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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 711 · 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. 1.2.87 + 4.6 = ? (a) 7.57 (b) 7.37 (c) 3.33 (d) 7.47
  2. 2.Which is the smallest: 0.059, 0.44, 0.4, 0.392? (a) 0.059 (b) 0.44 (c) 0.4 (d) 0.392
  3. 3.6.11 + 8.2 = ? (a) 14.41 (b) 14.31 (c) 14.21 (d) 6.93
  4. 4.4.34 + 5.2 = ? (a) 9.44 (b) 9.64 (c) 4.86 (d) 9.54
  5. 5.6.36 + 5.7 = ? (a) 12.06 (b) 12.16 (c) 6.93 (d) 11.96
  6. 6.2.66 + 6.1 = ? (a) 8.66 (b) 8.76 (c) 3.27 (d) 8.86
  7. 7.1.94 + 3.8 = ? (a) 5.74 (b) 2.32 (c) 5.64 (d) 5.84
  8. 8.What is the value of the digit 1 in 16.748? (a) 0.1 (b) 10 (c) 1 (d) 0.01
  9. 9.3.87 + 3.7 = ? (a) 7.67 (b) 7.57 (c) 4.24 (d) 7.47
  10. 10.Which is the smallest: 0.081, 0.4, 0.42, 0.355? (a) 0.081 (b) 0.4 (c) 0.42 (d) 0.355
  11. 11.What is the value of the digit 8 in 23.851? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  12. 12.What is the value of the digit 7 in 57.618? (a) 70 (b) 0.07 (c) 7 (d) 0.7
  13. 13.Which is the smallest: 0.8, 0.81, 0.719, 0.026? (a) 0.8 (b) 0.81 (c) 0.719 (d) 0.026
  14. 14.What is the value of the digit 3 in 36.148? (a) 3 (b) 30 (c) 0.03 (d) 0.3
  15. 15.6.27 + 7.3 = ? (a) 13.57 (b) 13.47 (c) 13.67 (d) 7
  16. 16.8.82 + 3.3 = ? (a) 12.02 (b) 9.15 (c) 12.12 (d) 12.22
  17. 17.Which is the greatest: 0.2, 0.22, 0.022, 0.195? (a) 0.2 (b) 0.22 (c) 0.022 (d) 0.195
  18. 18.Which is the smallest: 0.022, 0.2, 0.29, 0.165? (a) 0.022 (b) 0.2 (c) 0.29 (d) 0.165
  19. 19.Which is the greatest: 0.82, 0.737, 0.086, 0.8? (a) 0.82 (b) 0.737 (c) 0.086 (d) 0.8
  20. 20.7.82 + 1.1 = ? (a) 8.82 (b) 9.02 (c) 7.93 (d) 8.92
  21. 21.Which is the smallest: 0.626, 0.7, 0.087, 0.73? (a) 0.626 (b) 0.7 (c) 0.087 (d) 0.73
  22. 22.What is the value of the digit 1 in 72.418? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  23. 23.9.71 + 9.6 = ? (a) 19.31 (b) 19.41 (c) 10.67 (d) 19.21
  24. 24.Which is the greatest: 0.38, 0.244, 0.067, 0.3? (a) 0.38 (b) 0.244 (c) 0.067 (d) 0.3
  25. 25.5.71 + 5.8 = ? (a) 11.51 (b) 11.61 (c) 6.29 (d) 11.41
  26. 26.What is the value of the digit 7 in 76.531? (a) 0.07 (b) 7 (c) 0.7 (d) 70
  27. 27.Which is the smallest: 0.65, 0.073, 0.551, 0.6? (a) 0.65 (b) 0.073 (c) 0.551 (d) 0.6
  28. 28.2.95 + 1.1 = ? (a) 3.95 (b) 4.05 (c) 3.06 (d) 4.15
  29. 29.What is the value of the digit 4 in 92.416? (a) 0.004 (b) 0.4 (c) 4 (d) 0.04
  30. 30.What is the value of the digit 2 in 27.354? (a) 2 (b) 0.02 (c) 20 (d) 0.2
  31. 31.4.16 + 9.7 = ? (a) 13.76 (b) 13.86 (c) 13.96 (d) 5.13
  32. 32.4.97 + 5.9 = ? (a) 10.97 (b) 5.56 (c) 10.77 (d) 10.87
  33. 33.Which is the smallest: 0.57, 0.417, 0.088, 0.5? (a) 0.57 (b) 0.417 (c) 0.088 (d) 0.5
  34. 34.Which is the smallest: 0.014, 0.42, 0.4, 0.314? (a) 0.014 (b) 0.42 (c) 0.4 (d) 0.314
  35. 35.3.59 + 9.3 = ? (a) 12.99 (b) 4.52 (c) 12.79 (d) 12.89
  36. 36.Which is the smallest: 0.7, 0.694, 0.013, 0.75? (a) 0.7 (b) 0.694 (c) 0.013 (d) 0.75
  37. 37.Which is the greatest: 0.45, 0.325, 0.4, 0.098? (a) 0.45 (b) 0.325 (c) 0.4 (d) 0.098
  38. 38.2.68 + 2.3 = ? (a) 4.98 (b) 5.08 (c) 4.88 (d) 2.91
  39. 39.1.63 + 9.9 = ? (a) 11.63 (b) 11.43 (c) 11.53 (d) 2.62
  40. 40.8.32 + 1.5 = ? (a) 9.72 (b) 9.92 (c) 9.82 (d) 8.47

Answer key

  1. 7.47
  2. 0.059
  3. 14.31
  4. 9.54
  5. 12.06
  6. 8.76
  7. 5.74
  8. 10
  9. 7.57
  10. 0.081
  11. 0.8
  12. 7
  13. 0.026
  14. 30
  15. 13.57
  16. 12.12
  17. 0.22
  18. 0.022
  19. 0.82
  20. 8.92
  21. 0.087
  22. 0.01
  23. 19.31
  24. 0.38
  25. 11.51
  26. 70
  27. 0.073
  28. 4.05
  29. 0.4
  30. 20
  31. 13.86
  32. 10.87
  33. 0.088
  34. 0.014
  35. 12.89
  36. 0.013
  37. 0.45
  38. 4.98
  39. 11.53
  40. 9.82

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