) 19.24 (b) 10.59 (c) 19.14 (d) 19.04
  34. 34.1.84 + 5.8 = ? (a) 7.74 (b) 7.54 (c) 7.64 (d) 2.42
  35. 35.What is the value of the digit 3 in 31.654? (a) 3 (b) 0.03 (c) 30 (d) 0.3
  36. 36.Which is the greatest: 0.7, 0.063, 0.75, 0.689? (a) 0.7 (b) 0.063 (c) 0.75 (d) 0.689
  37. 37.What is the value of the digit 5 in 92.458? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005
  38. 38.Which is the smallest: 0.3, 0.39, 0.031, 0.252? (a) 0.3 (b) 0.39 (c) 0.031 (d) 0.252
  39. 39.6.97 + 4.5 = ? (a) 11.37 (b) 7.42 (c) 11.57 (d) 11.47
  40. 40.2.71 + 7.2 = ? (a) 10.01 (b) 3.43 (c) 9.91 (d) 9.81

Answer key

  1. 3
  2. 0.46
  3. 12.56
  4. 8.94
  5. 0.74
  6. 6.71
  7. 6
  8. 0.095
  9. 1
  10. 0.053
  11. 0.07
  12. 4.85
  13. 0.092
  14. 0.005
  15. 11.99
  16. 11.31
  17. 6.52
  18. 0.44
  19. 11.21
  20. 0.48
  21. 7
  22. 10.35
  23. 0.002
  24. 0.5
  25. 0.064
  26. 11.55
  27. 6
  28. 40
  29. 0.32
  30. 0.07
  31. 0.28
  32. 0.61
  33. 19.14
  34. 7.64
  35. 30
  36. 0.75
  37. 0.05
  38. 0.031
  39. 11.47
  40. 9.91

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