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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 497 · 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: 0.32, 0.038, 0.3, 0.293? (a) 0.32 (b) 0.038 (c) 0.3 (d) 0.293
  2. 2.Which is the smallest: 0.714, 0.098, 0.8, 0.82? (a) 0.714 (b) 0.098 (c) 0.8 (d) 0.82
  3. 3.1.99 + 3.1 = ? (a) 2.3 (b) 5.09 (c) 4.99 (d) 5.19
  4. 4.6.38 + 6.9 = ? (a) 7.07 (b) 13.18 (c) 13.28 (d) 13.38
  5. 5.What is the value of the digit 7 in 47.986? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  6. 6.What is the value of the digit 9 in 69.547? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  7. 7.7.83 + 1.6 = ? (a) 7.99 (b) 9.53 (c) 9.33 (d) 9.43
  8. 8.What is the value of the digit 3 in 59.436? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  9. 9.Which is the greatest: 0.425, 0.5, 0.037, 0.53? (a) 0.425 (b) 0.5 (c) 0.037 (d) 0.53
  10. 10.2.91 + 7.1 = ? (a) 9.91 (b) 3.62 (c) 10.11 (d) 10.01
  11. 11.6.81 + 2.7 = ? (a) 9.61 (b) 7.08 (c) 9.41 (d) 9.51
  12. 12.5.21 + 7.6 = ? (a) 5.97 (b) 12.71 (c) 12.91 (d) 12.81
  13. 13.What is the value of the digit 9 in 29.168? (a) 0.9 (b) 90 (c) 9 (d) 0.09
  14. 14.5.89 + 4.9 = ? (a) 10.89 (b) 10.79 (c) 6.38 (d) 10.69
  15. 15.Which is the greatest: 0.4, 0.059, 0.48, 0.362? (a) 0.4 (b) 0.059 (c) 0.48 (d) 0.362
  16. 16.5.74 + 7.7 = ? (a) 13.54 (b) 13.34 (c) 13.44 (d) 6.51
  17. 17.7.71 + 6.1 = ? (a) 13.91 (b) 8.32 (c) 13.81 (d) 13.71
  18. 18.3.18 + 1.7 = ? (a) 4.88 (b) 3.35 (c) 4.78 (d) 4.98
  19. 19.6.55 + 3.3 = ? (a) 9.75 (b) 9.95 (c) 9.85 (d) 6.88
  20. 20.Which is the smallest: 0.082, 0.342, 0.42, 0.4? (a) 0.082 (b) 0.342 (c) 0.42 (d) 0.4
  21. 21.Which is the greatest: 0.561, 0.64, 0.6, 0.053? (a) 0.561 (b) 0.64 (c) 0.6 (d) 0.053
  22. 22.Which is the smallest: 0.082, 0.459, 0.5, 0.51? (a) 0.082 (b) 0.459 (c) 0.5 (d) 0.51
  23. 23.5.28 + 1.1 = ? (a) 5.39 (b) 6.28 (c) 6.38 (d) 6.48
  24. 24.1.98 + 5.8 = ? (a) 7.68 (b) 7.88 (c) 2.56 (d) 7.78
  25. 25.Which is the smallest: 0.667, 0.71, 0.7, 0.091? (a) 0.667 (b) 0.71 (c) 0.7 (d) 0.091
  26. 26.What is the value of the digit 9 in 42.591? (a) 0.009 (b) 9 (c) 0.9 (d) 0.09
  27. 27.Which is the greatest: 0.89, 0.8, 0.717, 0.023? (a) 0.89 (b) 0.8 (c) 0.717 (d) 0.023
  28. 28.8.51 + 7.8 = ? (a) 16.21 (b) 16.31 (c) 9.29 (d) 16.41
  29. 29.1.37 + 8.5 = ? (a) 9.87 (b) 9.77 (c) 9.97 (d) 2.22
  30. 30.What is the value of the digit 7 in 78.394? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  31. 31.Which is the greatest: 0.36, 0.291, 0.062, 0.3? (a) 0.36 (b) 0.291 (c) 0.062 (d) 0.3
  32. 32.4.13 + 7.1 = ? (a) 11.33 (b) 4.84 (c) 11.23 (d) 11.13
  33. 33.Which is the greatest: 0.84, 0.086, 0.718, 0.8? (a) 0.84 (b) 0.086 (c) 0.718 (d) 0.8
  34. 34.What is the value of the digit 5 in 85.976? (a) 50 (b) 0.05 (c) 0.5 (d) 5
  35. 35.What is the value of the digit 8 in 73.581? (a) 0.08 (b) 0.008 (c) 8 (d) 0.8
  36. 36.Which is the smallest: 0.87, 0.8, 0.723, 0.064? (a) 0.87 (b) 0.8 (c) 0.723 (d) 0.064
  37. 37.What is the value of the digit 3 in 54.263? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  38. 38.What is the value of the digit 5 in 25.691? (a) 5 (b) 50 (c) 0.5 (d) 0.05
  39. 39.4.56 + 4.8 = ? (a) 9.46 (b) 9.36 (c) 5.04 (d) 9.26
  40. 40.Which is the smallest: 0.249, 0.32, 0.3, 0.018? (a) 0.249 (b) 0.32 (c) 0.3 (d) 0.018

Answer key

  1. 0.32
  2. 0.098
  3. 5.09
  4. 13.28
  5. 7
  6. 9
  7. 9.43
  8. 0.03
  9. 0.53
  10. 10.01
  11. 9.51
  12. 12.81
  13. 9
  14. 10.79
  15. 0.48
  16. 13.44
  17. 13.81
  18. 4.88
  19. 9.85
  20. 0.082
  21. 0.64
  22. 0.082
  23. 6.38
  24. 7.78
  25. 0.091
  26. 0.09
  27. 0.89
  28. 16.31
  29. 9.87
  30. 70
  31. 0.36
  32. 11.23
  33. 0.84
  34. 5
  35. 0.08
  36. 0.064
  37. 0.003
  38. 5
  39. 9.36
  40. 0.018

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