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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 726 · 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: 0.096, 0.755, 0.8, 0.86? (a) 0.096 (b) 0.755 (c) 0.8 (d) 0.86
  2. 2.Which is the smallest: 0.72, 0.021, 0.7, 0.685? (a) 0.72 (b) 0.021 (c) 0.7 (d) 0.685
  3. 3.Which is the greatest: 0.5, 0.057, 0.53, 0.422? (a) 0.5 (b) 0.057 (c) 0.53 (d) 0.422
  4. 4.What is the value of the digit 5 in 58.163? (a) 5 (b) 0.5 (c) 0.05 (d) 50
  5. 5.7.96 + 9.5 = ? (a) 8.91 (b) 17.36 (c) 17.46 (d) 17.56
  6. 6.7.93 + 3.9 = ? (a) 11.73 (b) 11.83 (c) 8.32 (d) 11.93
  7. 7.Which is the greatest: 0.169, 0.049, 0.2, 0.27? (a) 0.169 (b) 0.049 (c) 0.2 (d) 0.27
  8. 8.What is the value of the digit 9 in 64.923? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  9. 9.7.12 + 7.2 = ? (a) 7.84 (b) 14.32 (c) 14.22 (d) 14.42
  10. 10.7.84 + 8.8 = ? (a) 16.64 (b) 16.74 (c) 16.54 (d) 8.72
  11. 11.What is the value of the digit 2 in 89.275? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  12. 12.8.26 + 6.1 = ? (a) 14.26 (b) 14.46 (c) 14.36 (d) 8.87
  13. 13.What is the value of the digit 3 in 32.689? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  14. 14.2.21 + 6.2 = ? (a) 8.41 (b) 8.51 (c) 2.83 (d) 8.31
  15. 15.What is the value of the digit 8 in 67.824? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8
  16. 16.3.62 + 5.1 = ? (a) 8.72 (b) 4.13 (c) 8.82 (d) 8.62
  17. 17.5.95 + 7.3 = ? (a) 6.68 (b) 13.15 (c) 13.25 (d) 13.35
  18. 18.7.35 + 9.1 = ? (a) 8.26 (b) 16.55 (c) 16.35 (d) 16.45
  19. 19.Which is the greatest: 0.32, 0.3, 0.046, 0.253? (a) 0.32 (b) 0.3 (c) 0.046 (d) 0.253
  20. 20.What is the value of the digit 5 in 46.539? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  21. 21.Which is the greatest: 0.623, 0.028, 0.78, 0.7? (a) 0.623 (b) 0.028 (c) 0.78 (d) 0.7
  22. 22.1.56 + 2.7 = ? (a) 4.36 (b) 4.26 (c) 1.83 (d) 4.16
  23. 23.6.37 + 5.4 = ? (a) 11.87 (b) 11.77 (c) 11.67 (d) 6.91
  24. 24.1.31 + 8.3 = ? (a) 2.14 (b) 9.71 (c) 9.61 (d) 9.51
  25. 25.What is the value of the digit 5 in 48.975? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005
  26. 26.What is the value of the digit 7 in 64.357? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  27. 27.What is the value of the digit 3 in 41.893? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  28. 28.What is the value of the digit 1 in 81.534? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  29. 29.5.26 + 7.9 = ? (a) 13.16 (b) 13.26 (c) 13.06 (d) 6.05
  30. 30.Which is the greatest: 0.37, 0.257, 0.046, 0.3? (a) 0.37 (b) 0.257 (c) 0.046 (d) 0.3
  31. 31.5.53 + 6.4 = ? (a) 6.17 (b) 11.83 (c) 12.03 (d) 11.93
  32. 32.What is the value of the digit 9 in 47.298? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  33. 33.5.29 + 1.1 = ? (a) 6.29 (b) 6.49 (c) 6.39 (d) 5.4
  34. 34.Which is the greatest: 0.3, 0.252, 0.083, 0.31? (a) 0.3 (b) 0.252 (c) 0.083 (d) 0.31
  35. 35.Which is the smallest: 0.77, 0.675, 0.064, 0.7? (a) 0.77 (b) 0.675 (c) 0.064 (d) 0.7
  36. 36.What is the value of the digit 6 in 65.382? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  37. 37.5.66 + 1.3 = ? (a) 5.79 (b) 6.96 (c) 6.86 (d) 7.06
  38. 38.What is the value of the digit 1 in 83.169? (a) 0.001 (b) 1 (c) 0.1 (d) 0.01
  39. 39.Which is the smallest: 0.322, 0.4, 0.44, 0.039? (a) 0.322 (b) 0.4 (c) 0.44 (d) 0.039
  40. 40.2.37 + 1.7 = ? (a) 2.54 (b) 4.07 (c) 3.97 (d) 4.17

Answer key

  1. 0.86
  2. 0.021
  3. 0.53
  4. 50
  5. 17.46
  6. 11.83
  7. 0.27
  8. 0.9
  9. 14.32
  10. 16.64
  11. 0.2
  12. 14.36
  13. 30
  14. 8.41
  15. 0.8
  16. 8.72
  17. 13.25
  18. 16.45
  19. 0.32
  20. 0.5
  21. 0.78
  22. 4.26
  23. 11.77
  24. 9.61
  25. 0.005
  26. 0.007
  27. 0.003
  28. 1
  29. 13.16
  30. 0.37
  31. 11.93
  32. 0.09
  33. 6.39
  34. 0.31
  35. 0.064
  36. 60
  37. 6.96
  38. 0.1
  39. 0.039
  40. 4.07

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