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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 161 · 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: 0.031, 0.416, 0.55, 0.5? (a) 0.031 (b) 0.416 (c) 0.55 (d) 0.5
  2. 2.What is the value of the digit 4 in 87.463? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  3. 3.What is the value of the digit 1 in 19.863? (a) 0.01 (b) 1 (c) 0.1 (d) 10
  4. 4.Which is the greatest: 0.41, 0.4, 0.063, 0.341? (a) 0.41 (b) 0.4 (c) 0.063 (d) 0.341
  5. 5.7.01 + 3.2 = ? (a) 7.33 (b) 10.11 (c) 10.21 (d) 10.31
  6. 6.6.65 + 1.1 = ? (a) 7.75 (b) 7.65 (c) 7.85 (d) 6.76
  7. 7.9.37 + 7.8 = ? (a) 10.15 (b) 17.27 (c) 17.07 (d) 17.17
  8. 8.9.25 + 2.9 = ? (a) 12.05 (b) 12.15 (c) 9.54 (d) 12.25
  9. 9.2.59 + 2.1 = ? (a) 4.59 (b) 4.79 (c) 2.8 (d) 4.69
  10. 10.Which is the greatest: 0.4, 0.028, 0.49, 0.355? (a) 0.4 (b) 0.028 (c) 0.49 (d) 0.355
  11. 11.8.67 + 8.1 = ? (a) 9.48 (b) 16.87 (c) 16.77 (d) 16.67
  12. 12.Which is the greatest: 0.464, 0.065, 0.53, 0.5? (a) 0.464 (b) 0.065 (c) 0.53 (d) 0.5
  13. 13.Which is the greatest: 0.197, 0.2, 0.055, 0.22? (a) 0.197 (b) 0.2 (c) 0.055 (d) 0.22
  14. 14.What is the value of the digit 9 in 59.716? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  15. 15.What is the value of the digit 4 in 35.194? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  16. 16.1.87 + 7.3 = ? (a) 2.6 (b) 9.17 (c) 9.07 (d) 9.27
  17. 17.What is the value of the digit 8 in 82.435? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  18. 18.Which is the greatest: 0.4, 0.48, 0.012, 0.383? (a) 0.4 (b) 0.48 (c) 0.012 (d) 0.383
  19. 19.Which is the smallest: 0.3, 0.044, 0.215, 0.37? (a) 0.3 (b) 0.044 (c) 0.215 (d) 0.37
  20. 20.2.99 + 9.7 = ? (a) 12.59 (b) 12.69 (c) 3.96 (d) 12.79
  21. 21.What is the value of the digit 7 in 74.183? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  22. 22.1.49 + 1.5 = ? (a) 2.89 (b) 3.09 (c) 1.64 (d) 2.99
  23. 23.Which is the smallest: 0.8, 0.82, 0.079, 0.724? (a) 0.8 (b) 0.82 (c) 0.079 (d) 0.724
  24. 24.What is the value of the digit 7 in 85.217? (a) 7 (b) 0.7 (c) 0.007 (d) 0.07
  25. 25.What is the value of the digit 1 in 96.871? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  26. 26.5.05 + 1.2 = ? (a) 6.35 (b) 5.17 (c) 6.25 (d) 6.15
  27. 27.What is the value of the digit 9 in 34.598? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  28. 28.What is the value of the digit 2 in 87.524? (a) 0.002 (b) 2 (c) 0.2 (d) 0.02
  29. 29.What is the value of the digit 7 in 92.475? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  30. 30.Which is the greatest: 0.6, 0.589, 0.65, 0.018? (a) 0.6 (b) 0.589 (c) 0.65 (d) 0.018
  31. 31.3.49 + 5.1 = ? (a) 8.59 (b) 8.69 (c) 8.49 (d) 4
  32. 32.1.41 + 8.5 = ? (a) 2.26 (b) 10.01 (c) 9.81 (d) 9.91
  33. 33.4.98 + 1.1 = ? (a) 6.08 (b) 6.18 (c) 5.09 (d) 5.98
  34. 34.What is the value of the digit 1 in 91.347? (a) 10 (b) 0.01 (c) 1 (d) 0.1
  35. 35.Which is the smallest: 0.013, 0.51, 0.5, 0.489? (a) 0.013 (b) 0.51 (c) 0.5 (d) 0.489
  36. 36.What is the value of the digit 9 in 96.481? (a) 0.9 (b) 90 (c) 0.09 (d) 9
  37. 37.Which is the smallest: 0.072, 0.562, 0.6, 0.65? (a) 0.072 (b) 0.562 (c) 0.6 (d) 0.65
  38. 38.Which is the smallest: 0.46, 0.382, 0.4, 0.023? (a) 0.46 (b) 0.382 (c) 0.4 (d) 0.023
  39. 39.What is the value of the digit 7 in 23.789? (a) 0.007 (b) 7 (c) 0.7 (d) 0.07
  40. 40.7.13 + 1.6 = ? (a) 8.83 (b) 8.73 (c) 7.29 (d) 8.63

Answer key

  1. 0.55
  2. 0.4
  3. 10
  4. 0.41
  5. 10.21
  6. 7.75
  7. 17.17
  8. 12.15
  9. 4.69
  10. 0.49
  11. 16.77
  12. 0.53
  13. 0.22
  14. 9
  15. 0.004
  16. 9.17
  17. 80
  18. 0.48
  19. 0.044
  20. 12.69
  21. 70
  22. 2.99
  23. 0.079
  24. 0.007
  25. 0.001
  26. 6.25
  27. 0.09
  28. 0.02
  29. 0.07
  30. 0.65
  31. 8.59
  32. 9.91
  33. 6.08
  34. 1
  35. 0.013
  36. 90
  37. 0.072
  38. 0.023
  39. 0.7
  40. 8.73

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