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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 487 · 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. 1.6.71 + 7.3 = ? (a) 13.91 (b) 14.11 (c) 14.01 (d) 7.44
  2. 2.Which is the greatest: 0.69, 0.087, 0.6, 0.572? (a) 0.69 (b) 0.087 (c) 0.6 (d) 0.572
  3. 3.5.46 + 8.1 = ? (a) 13.46 (b) 13.66 (c) 13.56 (d) 6.27
  4. 4.4.53 + 1.7 = ? (a) 4.7 (b) 6.13 (c) 6.23 (d) 6.33
  5. 5.What is the value of the digit 2 in 84.712? (a) 0.002 (b) 0.2 (c) 2 (d) 0.02
  6. 6.What is the value of the digit 3 in 13.758? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  7. 7.3.01 + 9.8 = ? (a) 3.99 (b) 12.81 (c) 12.71 (d) 12.91
  8. 8.Which is the smallest: 0.686, 0.032, 0.72, 0.7? (a) 0.686 (b) 0.032 (c) 0.72 (d) 0.7
  9. 9.Which is the greatest: 0.72, 0.612, 0.7, 0.048? (a) 0.72 (b) 0.612 (c) 0.7 (d) 0.048
  10. 10.Which is the smallest: 0.684, 0.052, 0.7, 0.79? (a) 0.684 (b) 0.052 (c) 0.7 (d) 0.79
  11. 11.Which is the greatest: 0.188, 0.29, 0.2, 0.018? (a) 0.188 (b) 0.29 (c) 0.2 (d) 0.018
  12. 12.Which is the greatest: 0.61, 0.528, 0.6, 0.054? (a) 0.61 (b) 0.528 (c) 0.6 (d) 0.054
  13. 13.Which is the smallest: 0.521, 0.63, 0.033, 0.6? (a) 0.521 (b) 0.63 (c) 0.033 (d) 0.6
  14. 14.2.14 + 3.8 = ? (a) 2.52 (b) 5.84 (c) 5.94 (d) 6.04
  15. 15.Which is the greatest: 0.113, 0.29, 0.048, 0.2? (a) 0.113 (b) 0.29 (c) 0.048 (d) 0.2
  16. 16.Which is the greatest: 0.095, 0.2, 0.27, 0.125? (a) 0.095 (b) 0.2 (c) 0.27 (d) 0.125
  17. 17.Which is the greatest: 0.455, 0.057, 0.5, 0.57? (a) 0.455 (b) 0.057 (c) 0.5 (d) 0.57
  18. 18.What is the value of the digit 4 in 15.472? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  19. 19.9.44 + 8.1 = ? (a) 10.25 (b) 17.44 (c) 17.54 (d) 17.64
  20. 20.1.61 + 9.4 = ? (a) 11.01 (b) 10.91 (c) 2.55 (d) 11.11
  21. 21.What is the value of the digit 7 in 85.374? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  22. 22.3.16 + 7.5 = ? (a) 3.91 (b) 10.66 (c) 10.56 (d) 10.76
  23. 23.Which is the greatest: 0.6, 0.025, 0.63, 0.521? (a) 0.6 (b) 0.025 (c) 0.63 (d) 0.521
  24. 24.What is the value of the digit 6 in 23.176? (a) 0.06 (b) 0.6 (c) 0.006 (d) 6
  25. 25.What is the value of the digit 7 in 58.721? (a) 0.7 (b) 7 (c) 0.07 (d) 0.007
  26. 26.7.26 + 5.2 = ? (a) 12.46 (b) 12.36 (c) 7.78 (d) 12.56
  27. 27.1.58 + 5.1 = ? (a) 6.78 (b) 6.68 (c) 6.58 (d) 2.09
  28. 28.Which is the smallest: 0.026, 0.58, 0.413, 0.5? (a) 0.026 (b) 0.58 (c) 0.413 (d) 0.5
  29. 29.Which is the greatest: 0.717, 0.8, 0.87, 0.058? (a) 0.717 (b) 0.8 (c) 0.87 (d) 0.058
  30. 30.What is the value of the digit 3 in 52.943? (a) 0.3 (b) 0.003 (c) 3 (d) 0.03
  31. 31.Which is the smallest: 0.364, 0.083, 0.4, 0.48? (a) 0.364 (b) 0.083 (c) 0.4 (d) 0.48
  32. 32.7.31 + 9.6 = ? (a) 16.81 (b) 16.91 (c) 17.01 (d) 8.27
  33. 33.2.57 + 1.1 = ? (a) 2.68 (b) 3.67 (c) 3.77 (d) 3.57
  34. 34.Which is the greatest: 0.562, 0.082, 0.63, 0.6? (a) 0.562 (b) 0.082 (c) 0.63 (d) 0.6
  35. 35.What is the value of the digit 6 in 79.586? (a) 0.6 (b) 0.006 (c) 6 (d) 0.06
  36. 36.Which is the greatest: 0.012, 0.121, 0.23, 0.2? (a) 0.012 (b) 0.121 (c) 0.23 (d) 0.2
  37. 37.What is the value of the digit 7 in 97.482? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  38. 38.What is the value of the digit 7 in 43.827? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  39. 39.Which is the smallest: 0.051, 0.81, 0.711, 0.8? (a) 0.051 (b) 0.81 (c) 0.711 (d) 0.8
  40. 40.Which is the greatest: 0.422, 0.59, 0.089, 0.5? (a) 0.422 (b) 0.59 (c) 0.089 (d) 0.5

Answer key

  1. 14.01
  2. 0.69
  3. 13.56
  4. 6.23
  5. 0.002
  6. 3
  7. 12.81
  8. 0.032
  9. 0.72
  10. 0.052
  11. 0.29
  12. 0.61
  13. 0.033
  14. 5.94
  15. 0.29
  16. 0.27
  17. 0.57
  18. 0.4
  19. 17.54
  20. 11.01
  21. 0.07
  22. 10.66
  23. 0.63
  24. 0.006
  25. 0.7
  26. 12.46
  27. 6.68
  28. 0.026
  29. 0.87
  30. 0.003
  31. 0.083
  32. 16.91
  33. 3.67
  34. 0.63
  35. 0.006
  36. 0.23
  37. 7
  38. 0.007
  39. 0.051
  40. 0.59

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