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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 89 · 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 5 in 59.374? (a) 50 (b) 0.5 (c) 0.05 (d) 5
  2. 2.Which is the smallest: 0.031, 0.7, 0.75, 0.619? (a) 0.031 (b) 0.7 (c) 0.75 (d) 0.619
  3. 3.Which is the greatest: 0.6, 0.061, 0.515, 0.68? (a) 0.6 (b) 0.061 (c) 0.515 (d) 0.68
  4. 4.Which is the greatest: 0.055, 0.4, 0.388, 0.46? (a) 0.055 (b) 0.4 (c) 0.388 (d) 0.46
  5. 5.6.69 + 7.6 = ? (a) 7.45 (b) 14.39 (c) 14.29 (d) 14.19
  6. 6.7.75 + 8.4 = ? (a) 16.25 (b) 16.05 (c) 8.59 (d) 16.15
  7. 7.9.82 + 3.8 = ? (a) 10.2 (b) 13.52 (c) 13.62 (d) 13.72
  8. 8.What is the value of the digit 1 in 73.581? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  9. 9.Which is the greatest: 0.382, 0.4, 0.41, 0.014? (a) 0.382 (b) 0.4 (c) 0.41 (d) 0.014
  10. 10.What is the value of the digit 2 in 28.579? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  11. 11.8.79 + 4.6 = ? (a) 9.25 (b) 13.49 (c) 13.39 (d) 13.29
  12. 12.3.55 + 2.8 = ? (a) 6.45 (b) 3.83 (c) 6.35 (d) 6.25
  13. 13.Which is the smallest: 0.084, 0.218, 0.36, 0.3? (a) 0.084 (b) 0.218 (c) 0.36 (d) 0.3
  14. 14.3.83 + 9.6 = ? (a) 13.43 (b) 13.53 (c) 4.79 (d) 13.33
  15. 15.3.15 + 1.5 = ? (a) 3.3 (b) 4.65 (c) 4.75 (d) 4.55
  16. 16.What is the value of the digit 2 in 19.258? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  17. 17.Which is the greatest: 0.042, 0.4, 0.41, 0.372? (a) 0.042 (b) 0.4 (c) 0.41 (d) 0.372
  18. 18.7.61 + 2.8 = ? (a) 7.89 (b) 10.31 (c) 10.51 (d) 10.41
  19. 19.4.42 + 4.4 = ? (a) 8.72 (b) 8.82 (c) 8.92 (d) 4.86
  20. 20.What is the value of the digit 9 in 13.796? (a) 9 (b) 0.09 (c) 0.009 (d) 0.9
  21. 21.Which is the greatest: 0.41, 0.334, 0.4, 0.076? (a) 0.41 (b) 0.334 (c) 0.4 (d) 0.076
  22. 22.1.21 + 2.3 = ? (a) 3.41 (b) 1.44 (c) 3.61 (d) 3.51
  23. 23.4.12 + 5.9 = ? (a) 4.71 (b) 9.92 (c) 10.02 (d) 10.12
  24. 24.Which is the greatest: 0.84, 0.8, 0.011, 0.755? (a) 0.84 (b) 0.8 (c) 0.011 (d) 0.755
  25. 25.What is the value of the digit 2 in 31.542? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  26. 26.What is the value of the digit 8 in 51.682? (a) 0.8 (b) 8 (c) 0.008 (d) 0.08
  27. 27.5.73 + 2.1 = ? (a) 7.73 (b) 7.93 (c) 5.94 (d) 7.83
  28. 28.What is the value of the digit 3 in 32.158? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  29. 29.3.84 + 4.1 = ? (a) 7.94 (b) 4.25 (c) 8.04 (d) 7.84
  30. 30.Which is the smallest: 0.69, 0.515, 0.6, 0.023? (a) 0.69 (b) 0.515 (c) 0.6 (d) 0.023
  31. 31.Which is the smallest: 0.173, 0.28, 0.029, 0.2? (a) 0.173 (b) 0.28 (c) 0.029 (d) 0.2
  32. 32.What is the value of the digit 4 in 37.964? (a) 4 (b) 0.04 (c) 0.004 (d) 0.4
  33. 33.Which is the greatest: 0.294, 0.38, 0.058, 0.3? (a) 0.294 (b) 0.38 (c) 0.058 (d) 0.3
  34. 34.3.41 + 3.8 = ? (a) 7.31 (b) 7.21 (c) 7.11 (d) 3.79
  35. 35.6.55 + 1.3 = ? (a) 7.85 (b) 7.75 (c) 7.95 (d) 6.68
  36. 36.Which is the greatest: 0.7, 0.093, 0.76, 0.697? (a) 0.7 (b) 0.093 (c) 0.76 (d) 0.697
  37. 37.What is the value of the digit 9 in 12.859? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  38. 38.What is the value of the digit 8 in 48.159? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  39. 39.What is the value of the digit 3 in 36.914? (a) 3 (b) 0.03 (c) 30 (d) 0.3
  40. 40.Which is the smallest: 0.091, 0.243, 0.32, 0.3? (a) 0.091 (b) 0.243 (c) 0.32 (d) 0.3

Answer key

  1. 50
  2. 0.031
  3. 0.68
  4. 0.46
  5. 14.29
  6. 16.15
  7. 13.62
  8. 0.001
  9. 0.41
  10. 20
  11. 13.39
  12. 6.35
  13. 0.084
  14. 13.43
  15. 4.65
  16. 0.2
  17. 0.41
  18. 10.41
  19. 8.82
  20. 0.09
  21. 0.41
  22. 3.51
  23. 10.02
  24. 0.84
  25. 0.002
  26. 0.08
  27. 7.83
  28. 30
  29. 7.94
  30. 0.023
  31. 0.029
  32. 0.004
  33. 0.38
  34. 7.21
  35. 7.85
  36. 0.76
  37. 0.009
  38. 8
  39. 30
  40. 0.091

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