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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 537 · 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 81.923? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  2. 2.Which is the greatest: 0.51, 0.081, 0.5, 0.493? (a) 0.51 (b) 0.081 (c) 0.5 (d) 0.493
  3. 3.Which is the smallest: 0.4, 0.013, 0.361, 0.45? (a) 0.4 (b) 0.013 (c) 0.361 (d) 0.45
  4. 4.What is the value of the digit 3 in 96.372? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  5. 5.8.56 + 7.4 = ? (a) 15.86 (b) 15.96 (c) 9.3 (d) 16.06
  6. 6.Which is the greatest: 0.3, 0.211, 0.31, 0.014? (a) 0.3 (b) 0.211 (c) 0.31 (d) 0.014
  7. 7.What is the value of the digit 5 in 23.185? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005
  8. 8.6.39 + 3.8 = ? (a) 6.77 (b) 10.19 (c) 10.09 (d) 10.29
  9. 9.5.03 + 1.5 = ? (a) 6.43 (b) 5.18 (c) 6.53 (d) 6.63
  10. 10.Which is the greatest: 0.27, 0.2, 0.174, 0.013? (a) 0.27 (b) 0.2 (c) 0.174 (d) 0.013
  11. 11.2.64 + 1.2 = ? (a) 3.74 (b) 3.84 (c) 2.76 (d) 3.94
  12. 12.7.97 + 3.1 = ? (a) 8.28 (b) 11.17 (c) 10.97 (d) 11.07
  13. 13.Which is the smallest: 0.379, 0.48, 0.081, 0.4? (a) 0.379 (b) 0.48 (c) 0.081 (d) 0.4
  14. 14.3.81 + 7.7 = ? (a) 11.41 (b) 4.58 (c) 11.51 (d) 11.61
  15. 15.Which is the greatest: 0.154, 0.29, 0.046, 0.2? (a) 0.154 (b) 0.29 (c) 0.046 (d) 0.2
  16. 16.Which is the greatest: 0.065, 0.267, 0.3, 0.37? (a) 0.065 (b) 0.267 (c) 0.3 (d) 0.37
  17. 17.What is the value of the digit 2 in 32.789? (a) 0.2 (b) 2 (c) 20 (d) 0.02
  18. 18.Which is the greatest: 0.076, 0.525, 0.65, 0.6? (a) 0.076 (b) 0.525 (c) 0.65 (d) 0.6
  19. 19.5.38 + 3.7 = ? (a) 5.75 (b) 8.98 (c) 9.08 (d) 9.18
  20. 20.What is the value of the digit 1 in 85.216? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  21. 21.What is the value of the digit 5 in 85.342? (a) 0.05 (b) 0.5 (c) 50 (d) 5
  22. 22.Which is the smallest: 0.063, 0.7, 0.695, 0.72? (a) 0.063 (b) 0.7 (c) 0.695 (d) 0.72
  23. 23.5.36 + 1.3 = ? (a) 6.56 (b) 5.49 (c) 6.66 (d) 6.76
  24. 24.What is the value of the digit 5 in 45.392? (a) 0.5 (b) 5 (c) 0.05 (d) 50
  25. 25.Which is the greatest: 0.098, 0.761, 0.8, 0.82? (a) 0.098 (b) 0.761 (c) 0.8 (d) 0.82
  26. 26.7.26 + 7.9 = ? (a) 15.06 (b) 15.16 (c) 15.26 (d) 8.05
  27. 27.What is the value of the digit 8 in 29.481? (a) 0.008 (b) 8 (c) 0.8 (d) 0.08
  28. 28.What is the value of the digit 3 in 12.534? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  29. 29.2.17 + 9.1 = ? (a) 11.27 (b) 11.17 (c) 3.08 (d) 11.37
  30. 30.5.91 + 9.1 = ? (a) 14.91 (b) 15.11 (c) 6.82 (d) 15.01
  31. 31.What is the value of the digit 7 in 89.627? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  32. 32.Which is the greatest: 0.352, 0.49, 0.4, 0.041? (a) 0.352 (b) 0.49 (c) 0.4 (d) 0.041
  33. 33.6.61 + 4.9 = ? (a) 11.41 (b) 7.1 (c) 11.61 (d) 11.51
  34. 34.Which is the greatest: 0.778, 0.8, 0.88, 0.081? (a) 0.778 (b) 0.8 (c) 0.88 (d) 0.081
  35. 35.Which is the greatest: 0.6, 0.551, 0.042, 0.65? (a) 0.6 (b) 0.551 (c) 0.042 (d) 0.65
  36. 36.What is the value of the digit 4 in 49.185? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  37. 37.Which is the greatest: 0.34, 0.022, 0.252, 0.3? (a) 0.34 (b) 0.022 (c) 0.252 (d) 0.3
  38. 38.What is the value of the digit 2 in 29.145? (a) 0.02 (b) 0.2 (c) 20 (d) 2
  39. 39.2.46 + 9.2 = ? (a) 11.76 (b) 11.66 (c) 3.38 (d) 11.56
  40. 40.3.23 + 4.5 = ? (a) 7.83 (b) 7.73 (c) 7.63 (d) 3.68

Answer key

  1. 1
  2. 0.51
  3. 0.013
  4. 0.3
  5. 15.96
  6. 0.31
  7. 0.005
  8. 10.19
  9. 6.53
  10. 0.27
  11. 3.84
  12. 11.07
  13. 0.081
  14. 11.51
  15. 0.29
  16. 0.37
  17. 2
  18. 0.65
  19. 9.08
  20. 0.01
  21. 5
  22. 0.063
  23. 6.66
  24. 5
  25. 0.82
  26. 15.16
  27. 0.08
  28. 0.03
  29. 11.27
  30. 15.01
  31. 0.007
  32. 0.49
  33. 11.51
  34. 0.88
  35. 0.65
  36. 40
  37. 0.34
  38. 20
  39. 11.66
  40. 7.73

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