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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 997 · 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 29.134? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  2. 2.Which is the greatest: 0.3, 0.091, 0.31, 0.261? (a) 0.3 (b) 0.091 (c) 0.31 (d) 0.261
  3. 3.What is the value of the digit 9 in 91.782? (a) 0.9 (b) 0.09 (c) 9 (d) 90
  4. 4.Which is the smallest: 0.8, 0.88, 0.781, 0.024? (a) 0.8 (b) 0.88 (c) 0.781 (d) 0.024
  5. 5.2.71 + 2.2 = ? (a) 4.81 (b) 4.91 (c) 5.01 (d) 2.93
  6. 6.Which is the greatest: 0.6, 0.69, 0.022, 0.558? (a) 0.6 (b) 0.69 (c) 0.022 (d) 0.558
  7. 7.Which is the smallest: 0.016, 0.87, 0.8, 0.712? (a) 0.016 (b) 0.87 (c) 0.8 (d) 0.712
  8. 8.What is the value of the digit 1 in 81.624? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  9. 9.What is the value of the digit 1 in 19.287? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  10. 10.3.09 + 9.8 = ? (a) 12.89 (b) 12.99 (c) 4.07 (d) 12.79
  11. 11.What is the value of the digit 1 in 39.281? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  12. 12.Which is the greatest: 0.026, 0.28, 0.2, 0.129? (a) 0.026 (b) 0.28 (c) 0.2 (d) 0.129
  13. 13.Which is the greatest: 0.059, 0.2, 0.187, 0.22? (a) 0.059 (b) 0.2 (c) 0.187 (d) 0.22
  14. 14.Which is the smallest: 0.289, 0.063, 0.32, 0.3? (a) 0.289 (b) 0.063 (c) 0.32 (d) 0.3
  15. 15.What is the value of the digit 4 in 42.695? (a) 4 (b) 0.04 (c) 0.4 (d) 40
  16. 16.Which is the greatest: 0.725, 0.8, 0.87, 0.082? (a) 0.725 (b) 0.8 (c) 0.87 (d) 0.082
  17. 17.Which is the smallest: 0.7, 0.013, 0.616, 0.73? (a) 0.7 (b) 0.013 (c) 0.616 (d) 0.73
  18. 18.4.99 + 6.5 = ? (a) 11.59 (b) 11.39 (c) 5.64 (d) 11.49
  19. 19.9.28 + 7.9 = ? (a) 17.28 (b) 17.08 (c) 10.07 (d) 17.18
  20. 20.What is the value of the digit 3 in 57.413? (a) 0.03 (b) 3 (c) 0.003 (d) 0.3
  21. 21.6.62 + 9.4 = ? (a) 7.56 (b) 16.02 (c) 16.12 (d) 15.92
  22. 22.Which is the greatest: 0.072, 0.231, 0.3, 0.35? (a) 0.072 (b) 0.231 (c) 0.3 (d) 0.35
  23. 23.Which is the smallest: 0.036, 0.72, 0.614, 0.7? (a) 0.036 (b) 0.72 (c) 0.614 (d) 0.7
  24. 24.3.89 + 3.6 = ? (a) 4.25 (b) 7.59 (c) 7.39 (d) 7.49
  25. 25.Which is the greatest: 0.693, 0.78, 0.011, 0.7? (a) 0.693 (b) 0.78 (c) 0.011 (d) 0.7
  26. 26.Which is the smallest: 0.6, 0.011, 0.62, 0.517? (a) 0.6 (b) 0.011 (c) 0.62 (d) 0.517
  27. 27.What is the value of the digit 4 in 15.947? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  28. 28.What is the value of the digit 2 in 14.329? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  29. 29.Which is the smallest: 0.61, 0.6, 0.562, 0.078? (a) 0.61 (b) 0.6 (c) 0.562 (d) 0.078
  30. 30.7.37 + 4.1 = ? (a) 11.47 (b) 11.57 (c) 11.37 (d) 7.78
  31. 31.Which is the greatest: 0.7, 0.73, 0.697, 0.015? (a) 0.7 (b) 0.73 (c) 0.697 (d) 0.015
  32. 32.What is the value of the digit 7 in 67.542? (a) 70 (b) 7 (c) 0.7 (d) 0.07
  33. 33.What is the value of the digit 3 in 15.283? (a) 0.3 (b) 0.03 (c) 0.003 (d) 3
  34. 34.4.46 + 4.2 = ? (a) 8.76 (b) 4.88 (c) 8.56 (d) 8.66
  35. 35.What is the value of the digit 4 in 69.475? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  36. 36.8.85 + 9.2 = ? (a) 18.15 (b) 17.95 (c) 9.77 (d) 18.05
  37. 37.What is the value of the digit 6 in 76.329? (a) 60 (b) 6 (c) 0.06 (d) 0.6
  38. 38.What is the value of the digit 5 in 25.137? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  39. 39.What is the value of the digit 1 in 15.342? (a) 0.1 (b) 0.01 (c) 1 (d) 10
  40. 40.Which is the greatest: 0.018, 0.336, 0.42, 0.4? (a) 0.018 (b) 0.336 (c) 0.42 (d) 0.4

Answer key

  1. 0.1
  2. 0.31
  3. 90
  4. 0.024
  5. 4.91
  6. 0.69
  7. 0.016
  8. 1
  9. 10
  10. 12.89
  11. 0.001
  12. 0.28
  13. 0.22
  14. 0.063
  15. 40
  16. 0.87
  17. 0.013
  18. 11.49
  19. 17.18
  20. 0.003
  21. 16.02
  22. 0.35
  23. 0.036
  24. 7.49
  25. 0.78
  26. 0.011
  27. 0.04
  28. 0.02
  29. 0.078
  30. 11.47
  31. 0.73
  32. 7
  33. 0.003
  34. 8.66
  35. 0.4
  36. 18.05
  37. 6
  38. 5
  39. 10
  40. 0.42

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