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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 76 · 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. 1.8.11 + 7.3 = ? (a) 15.31 (b) 8.84 (c) 15.51 (d) 15.41
  2. 2.Which is the smallest: 0.64, 0.6, 0.531, 0.097? (a) 0.64 (b) 0.6 (c) 0.531 (d) 0.097
  3. 3.Which is the greatest: 0.715, 0.87, 0.8, 0.096? (a) 0.715 (b) 0.87 (c) 0.8 (d) 0.096
  4. 4.Which is the smallest: 0.013, 0.8, 0.729, 0.82? (a) 0.013 (b) 0.8 (c) 0.729 (d) 0.82
  5. 5.Which is the greatest: 0.051, 0.197, 0.2, 0.21? (a) 0.051 (b) 0.197 (c) 0.2 (d) 0.21
  6. 6.What is the value of the digit 2 in 45.129? (a) 0.02 (b) 2 (c) 0.002 (d) 0.2
  7. 7.Which is the smallest: 0.767, 0.099, 0.8, 0.84? (a) 0.767 (b) 0.099 (c) 0.8 (d) 0.84
  8. 8.7.55 + 1.5 = ? (a) 7.7 (b) 8.95 (c) 9.15 (d) 9.05
  9. 9.Which is the smallest: 0.3, 0.211, 0.31, 0.019? (a) 0.3 (b) 0.211 (c) 0.31 (d) 0.019
  10. 10.What is the value of the digit 5 in 54.128? (a) 5 (b) 50 (c) 0.05 (d) 0.5
  11. 11.1.46 + 4.5 = ? (a) 5.86 (b) 5.96 (c) 6.06 (d) 1.91
  12. 12.Which is the smallest: 0.032, 0.6, 0.533, 0.65? (a) 0.032 (b) 0.6 (c) 0.533 (d) 0.65
  13. 13.What is the value of the digit 6 in 52.346? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  14. 14.What is the value of the digit 6 in 63.825? (a) 6 (b) 60 (c) 0.6 (d) 0.06
  15. 15.What is the value of the digit 7 in 73.149? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  16. 16.Which is the smallest: 0.141, 0.052, 0.26, 0.2? (a) 0.141 (b) 0.052 (c) 0.26 (d) 0.2
  17. 17.3.65 + 1.2 = ? (a) 4.85 (b) 4.75 (c) 3.77 (d) 4.95
  18. 18.Which is the greatest: 0.2, 0.122, 0.21, 0.017? (a) 0.2 (b) 0.122 (c) 0.21 (d) 0.017
  19. 19.Which is the smallest: 0.097, 0.387, 0.4, 0.46? (a) 0.097 (b) 0.387 (c) 0.4 (d) 0.46
  20. 20.What is the value of the digit 4 in 48.593? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  21. 21.What is the value of the digit 9 in 18.954? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  22. 22.What is the value of the digit 8 in 84.152? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  23. 23.1.83 + 6.4 = ? (a) 2.47 (b) 8.13 (c) 8.33 (d) 8.23
  24. 24.Which is the smallest: 0.255, 0.3, 0.054, 0.32? (a) 0.255 (b) 0.3 (c) 0.054 (d) 0.32
  25. 25.Which is the greatest: 0.3, 0.232, 0.36, 0.011? (a) 0.3 (b) 0.232 (c) 0.36 (d) 0.011
  26. 26.Which is the smallest: 0.71, 0.7, 0.628, 0.053? (a) 0.71 (b) 0.7 (c) 0.628 (d) 0.053
  27. 27.9.71 + 1.5 = ? (a) 11.21 (b) 9.86 (c) 11.11 (d) 11.31
  28. 28.What is the value of the digit 4 in 37.649? (a) 0.4 (b) 4 (c) 0.004 (d) 0.04
  29. 29.Which is the smallest: 0.035, 0.27, 0.2, 0.113? (a) 0.035 (b) 0.27 (c) 0.2 (d) 0.113
  30. 30.2.36 + 3.7 = ? (a) 6.16 (b) 6.06 (c) 5.96 (d) 2.73
  31. 31.What is the value of the digit 4 in 36.754? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  32. 32.Which is the greatest: 0.57, 0.5, 0.071, 0.423? (a) 0.57 (b) 0.5 (c) 0.071 (d) 0.423
  33. 33.What is the value of the digit 9 in 68.519? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  34. 34.Which is the greatest: 0.2, 0.27, 0.094, 0.152? (a) 0.2 (b) 0.27 (c) 0.094 (d) 0.152
  35. 35.2.06 + 4.5 = ? (a) 6.66 (b) 2.51 (c) 6.46 (d) 6.56
  36. 36.Which is the greatest: 0.632, 0.7, 0.031, 0.79? (a) 0.632 (b) 0.7 (c) 0.031 (d) 0.79
  37. 37.Which is the greatest: 0.023, 0.3, 0.37, 0.215? (a) 0.023 (b) 0.3 (c) 0.37 (d) 0.215
  38. 38.Which is the greatest: 0.8, 0.738, 0.086, 0.82? (a) 0.8 (b) 0.738 (c) 0.086 (d) 0.82
  39. 39.3.65 + 6.5 = ? (a) 10.25 (b) 10.15 (c) 4.3 (d) 10.05
  40. 40.8.04 + 6.8 = ? (a) 14.84 (b) 14.74 (c) 8.72 (d) 14.94

Answer key

  1. 15.41
  2. 0.097
  3. 0.87
  4. 0.013
  5. 0.21
  6. 0.02
  7. 0.099
  8. 9.05
  9. 0.019
  10. 50
  11. 5.96
  12. 0.032
  13. 0.006
  14. 60
  15. 70
  16. 0.052
  17. 4.85
  18. 0.21
  19. 0.097
  20. 40
  21. 0.9
  22. 80
  23. 8.23
  24. 0.054
  25. 0.36
  26. 0.053
  27. 11.21
  28. 0.04
  29. 0.035
  30. 6.06
  31. 0.004
  32. 0.57
  33. 0.009
  34. 0.27
  35. 6.56
  36. 0.79
  37. 0.37
  38. 0.82
  39. 10.15
  40. 14.84

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