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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 707 · 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. 1.6.51 + 6.5 = ? (a) 13.11 (b) 7.16 (c) 12.91 (d) 13.01
  2. 2.4.59 + 5.2 = ? (a) 9.69 (b) 5.11 (c) 9.79 (d) 9.89
  3. 3.2.32 + 4.1 = ? (a) 6.42 (b) 2.73 (c) 6.52 (d) 6.32
  4. 4.What is the value of the digit 6 in 76.481? (a) 60 (b) 0.06 (c) 0.6 (d) 6
  5. 5.What is the value of the digit 2 in 82.657? (a) 0.2 (b) 2 (c) 20 (d) 0.02
  6. 6.Which is the smallest: 0.069, 0.5, 0.419, 0.52? (a) 0.069 (b) 0.5 (c) 0.419 (d) 0.52
  7. 7.2.23 + 1.7 = ? (a) 3.93 (b) 3.83 (c) 4.03 (d) 2.4
  8. 8.What is the value of the digit 9 in 37.529? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  9. 9.What is the value of the digit 3 in 73.612? (a) 0.3 (b) 30 (c) 3 (d) 0.03
  10. 10.Which is the greatest: 0.056, 0.5, 0.52, 0.491? (a) 0.056 (b) 0.5 (c) 0.52 (d) 0.491
  11. 11.Which is the smallest: 0.87, 0.727, 0.031, 0.8? (a) 0.87 (b) 0.727 (c) 0.031 (d) 0.8
  12. 12.Which is the smallest: 0.4, 0.49, 0.395, 0.054? (a) 0.4 (b) 0.49 (c) 0.395 (d) 0.054
  13. 13.What is the value of the digit 6 in 46.258? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  14. 14.8.51 + 7.1 = ? (a) 15.61 (b) 15.71 (c) 15.51 (d) 9.22
  15. 15.What is the value of the digit 5 in 57.863? (a) 5 (b) 0.05 (c) 0.5 (d) 50
  16. 16.3.69 + 7.2 = ? (a) 10.79 (b) 10.99 (c) 10.89 (d) 4.41
  17. 17.Which is the greatest: 0.713, 0.8, 0.014, 0.82? (a) 0.713 (b) 0.8 (c) 0.014 (d) 0.82
  18. 18.What is the value of the digit 2 in 51.942? (a) 0.02 (b) 0.002 (c) 2 (d) 0.2
  19. 19.Which is the greatest: 0.5, 0.53, 0.475, 0.091? (a) 0.5 (b) 0.53 (c) 0.475 (d) 0.091
  20. 20.What is the value of the digit 9 in 65.349? (a) 0.9 (b) 0.09 (c) 0.009 (d) 9
  21. 21.Which is the greatest: 0.014, 0.6, 0.587, 0.68? (a) 0.014 (b) 0.6 (c) 0.587 (d) 0.68
  22. 22.Which is the smallest: 0.4, 0.072, 0.325, 0.44? (a) 0.4 (b) 0.072 (c) 0.325 (d) 0.44
  23. 23.8.36 + 8.8 = ? (a) 17.26 (b) 17.06 (c) 17.16 (d) 9.24
  24. 24.Which is the smallest: 0.4, 0.329, 0.023, 0.47? (a) 0.4 (b) 0.329 (c) 0.023 (d) 0.47
  25. 25.Which is the smallest: 0.767, 0.89, 0.013, 0.8? (a) 0.767 (b) 0.89 (c) 0.013 (d) 0.8
  26. 26.8.03 + 2.5 = ? (a) 10.53 (b) 10.63 (c) 8.28 (d) 10.43
  27. 27.5.88 + 3.6 = ? (a) 9.58 (b) 9.48 (c) 9.38 (d) 6.24
  28. 28.What is the value of the digit 6 in 96.482? (a) 60 (b) 0.06 (c) 6 (d) 0.6
  29. 29.4.74 + 2.1 = ? (a) 6.94 (b) 6.74 (c) 4.95 (d) 6.84
  30. 30.5.06 + 8.6 = ? (a) 13.76 (b) 13.66 (c) 13.56 (d) 5.92
  31. 31.3.22 + 4.1 = ? (a) 7.22 (b) 3.63 (c) 7.42 (d) 7.32
  32. 32.What is the value of the digit 7 in 23.769? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  33. 33.What is the value of the digit 8 in 27.368? (a) 0.008 (b) 0.08 (c) 8 (d) 0.8
  34. 34.Which is the greatest: 0.137, 0.2, 0.078, 0.26? (a) 0.137 (b) 0.2 (c) 0.078 (d) 0.26
  35. 35.9.17 + 5.2 = ? (a) 9.69 (b) 14.47 (c) 14.27 (d) 14.37
  36. 36.6.61 + 3.1 = ? (a) 9.71 (b) 6.92 (c) 9.81 (d) 9.61
  37. 37.Which is the smallest: 0.437, 0.5, 0.53, 0.027? (a) 0.437 (b) 0.5 (c) 0.53 (d) 0.027
  38. 38.Which is the greatest: 0.099, 0.6, 0.559, 0.65? (a) 0.099 (b) 0.6 (c) 0.559 (d) 0.65
  39. 39.9.69 + 7.5 = ? (a) 17.19 (b) 10.44 (c) 17.29 (d) 17.09
  40. 40.6.03 + 2.4 = ? (a) 8.33 (b) 6.27 (c) 8.53 (d) 8.43

Answer key

  1. 13.01
  2. 9.79
  3. 6.42
  4. 6
  5. 2
  6. 0.069
  7. 3.93
  8. 0.009
  9. 3
  10. 0.52
  11. 0.031
  12. 0.054
  13. 6
  14. 15.61
  15. 50
  16. 10.89
  17. 0.82
  18. 0.002
  19. 0.53
  20. 0.009
  21. 0.68
  22. 0.072
  23. 17.16
  24. 0.023
  25. 0.013
  26. 10.53
  27. 9.48
  28. 6
  29. 6.84
  30. 13.66
  31. 7.32
  32. 0.7
  33. 0.008
  34. 0.26
  35. 14.37
  36. 9.71
  37. 0.027
  38. 0.65
  39. 17.19
  40. 8.43

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