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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 579 · 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: 0.74, 0.7, 0.698, 0.054? (a) 0.74 (b) 0.7 (c) 0.698 (d) 0.054
  2. 2.9.65 + 8.6 = ? (a) 10.51 (b) 18.15 (c) 18.25 (d) 18.35
  3. 3.1.85 + 2.2 = ? (a) 4.15 (b) 2.07 (c) 4.05 (d) 3.95
  4. 4.4.65 + 7.6 = ? (a) 5.41 (b) 12.15 (c) 12.25 (d) 12.35
  5. 5.What is the value of the digit 4 in 46.381? (a) 40 (b) 0.4 (c) 4 (d) 0.04
  6. 6.9.11 + 1.8 = ? (a) 10.81 (b) 11.01 (c) 10.91 (d) 9.29
  7. 7.Which is the smallest: 0.213, 0.3, 0.38, 0.077? (a) 0.213 (b) 0.3 (c) 0.38 (d) 0.077
  8. 8.Which is the smallest: 0.283, 0.33, 0.3, 0.028? (a) 0.283 (b) 0.33 (c) 0.3 (d) 0.028
  9. 9.What is the value of the digit 8 in 28.315? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  10. 10.Which is the smallest: 0.031, 0.8, 0.89, 0.791? (a) 0.031 (b) 0.8 (c) 0.89 (d) 0.791
  11. 11.Which is the greatest: 0.676, 0.056, 0.77, 0.7? (a) 0.676 (b) 0.056 (c) 0.77 (d) 0.7
  12. 12.3.74 + 3.9 = ? (a) 7.64 (b) 4.13 (c) 7.54 (d) 7.74
  13. 13.4.24 + 5.7 = ? (a) 4.81 (b) 9.84 (c) 10.04 (d) 9.94
  14. 14.What is the value of the digit 5 in 12.586? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  15. 15.What is the value of the digit 3 in 95.386? (a) 0.3 (b) 0.003 (c) 0.03 (d) 3
  16. 16.What is the value of the digit 9 in 42.931? (a) 0.009 (b) 0.9 (c) 9 (d) 0.09
  17. 17.5.85 + 6.9 = ? (a) 12.65 (b) 12.75 (c) 6.54 (d) 12.85
  18. 18.Which is the smallest: 0.81, 0.776, 0.015, 0.8? (a) 0.81 (b) 0.776 (c) 0.015 (d) 0.8
  19. 19.7.35 + 8.4 = ? (a) 15.65 (b) 15.75 (c) 8.19 (d) 15.85
  20. 20.7.55 + 4.1 = ? (a) 11.55 (b) 11.65 (c) 7.96 (d) 11.75
  21. 21.7.69 + 4.4 = ? (a) 11.99 (b) 8.13 (c) 12.19 (d) 12.09
  22. 22.What is the value of the digit 1 in 12.359? (a) 1 (b) 0.01 (c) 0.1 (d) 10
  23. 23.What is the value of the digit 7 in 76.983? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  24. 24.What is the value of the digit 1 in 43.518? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  25. 25.Which is the greatest: 0.065, 0.69, 0.529, 0.6? (a) 0.065 (b) 0.69 (c) 0.529 (d) 0.6
  26. 26.6.86 + 4.4 = ? (a) 7.3 (b) 11.16 (c) 11.26 (d) 11.36
  27. 27.What is the value of the digit 2 in 28.659? (a) 0.02 (b) 0.2 (c) 2 (d) 20
  28. 28.8.45 + 1.6 = ? (a) 9.95 (b) 10.05 (c) 8.61 (d) 10.15
  29. 29.What is the value of the digit 7 in 51.769? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  30. 30.6.75 + 9.6 = ? (a) 7.71 (b) 16.45 (c) 16.35 (d) 16.25
  31. 31.What is the value of the digit 5 in 69.548? (a) 0.005 (b) 0.5 (c) 0.05 (d) 5
  32. 32.What is the value of the digit 2 in 12.864? (a) 2 (b) 0.02 (c) 20 (d) 0.2
  33. 33.4.31 + 9.7 = ? (a) 14.01 (b) 13.91 (c) 14.11 (d) 5.28
  34. 34.What is the value of the digit 7 in 64.237? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  35. 35.1.37 + 2.6 = ? (a) 4.07 (b) 3.87 (c) 1.63 (d) 3.97
  36. 36.What is the value of the digit 8 in 13.826? (a) 0.08 (b) 0.8 (c) 8 (d) 0.008
  37. 37.8.64 + 2.2 = ? (a) 8.86 (b) 10.74 (c) 10.84 (d) 10.94
  38. 38.What is the value of the digit 1 in 37.218? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  39. 39.2.09 + 4.5 = ? (a) 6.49 (b) 6.59 (c) 2.54 (d) 6.69
  40. 40.What is the value of the digit 3 in 21.348? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03

Answer key

  1. 0.74
  2. 18.25
  3. 4.05
  4. 12.25
  5. 40
  6. 10.91
  7. 0.077
  8. 0.028
  9. 8
  10. 0.031
  11. 0.77
  12. 7.64
  13. 9.94
  14. 0.5
  15. 0.3
  16. 0.9
  17. 12.75
  18. 0.015
  19. 15.75
  20. 11.65
  21. 12.09
  22. 10
  23. 70
  24. 0.01
  25. 0.69
  26. 11.26
  27. 20
  28. 10.05
  29. 0.7
  30. 16.35
  31. 0.5
  32. 2
  33. 14.01
  34. 0.007
  35. 3.97
  36. 0.8
  37. 10.84
  38. 0.01
  39. 6.59
  40. 0.3

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