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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 300 · 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 9 in 25.169? (a) 0.009 (b) 9 (c) 0.09 (d) 0.9
  2. 2.9.14 + 3.3 = ? (a) 12.54 (b) 9.47 (c) 12.44 (d) 12.34
  3. 3.Which is the smallest: 0.287, 0.035, 0.3, 0.37? (a) 0.287 (b) 0.035 (c) 0.3 (d) 0.37
  4. 4.8.54 + 5.8 = ? (a) 9.12 (b) 14.24 (c) 14.34 (d) 14.44
  5. 5.9.97 + 2.9 = ? (a) 12.87 (b) 10.26 (c) 12.77 (d) 12.97
  6. 6.What is the value of the digit 1 in 51.238? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  7. 7.Which is the smallest: 0.83, 0.068, 0.8, 0.733? (a) 0.83 (b) 0.068 (c) 0.8 (d) 0.733
  8. 8.6.07 + 1.4 = ? (a) 7.57 (b) 6.21 (c) 7.37 (d) 7.47
  9. 9.What is the value of the digit 2 in 32.197? (a) 0.2 (b) 0.02 (c) 20 (d) 2
  10. 10.What is the value of the digit 5 in 58.724? (a) 0.5 (b) 50 (c) 5 (d) 0.05
  11. 11.What is the value of the digit 5 in 32.574? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  12. 12.Which is the greatest: 0.152, 0.031, 0.2, 0.25? (a) 0.152 (b) 0.031 (c) 0.2 (d) 0.25
  13. 13.7.48 + 1.6 = ? (a) 7.64 (b) 8.98 (c) 9.18 (d) 9.08
  14. 14.What is the value of the digit 4 in 97.824? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  15. 15.What is the value of the digit 8 in 48.361? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  16. 16.4.49 + 4.6 = ? (a) 4.95 (b) 8.99 (c) 9.09 (d) 9.19
  17. 17.Which is the smallest: 0.6, 0.029, 0.64, 0.523? (a) 0.6 (b) 0.029 (c) 0.64 (d) 0.523
  18. 18.Which is the smallest: 0.033, 0.39, 0.3, 0.264? (a) 0.033 (b) 0.39 (c) 0.3 (d) 0.264
  19. 19.Which is the greatest: 0.012, 0.664, 0.75, 0.7? (a) 0.012 (b) 0.664 (c) 0.75 (d) 0.7
  20. 20.What is the value of the digit 9 in 29.784? (a) 0.9 (b) 9 (c) 90 (d) 0.09
  21. 21.9.47 + 1.1 = ? (a) 9.58 (b) 10.57 (c) 10.67 (d) 10.47
  22. 22.1.27 + 2.7 = ? (a) 3.87 (b) 1.54 (c) 4.07 (d) 3.97
  23. 23.What is the value of the digit 6 in 23.476? (a) 0.6 (b) 0.06 (c) 0.006 (d) 6
  24. 24.5.93 + 1.4 = ? (a) 6.07 (b) 7.43 (c) 7.33 (d) 7.23
  25. 25.1.83 + 6.7 = ? (a) 8.43 (b) 8.63 (c) 8.53 (d) 2.5
  26. 26.What is the value of the digit 7 in 78.413? (a) 7 (b) 70 (c) 0.7 (d) 0.07
  27. 27.Which is the greatest: 0.032, 0.2, 0.26, 0.132? (a) 0.032 (b) 0.2 (c) 0.26 (d) 0.132
  28. 28.What is the value of the digit 1 in 34.521? (a) 0.001 (b) 1 (c) 0.1 (d) 0.01
  29. 29.4.83 + 8.8 = ? (a) 13.53 (b) 13.63 (c) 13.73 (d) 5.71
  30. 30.5.77 + 7.2 = ? (a) 13.07 (b) 6.49 (c) 12.87 (d) 12.97
  31. 31.6.32 + 7.4 = ? (a) 13.72 (b) 7.06 (c) 13.82 (d) 13.62
  32. 32.What is the value of the digit 9 in 72.169? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  33. 33.8.15 + 2.5 = ? (a) 8.4 (b) 10.75 (c) 10.65 (d) 10.55
  34. 34.8.29 + 2.9 = ? (a) 11.29 (b) 11.09 (c) 11.19 (d) 8.58
  35. 35.Which is the smallest: 0.087, 0.49, 0.4, 0.322? (a) 0.087 (b) 0.49 (c) 0.4 (d) 0.322
  36. 36.What is the value of the digit 3 in 34.291? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  37. 37.1.21 + 6.9 = ? (a) 1.9 (b) 8.01 (c) 8.21 (d) 8.11
  38. 38.What is the value of the digit 9 in 79.158? (a) 0.9 (b) 0.09 (c) 90 (d) 9
  39. 39.Which is the greatest: 0.257, 0.011, 0.3, 0.37? (a) 0.257 (b) 0.011 (c) 0.3 (d) 0.37
  40. 40.What is the value of the digit 8 in 36.845? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08

Answer key

  1. 0.009
  2. 12.44
  3. 0.035
  4. 14.34
  5. 12.87
  6. 1
  7. 0.068
  8. 7.47
  9. 2
  10. 50
  11. 0.5
  12. 0.25
  13. 9.08
  14. 0.004
  15. 8
  16. 9.09
  17. 0.029
  18. 0.033
  19. 0.75
  20. 9
  21. 10.57
  22. 3.97
  23. 0.006
  24. 7.33
  25. 8.53
  26. 70
  27. 0.26
  28. 0.001
  29. 13.63
  30. 12.97
  31. 13.72
  32. 0.009
  33. 10.65
  34. 11.19
  35. 0.087
  36. 30
  37. 8.11
  38. 9
  39. 0.37
  40. 0.8

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