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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 331 · 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.Which is the greatest: 0.82, 0.032, 0.745, 0.8? (a) 0.82 (b) 0.032 (c) 0.745 (d) 0.8
  2. 2.What is the value of the digit 4 in 74.813? (a) 40 (b) 0.4 (c) 0.04 (d) 4
  3. 3.7.14 + 3.8 = ? (a) 7.52 (b) 11.04 (c) 10.94 (d) 10.84
  4. 4.What is the value of the digit 1 in 31.257? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  5. 5.2.31 + 3.1 = ? (a) 5.51 (b) 5.41 (c) 5.31 (d) 2.62
  6. 6.Which is the smallest: 0.2, 0.25, 0.011, 0.146? (a) 0.2 (b) 0.25 (c) 0.011 (d) 0.146
  7. 7.What is the value of the digit 5 in 15.867? (a) 0.5 (b) 5 (c) 50 (d) 0.05
  8. 8.Which is the smallest: 0.64, 0.026, 0.6, 0.527? (a) 0.64 (b) 0.026 (c) 0.6 (d) 0.527
  9. 9.What is the value of the digit 2 in 14.263? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  10. 10.Which is the smallest: 0.89, 0.723, 0.083, 0.8? (a) 0.89 (b) 0.723 (c) 0.083 (d) 0.8
  11. 11.Which is the greatest: 0.2, 0.26, 0.091, 0.137? (a) 0.2 (b) 0.26 (c) 0.091 (d) 0.137
  12. 12.Which is the smallest: 0.279, 0.044, 0.3, 0.31? (a) 0.279 (b) 0.044 (c) 0.3 (d) 0.31
  13. 13.2.61 + 1.8 = ? (a) 4.31 (b) 4.51 (c) 4.41 (d) 2.79
  14. 14.What is the value of the digit 6 in 93.762? (a) 0.06 (b) 0.006 (c) 6 (d) 0.6
  15. 15.6.81 + 9.3 = ? (a) 16.01 (b) 16.21 (c) 16.11 (d) 7.74
  16. 16.1.44 + 2.6 = ? (a) 3.94 (b) 4.04 (c) 4.14 (d) 1.7
  17. 17.What is the value of the digit 1 in 31.745? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  18. 18.3.83 + 7.2 = ? (a) 11.03 (b) 4.55 (c) 11.13 (d) 10.93
  19. 19.8.25 + 6.7 = ? (a) 14.85 (b) 14.95 (c) 8.92 (d) 15.05
  20. 20.What is the value of the digit 4 in 19.458? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  21. 21.Which is the smallest: 0.061, 0.4, 0.393, 0.44? (a) 0.061 (b) 0.4 (c) 0.393 (d) 0.44
  22. 22.What is the value of the digit 4 in 43.791? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  23. 23.What is the value of the digit 7 in 27.156? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  24. 24.2.58 + 3.1 = ? (a) 5.68 (b) 5.58 (c) 5.78 (d) 2.89
  25. 25.What is the value of the digit 2 in 96.732? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  26. 26.Which is the greatest: 0.24, 0.2, 0.159, 0.019? (a) 0.24 (b) 0.2 (c) 0.159 (d) 0.019
  27. 27.7.58 + 9.8 = ? (a) 17.38 (b) 17.48 (c) 17.28 (d) 8.56
  28. 28.What is the value of the digit 8 in 23.568? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  29. 29.What is the value of the digit 3 in 39.152? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  30. 30.What is the value of the digit 6 in 47.689? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6
  31. 31.Which is the smallest: 0.656, 0.72, 0.098, 0.7? (a) 0.656 (b) 0.72 (c) 0.098 (d) 0.7
  32. 32.Which is the smallest: 0.658, 0.021, 0.7, 0.77? (a) 0.658 (b) 0.021 (c) 0.7 (d) 0.77
  33. 33.4.08 + 6.7 = ? (a) 10.68 (b) 10.78 (c) 10.88 (d) 4.75
  34. 34.What is the value of the digit 5 in 84.259? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  35. 35.2.56 + 8.6 = ? (a) 11.16 (b) 11.26 (c) 3.42 (d) 11.06
  36. 36.What is the value of the digit 6 in 64.798? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  37. 37.What is the value of the digit 8 in 71.428? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  38. 38.Which is the smallest: 0.89, 0.8, 0.786, 0.017? (a) 0.89 (b) 0.8 (c) 0.786 (d) 0.017
  39. 39.What is the value of the digit 8 in 28.471? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  40. 40.Which is the greatest: 0.772, 0.82, 0.8, 0.076? (a) 0.772 (b) 0.82 (c) 0.8 (d) 0.076

Answer key

  1. 0.82
  2. 4
  3. 10.94
  4. 1
  5. 5.41
  6. 0.011
  7. 5
  8. 0.026
  9. 0.2
  10. 0.083
  11. 0.26
  12. 0.044
  13. 4.41
  14. 0.06
  15. 16.11
  16. 4.04
  17. 1
  18. 11.03
  19. 14.95
  20. 0.4
  21. 0.061
  22. 40
  23. 7
  24. 5.68
  25. 0.002
  26. 0.24
  27. 17.38
  28. 0.008
  29. 30
  30. 0.6
  31. 0.098
  32. 0.021
  33. 10.78
  34. 0.05
  35. 11.16
  36. 60
  37. 0.008
  38. 0.017
  39. 8
  40. 0.82

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