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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 165 · 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 6 in 69.527? (a) 6 (b) 60 (c) 0.06 (d) 0.6
  2. 2.2.71 + 2.2 = ? (a) 4.91 (b) 4.81 (c) 2.93 (d) 5.01
  3. 3.3.51 + 2.4 = ? (a) 3.75 (b) 5.81 (c) 5.91 (d) 6.01
  4. 4.What is the value of the digit 2 in 16.725? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  5. 5.Which is the greatest: 0.23, 0.137, 0.2, 0.089? (a) 0.23 (b) 0.137 (c) 0.2 (d) 0.089
  6. 6.What is the value of the digit 2 in 42.381? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  7. 7.Which is the smallest: 0.386, 0.035, 0.4, 0.43? (a) 0.386 (b) 0.035 (c) 0.4 (d) 0.43
  8. 8.Which is the greatest: 0.82, 0.8, 0.779, 0.021? (a) 0.82 (b) 0.8 (c) 0.779 (d) 0.021
  9. 9.What is the value of the digit 4 in 84.567? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  10. 10.Which is the greatest: 0.7, 0.71, 0.688, 0.074? (a) 0.7 (b) 0.71 (c) 0.688 (d) 0.074
  11. 11.8.81 + 5.9 = ? (a) 14.61 (b) 14.71 (c) 9.4 (d) 14.81
  12. 12.9.52 + 5.2 = ? (a) 14.82 (b) 14.72 (c) 14.62 (d) 10.04
  13. 13.What is the value of the digit 2 in 47.529? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  14. 14.What is the value of the digit 7 in 78.146? (a) 7 (b) 0.07 (c) 70 (d) 0.7
  15. 15.8.47 + 9.1 = ? (a) 9.38 (b) 17.67 (c) 17.47 (d) 17.57
  16. 16.1.39 + 6.1 = ? (a) 7.39 (b) 7.59 (c) 2 (d) 7.49
  17. 17.1.91 + 8.1 = ? (a) 9.91 (b) 2.72 (c) 10.01 (d) 10.11
  18. 18.4.41 + 3.6 = ? (a) 4.77 (b) 8.01 (c) 8.11 (d) 7.91
  19. 19.Which is the smallest: 0.095, 0.698, 0.7, 0.72? (a) 0.095 (b) 0.698 (c) 0.7 (d) 0.72
  20. 20.8.99 + 2.5 = ? (a) 11.39 (b) 11.49 (c) 11.59 (d) 9.24
  21. 21.5.28 + 4.1 = ? (a) 9.38 (b) 9.28 (c) 9.48 (d) 5.69
  22. 22.Which is the greatest: 0.36, 0.016, 0.239, 0.3? (a) 0.36 (b) 0.016 (c) 0.239 (d) 0.3
  23. 23.What is the value of the digit 2 in 37.241? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  24. 24.What is the value of the digit 2 in 57.329? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  25. 25.What is the value of the digit 1 in 73.916? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  26. 26.What is the value of the digit 7 in 53.729? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  27. 27.8.23 + 4.6 = ? (a) 12.83 (b) 12.73 (c) 12.93 (d) 8.69
  28. 28.8.56 + 5.5 = ? (a) 14.16 (b) 13.96 (c) 9.11 (d) 14.06
  29. 29.Which is the smallest: 0.33, 0.048, 0.255, 0.3? (a) 0.33 (b) 0.048 (c) 0.255 (d) 0.3
  30. 30.1.52 + 1.3 = ? (a) 2.72 (b) 2.92 (c) 2.82 (d) 1.65
  31. 31.What is the value of the digit 5 in 32.854? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  32. 32.Which is the smallest: 0.24, 0.065, 0.125, 0.2? (a) 0.24 (b) 0.065 (c) 0.125 (d) 0.2
  33. 33.9.51 + 6.3 = ? (a) 15.71 (b) 15.91 (c) 10.14 (d) 15.81
  34. 34.What is the value of the digit 3 in 73.195? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  35. 35.Which is the greatest: 0.738, 0.89, 0.8, 0.064? (a) 0.738 (b) 0.89 (c) 0.8 (d) 0.064
  36. 36.Which is the smallest: 0.446, 0.56, 0.064, 0.5? (a) 0.446 (b) 0.56 (c) 0.064 (d) 0.5
  37. 37.Which is the smallest: 0.3, 0.244, 0.098, 0.32? (a) 0.3 (b) 0.244 (c) 0.098 (d) 0.32
  38. 38.What is the value of the digit 2 in 48.231? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  39. 39.Which is the smallest: 0.721, 0.81, 0.028, 0.8? (a) 0.721 (b) 0.81 (c) 0.028 (d) 0.8
  40. 40.4.12 + 5.4 = ? (a) 9.42 (b) 9.52 (c) 9.62 (d) 4.66

Answer key

  1. 60
  2. 4.91
  3. 5.91
  4. 0.02
  5. 0.23
  6. 2
  7. 0.035
  8. 0.82
  9. 4
  10. 0.71
  11. 14.71
  12. 14.72
  13. 0.02
  14. 70
  15. 17.57
  16. 7.49
  17. 10.01
  18. 8.01
  19. 0.095
  20. 11.49
  21. 9.38
  22. 0.36
  23. 0.2
  24. 0.02
  25. 0.01
  26. 0.7
  27. 12.83
  28. 14.06
  29. 0.048
  30. 2.82
  31. 0.05
  32. 0.065
  33. 15.81
  34. 3
  35. 0.89
  36. 0.064
  37. 0.098
  38. 0.2
  39. 0.028
  40. 9.52

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