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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 151 · 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 2 in 47.925? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  2. 2.1.51 + 8.1 = ? (a) 2.32 (b) 9.71 (c) 9.61 (d) 9.51
  3. 3.9.34 + 6.3 = ? (a) 9.97 (b) 15.74 (c) 15.54 (d) 15.64
  4. 4.8.23 + 2.8 = ? (a) 11.13 (b) 8.51 (c) 11.03 (d) 10.93
  5. 5.What is the value of the digit 4 in 84.372? (a) 0.4 (b) 4 (c) 40 (d) 0.04
  6. 6.4.64 + 1.2 = ? (a) 4.76 (b) 5.94 (c) 5.74 (d) 5.84
  7. 7.3.21 + 2.3 = ? (a) 5.61 (b) 5.51 (c) 3.44 (d) 5.41
  8. 8.What is the value of the digit 5 in 53.461? (a) 50 (b) 0.5 (c) 5 (d) 0.05
  9. 9.Which is the smallest: 0.663, 0.013, 0.7, 0.72? (a) 0.663 (b) 0.013 (c) 0.7 (d) 0.72
  10. 10.7.04 + 4.5 = ? (a) 11.64 (b) 11.44 (c) 11.54 (d) 7.49
  11. 11.5.07 + 6.4 = ? (a) 11.57 (b) 11.47 (c) 11.37 (d) 5.71
  12. 12.What is the value of the digit 3 in 39.571? (a) 3 (b) 30 (c) 0.3 (d) 0.03
  13. 13.3.41 + 9.5 = ? (a) 4.36 (b) 12.91 (c) 12.81 (d) 13.01
  14. 14.Which is the greatest: 0.613, 0.057, 0.79, 0.7? (a) 0.613 (b) 0.057 (c) 0.79 (d) 0.7
  15. 15.What is the value of the digit 6 in 63.297? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  16. 16.What is the value of the digit 9 in 76.913? (a) 0.09 (b) 9 (c) 0.009 (d) 0.9
  17. 17.What is the value of the digit 3 in 71.436? (a) 0.3 (b) 0.03 (c) 3 (d) 0.003
  18. 18.Which is the smallest: 0.4, 0.46, 0.353, 0.023? (a) 0.4 (b) 0.46 (c) 0.353 (d) 0.023
  19. 19.5.36 + 2.9 = ? (a) 8.26 (b) 8.36 (c) 5.65 (d) 8.16
  20. 20.Which is the smallest: 0.69, 0.6, 0.016, 0.594? (a) 0.69 (b) 0.6 (c) 0.016 (d) 0.594
  21. 21.Which is the greatest: 0.052, 0.82, 0.765, 0.8? (a) 0.052 (b) 0.82 (c) 0.765 (d) 0.8
  22. 22.1.96 + 7.3 = ? (a) 9.26 (b) 9.16 (c) 9.36 (d) 2.69
  23. 23.6.17 + 6.1 = ? (a) 12.27 (b) 6.78 (c) 12.37 (d) 12.17
  24. 24.Which is the smallest: 0.015, 0.41, 0.367, 0.4? (a) 0.015 (b) 0.41 (c) 0.367 (d) 0.4
  25. 25.What is the value of the digit 1 in 43.718? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  26. 26.What is the value of the digit 6 in 96.318? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  27. 27.What is the value of the digit 6 in 71.596? (a) 0.6 (b) 6 (c) 0.06 (d) 0.006
  28. 28.Which is the smallest: 0.622, 0.78, 0.7, 0.066? (a) 0.622 (b) 0.78 (c) 0.7 (d) 0.066
  29. 29.Which is the smallest: 0.047, 0.668, 0.7, 0.73? (a) 0.047 (b) 0.668 (c) 0.7 (d) 0.73
  30. 30.What is the value of the digit 5 in 92.485? (a) 5 (b) 0.05 (c) 0.005 (d) 0.5
  31. 31.Which is the greatest: 0.077, 0.626, 0.7, 0.75? (a) 0.077 (b) 0.626 (c) 0.7 (d) 0.75
  32. 32.9.41 + 4.3 = ? (a) 13.61 (b) 9.84 (c) 13.81 (d) 13.71
  33. 33.Which is the greatest: 0.081, 0.48, 0.4, 0.383? (a) 0.081 (b) 0.48 (c) 0.4 (d) 0.383
  34. 34.8.75 + 5.3 = ? (a) 13.95 (b) 14.15 (c) 9.28 (d) 14.05
  35. 35.Which is the greatest: 0.34, 0.085, 0.241, 0.3? (a) 0.34 (b) 0.085 (c) 0.241 (d) 0.3
  36. 36.2.61 + 8.8 = ? (a) 3.49 (b) 11.31 (c) 11.51 (d) 11.41
  37. 37.1.52 + 1.1 = ? (a) 2.52 (b) 2.72 (c) 2.62 (d) 1.63
  38. 38.What is the value of the digit 8 in 52.138? (a) 0.08 (b) 0.008 (c) 0.8 (d) 8
  39. 39.8.92 + 9.1 = ? (a) 9.83 (b) 18.12 (c) 17.92 (d) 18.02
  40. 40.What is the value of the digit 7 in 76.284? (a) 7 (b) 70 (c) 0.7 (d) 0.07

Answer key

  1. 0.02
  2. 9.61
  3. 15.64
  4. 11.03
  5. 4
  6. 5.84
  7. 5.51
  8. 50
  9. 0.013
  10. 11.54
  11. 11.47
  12. 30
  13. 12.91
  14. 0.79
  15. 60
  16. 0.9
  17. 0.03
  18. 0.023
  19. 8.26
  20. 0.016
  21. 0.82
  22. 9.26
  23. 12.27
  24. 0.015
  25. 0.01
  26. 6
  27. 0.006
  28. 0.066
  29. 0.047
  30. 0.005
  31. 0.75
  32. 13.71
  33. 0.48
  34. 14.05
  35. 0.34
  36. 11.41
  37. 2.62
  38. 0.008
  39. 18.02
  40. 70

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