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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 465 · 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: 0.269, 0.37, 0.033, 0.3? (a) 0.269 (b) 0.37 (c) 0.033 (d) 0.3
  2. 2.8.51 + 6.1 = ? (a) 14.51 (b) 9.12 (c) 14.61 (d) 14.71
  3. 3.What is the value of the digit 1 in 21.695? (a) 0.01 (b) 10 (c) 1 (d) 0.1
  4. 4.Which is the greatest: 0.87, 0.079, 0.736, 0.8? (a) 0.87 (b) 0.079 (c) 0.736 (d) 0.8
  5. 5.What is the value of the digit 2 in 25.468? (a) 2 (b) 0.02 (c) 0.2 (d) 20
  6. 6.What is the value of the digit 4 in 78.264? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  7. 7.4.21 + 7.2 = ? (a) 11.51 (b) 4.93 (c) 11.31 (d) 11.41
  8. 8.What is the value of the digit 8 in 98.214? (a) 80 (b) 0.8 (c) 0.08 (d) 8
  9. 9.What is the value of the digit 9 in 27.194? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  10. 10.6.17 + 3.2 = ? (a) 6.49 (b) 9.47 (c) 9.27 (d) 9.37
  11. 11.2.59 + 2.6 = ? (a) 5.19 (b) 5.09 (c) 5.29 (d) 2.85
  12. 12.What is the value of the digit 9 in 36.927? (a) 0.9 (b) 0.09 (c) 0.009 (d) 9
  13. 13.Which is the greatest: 0.048, 0.6, 0.65, 0.585? (a) 0.048 (b) 0.6 (c) 0.65 (d) 0.585
  14. 14.1.96 + 8.6 = ? (a) 10.46 (b) 10.66 (c) 2.82 (d) 10.56
  15. 15.Which is the greatest: 0.35, 0.3, 0.287, 0.084? (a) 0.35 (b) 0.3 (c) 0.287 (d) 0.084
  16. 16.What is the value of the digit 4 in 52.486? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  17. 17.1.74 + 2.7 = ? (a) 4.34 (b) 2.01 (c) 4.44 (d) 4.54
  18. 18.Which is the smallest: 0.75, 0.7, 0.644, 0.067? (a) 0.75 (b) 0.7 (c) 0.644 (d) 0.067
  19. 19.What is the value of the digit 5 in 15.863? (a) 5 (b) 50 (c) 0.05 (d) 0.5
  20. 20.What is the value of the digit 4 in 43.271? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  21. 21.Which is the smallest: 0.5, 0.039, 0.52, 0.444? (a) 0.5 (b) 0.039 (c) 0.52 (d) 0.444
  22. 22.9.89 + 7.5 = ? (a) 17.29 (b) 17.39 (c) 10.64 (d) 17.49
  23. 23.9.24 + 3.7 = ? (a) 9.61 (b) 12.84 (c) 12.94 (d) 13.04
  24. 24.7.01 + 2.6 = ? (a) 9.71 (b) 9.51 (c) 7.27 (d) 9.61
  25. 25.Which is the greatest: 0.023, 0.3, 0.224, 0.32? (a) 0.023 (b) 0.3 (c) 0.224 (d) 0.32
  26. 26.What is the value of the digit 1 in 51.637? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  27. 27.1.91 + 2.3 = ? (a) 2.14 (b) 4.11 (c) 4.31 (d) 4.21
  28. 28.4.63 + 8.6 = ? (a) 13.33 (b) 5.49 (c) 13.23 (d) 13.13
  29. 29.6.87 + 3.2 = ? (a) 7.19 (b) 10.17 (c) 9.97 (d) 10.07
  30. 30.What is the value of the digit 8 in 25.894? (a) 0.008 (b) 0.8 (c) 0.08 (d) 8
  31. 31.Which is the greatest: 0.3, 0.215, 0.36, 0.072? (a) 0.3 (b) 0.215 (c) 0.36 (d) 0.072
  32. 32.What is the value of the digit 8 in 25.748? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8
  33. 33.What is the value of the digit 5 in 75.624? (a) 5 (b) 50 (c) 0.05 (d) 0.5
  34. 34.5.78 + 6.9 = ? (a) 6.47 (b) 12.58 (c) 12.78 (d) 12.68
  35. 35.Which is the smallest: 0.344, 0.44, 0.4, 0.056? (a) 0.344 (b) 0.44 (c) 0.4 (d) 0.056
  36. 36.What is the value of the digit 2 in 24.738? (a) 2 (b) 0.02 (c) 0.2 (d) 20
  37. 37.What is the value of the digit 9 in 19.826? (a) 90 (b) 0.09 (c) 0.9 (d) 9
  38. 38.What is the value of the digit 2 in 32.618? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  39. 39.Which is the greatest: 0.87, 0.049, 0.796, 0.8? (a) 0.87 (b) 0.049 (c) 0.796 (d) 0.8
  40. 40.Which is the smallest: 0.746, 0.035, 0.8, 0.83? (a) 0.746 (b) 0.035 (c) 0.8 (d) 0.83

Answer key

  1. 0.37
  2. 14.61
  3. 1
  4. 0.87
  5. 20
  6. 0.004
  7. 11.41
  8. 8
  9. 0.09
  10. 9.37
  11. 5.19
  12. 0.9
  13. 0.65
  14. 10.56
  15. 0.35
  16. 0.4
  17. 4.44
  18. 0.067
  19. 5
  20. 40
  21. 0.039
  22. 17.39
  23. 12.94
  24. 9.61
  25. 0.32
  26. 1
  27. 4.21
  28. 13.23
  29. 10.07
  30. 0.8
  31. 0.36
  32. 0.008
  33. 5
  34. 12.68
  35. 0.056
  36. 20
  37. 9
  38. 2
  39. 0.87
  40. 0.035

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