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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 762 · 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 smallest: 0.026, 0.4, 0.41, 0.352? (a) 0.026 (b) 0.4 (c) 0.41 (d) 0.352
  2. 2.What is the value of the digit 6 in 13.462? (a) 0.006 (b) 0.6 (c) 0.06 (d) 6
  3. 3.4.81 + 2.4 = ? (a) 7.31 (b) 7.21 (c) 7.11 (d) 5.05
  4. 4.Which is the greatest: 0.141, 0.068, 0.2, 0.29? (a) 0.141 (b) 0.068 (c) 0.2 (d) 0.29
  5. 5.Which is the greatest: 0.086, 0.33, 0.3, 0.236? (a) 0.086 (b) 0.33 (c) 0.3 (d) 0.236
  6. 6.1.84 + 7.8 = ? (a) 2.62 (b) 9.74 (c) 9.64 (d) 9.54
  7. 7.8.99 + 8.2 = ? (a) 17.19 (b) 17.09 (c) 9.81 (d) 17.29
  8. 8.Which is the smallest: 0.4, 0.43, 0.033, 0.318? (a) 0.4 (b) 0.43 (c) 0.033 (d) 0.318
  9. 9.What is the value of the digit 1 in 43.581? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  10. 10.Which is the smallest: 0.4, 0.319, 0.48, 0.081? (a) 0.4 (b) 0.319 (c) 0.48 (d) 0.081
  11. 11.What is the value of the digit 6 in 32.468? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  12. 12.What is the value of the digit 9 in 84.596? (a) 9 (b) 0.09 (c) 0.9 (d) 0.009
  13. 13.8.89 + 7.4 = ? (a) 9.63 (b) 16.29 (c) 16.39 (d) 16.19
  14. 14.1.25 + 9.1 = ? (a) 10.35 (b) 10.45 (c) 10.25 (d) 2.16
  15. 15.Which is the smallest: 0.3, 0.273, 0.051, 0.38? (a) 0.3 (b) 0.273 (c) 0.051 (d) 0.38
  16. 16.Which is the smallest: 0.8, 0.027, 0.82, 0.776? (a) 0.8 (b) 0.027 (c) 0.82 (d) 0.776
  17. 17.What is the value of the digit 8 in 87.615? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  18. 18.5.37 + 8.4 = ? (a) 13.67 (b) 13.87 (c) 6.21 (d) 13.77
  19. 19.Which is the greatest: 0.37, 0.082, 0.3, 0.288? (a) 0.37 (b) 0.082 (c) 0.3 (d) 0.288
  20. 20.Which is the smallest: 0.24, 0.185, 0.2, 0.091? (a) 0.24 (b) 0.185 (c) 0.2 (d) 0.091
  21. 21.4.26 + 1.8 = ? (a) 6.16 (b) 4.44 (c) 5.96 (d) 6.06
  22. 22.What is the value of the digit 3 in 34.251? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  23. 23.Which is the greatest: 0.381, 0.48, 0.4, 0.017? (a) 0.381 (b) 0.48 (c) 0.4 (d) 0.017
  24. 24.What is the value of the digit 1 in 25.149? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  25. 25.2.49 + 5.1 = ? (a) 7.49 (b) 7.59 (c) 3 (d) 7.69
  26. 26.6.04 + 3.9 = ? (a) 10.04 (b) 6.43 (c) 9.84 (d) 9.94
  27. 27.Which is the greatest: 0.451, 0.049, 0.5, 0.57? (a) 0.451 (b) 0.049 (c) 0.5 (d) 0.57
  28. 28.Which is the smallest: 0.63, 0.018, 0.6, 0.555? (a) 0.63 (b) 0.018 (c) 0.6 (d) 0.555
  29. 29.Which is the greatest: 0.476, 0.5, 0.043, 0.59? (a) 0.476 (b) 0.5 (c) 0.043 (d) 0.59
  30. 30.What is the value of the digit 1 in 97.418? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  31. 31.3.75 + 3.5 = ? (a) 7.35 (b) 4.1 (c) 7.15 (d) 7.25
  32. 32.5.39 + 6.8 = ? (a) 6.07 (b) 12.29 (c) 12.19 (d) 12.09
  33. 33.Which is the smallest: 0.4, 0.375, 0.42, 0.023? (a) 0.4 (b) 0.375 (c) 0.42 (d) 0.023
  34. 34.6.11 + 5.7 = ? (a) 11.71 (b) 11.91 (c) 6.68 (d) 11.81
  35. 35.What is the value of the digit 6 in 63.915? (a) 60 (b) 6 (c) 0.06 (d) 0.6
  36. 36.7.16 + 5.9 = ? (a) 13.16 (b) 7.75 (c) 12.96 (d) 13.06
  37. 37.3.25 + 3.5 = ? (a) 6.85 (b) 6.75 (c) 3.6 (d) 6.65
  38. 38.5.43 + 9.8 = ? (a) 15.23 (b) 6.41 (c) 15.33 (d) 15.13
  39. 39.7.96 + 5.2 = ? (a) 13.16 (b) 13.26 (c) 13.06 (d) 8.48
  40. 40.Which is the greatest: 0.074, 0.71, 0.694, 0.7? (a) 0.074 (b) 0.71 (c) 0.694 (d) 0.7

Answer key

  1. 0.026
  2. 0.06
  3. 7.21
  4. 0.29
  5. 0.33
  6. 9.64
  7. 17.19
  8. 0.033
  9. 0.001
  10. 0.081
  11. 0.06
  12. 0.09
  13. 16.29
  14. 10.35
  15. 0.051
  16. 0.027
  17. 80
  18. 13.77
  19. 0.37
  20. 0.091
  21. 6.06
  22. 30
  23. 0.48
  24. 0.1
  25. 7.59
  26. 9.94
  27. 0.57
  28. 0.018
  29. 0.59
  30. 0.01
  31. 7.25
  32. 12.19
  33. 0.023
  34. 11.81
  35. 60
  36. 13.06
  37. 6.75
  38. 15.23
  39. 13.16
  40. 0.71

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