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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 185 · 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 1 in 73.914? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  2. 2.Which is the smallest: 0.7, 0.084, 0.73, 0.677? (a) 0.7 (b) 0.084 (c) 0.73 (d) 0.677
  3. 3.9.51 + 3.8 = ? (a) 13.41 (b) 13.21 (c) 13.31 (d) 9.89
  4. 4.Which is the smallest: 0.21, 0.068, 0.116, 0.2? (a) 0.21 (b) 0.068 (c) 0.116 (d) 0.2
  5. 5.6.38 + 4.5 = ? (a) 10.88 (b) 10.98 (c) 10.78 (d) 6.83
  6. 6.What is the value of the digit 5 in 57.461? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  7. 7.Which is the smallest: 0.015, 0.445, 0.58, 0.5? (a) 0.015 (b) 0.445 (c) 0.58 (d) 0.5
  8. 8.Which is the smallest: 0.012, 0.43, 0.4, 0.368? (a) 0.012 (b) 0.43 (c) 0.4 (d) 0.368
  9. 9.What is the value of the digit 9 in 53.912? (a) 0.09 (b) 9 (c) 0.009 (d) 0.9
  10. 10.8.85 + 5.1 = ? (a) 9.36 (b) 13.95 (c) 14.05 (d) 13.85
  11. 11.5.61 + 3.3 = ? (a) 8.81 (b) 5.94 (c) 8.91 (d) 9.01
  12. 12.Which is the smallest: 0.029, 0.8, 0.85, 0.725? (a) 0.029 (b) 0.8 (c) 0.85 (d) 0.725
  13. 13.Which is the greatest: 0.7, 0.73, 0.053, 0.676? (a) 0.7 (b) 0.73 (c) 0.053 (d) 0.676
  14. 14.7.78 + 2.4 = ? (a) 8.02 (b) 10.08 (c) 10.28 (d) 10.18
  15. 15.Which is the greatest: 0.035, 0.2, 0.134, 0.25? (a) 0.035 (b) 0.2 (c) 0.134 (d) 0.25
  16. 16.Which is the smallest: 0.4, 0.311, 0.098, 0.41? (a) 0.4 (b) 0.311 (c) 0.098 (d) 0.41
  17. 17.What is the value of the digit 4 in 84.169? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  18. 18.Which is the smallest: 0.218, 0.085, 0.3, 0.33? (a) 0.218 (b) 0.085 (c) 0.3 (d) 0.33
  19. 19.2.72 + 4.4 = ? (a) 3.16 (b) 7.22 (c) 7.02 (d) 7.12
  20. 20.Which is the smallest: 0.028, 0.7, 0.79, 0.695? (a) 0.028 (b) 0.7 (c) 0.79 (d) 0.695
  21. 21.What is the value of the digit 4 in 87.246? (a) 0.004 (b) 0.4 (c) 4 (d) 0.04
  22. 22.What is the value of the digit 1 in 68.415? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  23. 23.8.78 + 2.3 = ? (a) 10.98 (b) 11.08 (c) 11.18 (d) 9.01
  24. 24.8.47 + 2.8 = ? (a) 11.17 (b) 11.37 (c) 11.27 (d) 8.75
  25. 25.Which is the greatest: 0.82, 0.752, 0.066, 0.8? (a) 0.82 (b) 0.752 (c) 0.066 (d) 0.8
  26. 26.What is the value of the digit 3 in 97.836? (a) 0.03 (b) 0.003 (c) 0.3 (d) 3
  27. 27.What is the value of the digit 5 in 25.738? (a) 0.5 (b) 5 (c) 50 (d) 0.05
  28. 28.What is the value of the digit 1 in 38.164? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  29. 29.Which is the greatest: 0.7, 0.617, 0.72, 0.074? (a) 0.7 (b) 0.617 (c) 0.72 (d) 0.074
  30. 30.8.77 + 6.6 = ? (a) 9.43 (b) 15.47 (c) 15.27 (d) 15.37
  31. 31.What is the value of the digit 4 in 13.425? (a) 4 (b) 0.04 (c) 0.004 (d) 0.4
  32. 32.2.45 + 1.1 = ? (a) 3.55 (b) 3.65 (c) 3.45 (d) 2.56
  33. 33.What is the value of the digit 3 in 93.561? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  34. 34.4.56 + 8.1 = ? (a) 12.76 (b) 5.37 (c) 12.66 (d) 12.56
  35. 35.Which is the greatest: 0.89, 0.8, 0.737, 0.022? (a) 0.89 (b) 0.8 (c) 0.737 (d) 0.022
  36. 36.Which is the smallest: 0.717, 0.8, 0.86, 0.061? (a) 0.717 (b) 0.8 (c) 0.86 (d) 0.061
  37. 37.6.11 + 5.9 = ? (a) 11.91 (b) 12.01 (c) 12.11 (d) 6.7
  38. 38.Which is the greatest: 0.376, 0.45, 0.055, 0.4? (a) 0.376 (b) 0.45 (c) 0.055 (d) 0.4
  39. 39.What is the value of the digit 7 in 27.836? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  40. 40.What is the value of the digit 6 in 86.423? (a) 60 (b) 0.6 (c) 0.06 (d) 6

Answer key

  1. 0.01
  2. 0.084
  3. 13.31
  4. 0.068
  5. 10.88
  6. 50
  7. 0.015
  8. 0.012
  9. 0.9
  10. 13.95
  11. 8.91
  12. 0.029
  13. 0.73
  14. 10.18
  15. 0.25
  16. 0.098
  17. 4
  18. 0.085
  19. 7.12
  20. 0.028
  21. 0.04
  22. 0.01
  23. 11.08
  24. 11.27
  25. 0.82
  26. 0.03
  27. 5
  28. 0.1
  29. 0.72
  30. 15.37
  31. 0.4
  32. 3.55
  33. 3
  34. 12.66
  35. 0.89
  36. 0.061
  37. 12.01
  38. 0.45
  39. 7
  40. 6

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