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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 135 · 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 4 in 59.481? (a) 4 (b) 0.04 (c) 0.004 (d) 0.4
  2. 2.Which is the smallest: 0.173, 0.22, 0.086, 0.2? (a) 0.173 (b) 0.22 (c) 0.086 (d) 0.2
  3. 3.1.02 + 5.5 = ? (a) 1.57 (b) 6.42 (c) 6.62 (d) 6.52
  4. 4.What is the value of the digit 3 in 15.263? (a) 0.3 (b) 0.003 (c) 3 (d) 0.03
  5. 5.1.09 + 6.3 = ? (a) 7.39 (b) 7.29 (c) 7.49 (d) 1.72
  6. 6.8.53 + 4.1 = ? (a) 8.94 (b) 12.73 (c) 12.53 (d) 12.63
  7. 7.4.94 + 1.2 = ? (a) 5.06 (b) 6.24 (c) 6.14 (d) 6.04
  8. 8.Which is the greatest: 0.8, 0.078, 0.86, 0.757? (a) 0.8 (b) 0.078 (c) 0.86 (d) 0.757
  9. 9.Which is the greatest: 0.683, 0.75, 0.082, 0.7? (a) 0.683 (b) 0.75 (c) 0.082 (d) 0.7
  10. 10.Which is the greatest: 0.015, 0.614, 0.71, 0.7? (a) 0.015 (b) 0.614 (c) 0.71 (d) 0.7
  11. 11.What is the value of the digit 5 in 35.946? (a) 0.5 (b) 5 (c) 50 (d) 0.05
  12. 12.Which is the greatest: 0.6, 0.034, 0.67, 0.575? (a) 0.6 (b) 0.034 (c) 0.67 (d) 0.575
  13. 13.6.55 + 9.4 = ? (a) 15.95 (b) 15.85 (c) 7.49 (d) 16.05
  14. 14.2.83 + 9.2 = ? (a) 12.13 (b) 11.93 (c) 3.75 (d) 12.03
  15. 15.What is the value of the digit 8 in 89.364? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  16. 16.Which is the greatest: 0.29, 0.034, 0.2, 0.178? (a) 0.29 (b) 0.034 (c) 0.2 (d) 0.178
  17. 17.What is the value of the digit 5 in 16.325? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  18. 18.1.61 + 6.3 = ? (a) 2.24 (b) 7.81 (c) 7.91 (d) 8.01
  19. 19.Which is the smallest: 0.631, 0.053, 0.73, 0.7? (a) 0.631 (b) 0.053 (c) 0.73 (d) 0.7
  20. 20.Which is the greatest: 0.087, 0.7, 0.683, 0.75? (a) 0.087 (b) 0.7 (c) 0.683 (d) 0.75
  21. 21.Which is the greatest: 0.86, 0.749, 0.058, 0.8? (a) 0.86 (b) 0.749 (c) 0.058 (d) 0.8
  22. 22.Which is the smallest: 0.061, 0.434, 0.51, 0.5? (a) 0.061 (b) 0.434 (c) 0.51 (d) 0.5
  23. 23.6.63 + 8.3 = ? (a) 7.46 (b) 15.03 (c) 14.83 (d) 14.93
  24. 24.What is the value of the digit 3 in 18.643? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  25. 25.What is the value of the digit 5 in 58.734? (a) 50 (b) 5 (c) 0.5 (d) 0.05
  26. 26.1.35 + 4.7 = ? (a) 6.15 (b) 6.05 (c) 1.82 (d) 5.95
  27. 27.What is the value of the digit 4 in 14.576? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  28. 28.What is the value of the digit 6 in 46.219? (a) 60 (b) 0.06 (c) 0.6 (d) 6
  29. 29.What is the value of the digit 6 in 61.743? (a) 60 (b) 0.06 (c) 0.6 (d) 6
  30. 30.Which is the smallest: 0.047, 0.418, 0.52, 0.5? (a) 0.047 (b) 0.418 (c) 0.52 (d) 0.5
  31. 31.What is the value of the digit 1 in 21.364? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  32. 32.Which is the greatest: 0.038, 0.6, 0.526, 0.62? (a) 0.038 (b) 0.6 (c) 0.526 (d) 0.62
  33. 33.What is the value of the digit 1 in 81.576? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  34. 34.What is the value of the digit 9 in 96.714? (a) 0.09 (b) 90 (c) 9 (d) 0.9
  35. 35.7.71 + 3.5 = ? (a) 11.11 (b) 11.21 (c) 11.31 (d) 8.06
  36. 36.7.46 + 8.8 = ? (a) 16.26 (b) 16.36 (c) 8.34 (d) 16.16
  37. 37.Which is the greatest: 0.116, 0.2, 0.021, 0.24? (a) 0.116 (b) 0.2 (c) 0.021 (d) 0.24
  38. 38.7.39 + 3.1 = ? (a) 10.49 (b) 10.59 (c) 10.39 (d) 7.7
  39. 39.What is the value of the digit 8 in 98.657? (a) 8 (b) 0.08 (c) 80 (d) 0.8
  40. 40.8.01 + 7.4 = ? (a) 15.31 (b) 15.41 (c) 8.75 (d) 15.51

Answer key

  1. 0.4
  2. 0.086
  3. 6.52
  4. 0.003
  5. 7.39
  6. 12.63
  7. 6.14
  8. 0.86
  9. 0.75
  10. 0.71
  11. 5
  12. 0.67
  13. 15.95
  14. 12.03
  15. 80
  16. 0.29
  17. 0.005
  18. 7.91
  19. 0.053
  20. 0.75
  21. 0.86
  22. 0.061
  23. 14.93
  24. 0.003
  25. 50
  26. 6.05
  27. 4
  28. 6
  29. 60
  30. 0.047
  31. 1
  32. 0.62
  33. 1
  34. 90
  35. 11.21
  36. 16.26
  37. 0.24
  38. 10.49
  39. 8
  40. 15.41

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