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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 541 · 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 greatest: 0.31, 0.262, 0.3, 0.061? (a) 0.31 (b) 0.262 (c) 0.3 (d) 0.061
  2. 2.1.56 + 1.5 = ? (a) 2.96 (b) 3.06 (c) 1.71 (d) 3.16
  3. 3.Which is the smallest: 0.3, 0.31, 0.292, 0.092? (a) 0.3 (b) 0.31 (c) 0.292 (d) 0.092
  4. 4.3.53 + 1.8 = ? (a) 3.71 (b) 5.23 (c) 5.33 (d) 5.43
  5. 5.6.72 + 9.7 = ? (a) 16.32 (b) 16.52 (c) 16.42 (d) 7.69
  6. 6.2.74 + 6.1 = ? (a) 8.74 (b) 3.35 (c) 8.84 (d) 8.94
  7. 7.What is the value of the digit 7 in 51.376? (a) 0.07 (b) 0.7 (c) 7 (d) 0.007
  8. 8.1.37 + 4.5 = ? (a) 5.87 (b) 1.82 (c) 5.77 (d) 5.97
  9. 9.Which is the greatest: 0.8, 0.047, 0.722, 0.83? (a) 0.8 (b) 0.047 (c) 0.722 (d) 0.83
  10. 10.9.31 + 4.6 = ? (a) 13.91 (b) 14.01 (c) 9.77 (d) 13.81
  11. 11.4.07 + 6.6 = ? (a) 10.57 (b) 10.67 (c) 10.77 (d) 4.73
  12. 12.What is the value of the digit 7 in 48.763? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  13. 13.What is the value of the digit 9 in 93.657? (a) 0.09 (b) 9 (c) 90 (d) 0.9
  14. 14.What is the value of the digit 8 in 71.983? (a) 8 (b) 0.008 (c) 0.08 (d) 0.8
  15. 15.What is the value of the digit 3 in 52.398? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  16. 16.2.17 + 2.7 = ? (a) 4.97 (b) 4.87 (c) 2.44 (d) 4.77
  17. 17.5.78 + 7.6 = ? (a) 13.38 (b) 6.54 (c) 13.28 (d) 13.48
  18. 18.1.85 + 9.4 = ? (a) 11.25 (b) 11.15 (c) 11.35 (d) 2.79
  19. 19.3.22 + 1.9 = ? (a) 5.22 (b) 5.12 (c) 3.41 (d) 5.02
  20. 20.Which is the smallest: 0.096, 0.42, 0.4, 0.351? (a) 0.096 (b) 0.42 (c) 0.4 (d) 0.351
  21. 21.Which is the greatest: 0.158, 0.082, 0.25, 0.2? (a) 0.158 (b) 0.082 (c) 0.25 (d) 0.2
  22. 22.Which is the greatest: 0.679, 0.7, 0.75, 0.088? (a) 0.679 (b) 0.7 (c) 0.75 (d) 0.088
  23. 23.Which is the smallest: 0.344, 0.4, 0.42, 0.019? (a) 0.344 (b) 0.4 (c) 0.42 (d) 0.019
  24. 24.What is the value of the digit 8 in 39.782? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  25. 25.8.38 + 4.3 = ? (a) 12.78 (b) 12.68 (c) 12.58 (d) 8.81
  26. 26.Which is the greatest: 0.8, 0.775, 0.056, 0.89? (a) 0.8 (b) 0.775 (c) 0.056 (d) 0.89
  27. 27.Which is the smallest: 0.046, 0.35, 0.288, 0.3? (a) 0.046 (b) 0.35 (c) 0.288 (d) 0.3
  28. 28.Which is the greatest: 0.4, 0.313, 0.022, 0.47? (a) 0.4 (b) 0.313 (c) 0.022 (d) 0.47
  29. 29.What is the value of the digit 1 in 21.358? (a) 0.1 (b) 0.01 (c) 10 (d) 1
  30. 30.Which is the greatest: 0.232, 0.056, 0.39, 0.3? (a) 0.232 (b) 0.056 (c) 0.39 (d) 0.3
  31. 31.4.99 + 6.1 = ? (a) 10.99 (b) 11.19 (c) 11.09 (d) 5.6
  32. 32.3.71 + 8.8 = ? (a) 12.51 (b) 4.59 (c) 12.61 (d) 12.41
  33. 33.What is the value of the digit 4 in 34.617? (a) 40 (b) 4 (c) 0.04 (d) 0.4
  34. 34.Which is the greatest: 0.5, 0.023, 0.428, 0.52? (a) 0.5 (b) 0.023 (c) 0.428 (d) 0.52
  35. 35.Which is the greatest: 0.82, 0.014, 0.724, 0.8? (a) 0.82 (b) 0.014 (c) 0.724 (d) 0.8
  36. 36.Which is the smallest: 0.86, 0.794, 0.075, 0.8? (a) 0.86 (b) 0.794 (c) 0.075 (d) 0.8
  37. 37.What is the value of the digit 9 in 89.125? (a) 90 (b) 9 (c) 0.09 (d) 0.9
  38. 38.Which is the greatest: 0.5, 0.414, 0.099, 0.55? (a) 0.5 (b) 0.414 (c) 0.099 (d) 0.55
  39. 39.4.13 + 3.1 = ? (a) 7.33 (b) 7.23 (c) 7.13 (d) 4.44
  40. 40.What is the value of the digit 4 in 27.145? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04

Answer key

  1. 0.31
  2. 3.06
  3. 0.092
  4. 5.33
  5. 16.42
  6. 8.84
  7. 0.07
  8. 5.87
  9. 0.83
  10. 13.91
  11. 10.67
  12. 0.7
  13. 90
  14. 0.08
  15. 0.3
  16. 4.87
  17. 13.38
  18. 11.25
  19. 5.12
  20. 0.096
  21. 0.25
  22. 0.75
  23. 0.019
  24. 0.08
  25. 12.68
  26. 0.89
  27. 0.046
  28. 0.47
  29. 1
  30. 0.39
  31. 11.09
  32. 12.51
  33. 4
  34. 0.52
  35. 0.82
  36. 0.075
  37. 9
  38. 0.55
  39. 7.23
  40. 0.04

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