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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 24 · 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 9 in 53.296? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  2. 2.What is the value of the digit 6 in 32.876? (a) 0.06 (b) 6 (c) 0.006 (d) 0.6
  3. 3.6.65 + 7.6 = ? (a) 14.25 (b) 7.41 (c) 14.15 (d) 14.35
  4. 4.What is the value of the digit 1 in 23.158? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  5. 5.Which is the smallest: 0.7, 0.051, 0.73, 0.614? (a) 0.7 (b) 0.051 (c) 0.73 (d) 0.614
  6. 6.2.64 + 8.1 = ? (a) 10.74 (b) 10.64 (c) 3.45 (d) 10.84
  7. 7.Which is the greatest: 0.055, 0.41, 0.4, 0.367? (a) 0.055 (b) 0.41 (c) 0.4 (d) 0.367
  8. 8.4.81 + 8.5 = ? (a) 5.66 (b) 13.21 (c) 13.41 (d) 13.31
  9. 9.1.16 + 4.3 = ? (a) 5.56 (b) 1.59 (c) 5.46 (d) 5.36
  10. 10.7.65 + 2.1 = ? (a) 9.75 (b) 9.65 (c) 9.85 (d) 7.86
  11. 11.9.65 + 3.1 = ? (a) 9.96 (b) 12.85 (c) 12.75 (d) 12.65
  12. 12.1.77 + 5.1 = ? (a) 6.77 (b) 6.87 (c) 6.97 (d) 2.28
  13. 13.4.82 + 9.6 = ? (a) 5.78 (b) 14.52 (c) 14.42 (d) 14.32
  14. 14.2.43 + 5.3 = ? (a) 2.96 (b) 7.73 (c) 7.63 (d) 7.83
  15. 15.What is the value of the digit 1 in 42.169? (a) 1 (b) 0.01 (c) 0.1 (d) 0.001
  16. 16.Which is the greatest: 0.5, 0.55, 0.446, 0.031? (a) 0.5 (b) 0.55 (c) 0.446 (d) 0.031
  17. 17.What is the value of the digit 2 in 42.598? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  18. 18.What is the value of the digit 6 in 62.349? (a) 0.06 (b) 60 (c) 0.6 (d) 6
  19. 19.What is the value of the digit 9 in 97.623? (a) 0.9 (b) 90 (c) 9 (d) 0.09
  20. 20.What is the value of the digit 4 in 46.279? (a) 0.04 (b) 40 (c) 4 (d) 0.4
  21. 21.Which is the smallest: 0.089, 0.741, 0.81, 0.8? (a) 0.089 (b) 0.741 (c) 0.81 (d) 0.8
  22. 22.7.72 + 2.7 = ? (a) 10.42 (b) 7.99 (c) 10.52 (d) 10.32
  23. 23.8.61 + 7.5 = ? (a) 16.21 (b) 16.11 (c) 16.01 (d) 9.36
  24. 24.1.19 + 8.7 = ? (a) 2.06 (b) 9.89 (c) 9.99 (d) 9.79
  25. 25.6.49 + 8.1 = ? (a) 7.3 (b) 14.49 (c) 14.69 (d) 14.59
  26. 26.Which is the greatest: 0.019, 0.43, 0.319, 0.4? (a) 0.019 (b) 0.43 (c) 0.319 (d) 0.4
  27. 27.6.75 + 8.6 = ? (a) 15.45 (b) 15.35 (c) 15.25 (d) 7.61
  28. 28.What is the value of the digit 2 in 72.495? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  29. 29.2.03 + 4.6 = ? (a) 6.53 (b) 6.73 (c) 6.63 (d) 2.49
  30. 30.Which is the smallest: 0.069, 0.3, 0.263, 0.32? (a) 0.069 (b) 0.3 (c) 0.263 (d) 0.32
  31. 31.8.38 + 6.1 = ? (a) 14.38 (b) 14.58 (c) 14.48 (d) 8.99
  32. 32.What is the value of the digit 1 in 84.531? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  33. 33.What is the value of the digit 1 in 62.391? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  34. 34.What is the value of the digit 4 in 81.425? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4
  35. 35.6.88 + 2.4 = ? (a) 7.12 (b) 9.18 (c) 9.28 (d) 9.38
  36. 36.Which is the smallest: 0.6, 0.558, 0.61, 0.061? (a) 0.6 (b) 0.558 (c) 0.61 (d) 0.061
  37. 37.5.61 + 6.3 = ? (a) 11.81 (b) 11.91 (c) 12.01 (d) 6.24
  38. 38.Which is the smallest: 0.678, 0.093, 0.7, 0.73? (a) 0.678 (b) 0.093 (c) 0.7 (d) 0.73
  39. 39.Which is the smallest: 0.045, 0.73, 0.671, 0.7? (a) 0.045 (b) 0.73 (c) 0.671 (d) 0.7
  40. 40.Which is the smallest: 0.779, 0.8, 0.071, 0.83? (a) 0.779 (b) 0.8 (c) 0.071 (d) 0.83

Answer key

  1. 0.09
  2. 0.006
  3. 14.25
  4. 0.1
  5. 0.051
  6. 10.74
  7. 0.41
  8. 13.31
  9. 5.46
  10. 9.75
  11. 12.75
  12. 6.87
  13. 14.42
  14. 7.73
  15. 0.1
  16. 0.55
  17. 2
  18. 60
  19. 90
  20. 40
  21. 0.089
  22. 10.42
  23. 16.11
  24. 9.89
  25. 14.59
  26. 0.43
  27. 15.35
  28. 2
  29. 6.63
  30. 0.069
  31. 14.48
  32. 0.001
  33. 0.001
  34. 0.4
  35. 9.28
  36. 0.061
  37. 11.91
  38. 0.093
  39. 0.045
  40. 0.071

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