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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 383 · 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. 1.5.39 + 5.7 = ? (a) 11.09 (b) 5.96 (c) 11.19 (d) 10.99
  2. 2.4.17 + 6.1 = ? (a) 10.17 (b) 10.37 (c) 10.27 (d) 4.78
  3. 3.Which is the smallest: 0.67, 0.535, 0.6, 0.053? (a) 0.67 (b) 0.535 (c) 0.6 (d) 0.053
  4. 4.Which is the greatest: 0.64, 0.6, 0.027, 0.596? (a) 0.64 (b) 0.6 (c) 0.027 (d) 0.596
  5. 5.9.06 + 3.9 = ? (a) 13.06 (b) 9.45 (c) 12.86 (d) 12.96
  6. 6.What is the value of the digit 8 in 18.563? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  7. 7.8.52 + 3.1 = ? (a) 8.83 (b) 11.62 (c) 11.72 (d) 11.52
  8. 8.Which is the greatest: 0.062, 0.65, 0.6, 0.595? (a) 0.062 (b) 0.65 (c) 0.6 (d) 0.595
  9. 9.What is the value of the digit 8 in 49.815? (a) 8 (b) 0.8 (c) 0.08 (d) 0.008
  10. 10.What is the value of the digit 4 in 41.758? (a) 0.4 (b) 4 (c) 40 (d) 0.04
  11. 11.4.46 + 9.4 = ? (a) 13.96 (b) 5.4 (c) 13.86 (d) 13.76
  12. 12.What is the value of the digit 5 in 35.149? (a) 0.5 (b) 0.05 (c) 5 (d) 50
  13. 13.What is the value of the digit 5 in 39.745? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5
  14. 14.Which is the smallest: 0.013, 0.8, 0.769, 0.85? (a) 0.013 (b) 0.8 (c) 0.769 (d) 0.85
  15. 15.What is the value of the digit 1 in 57.314? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  16. 16.4.64 + 7.7 = ? (a) 12.24 (b) 5.41 (c) 12.34 (d) 12.44
  17. 17.6.62 + 1.5 = ? (a) 8.02 (b) 6.77 (c) 8.12 (d) 8.22
  18. 18.1.61 + 2.1 = ? (a) 3.61 (b) 3.81 (c) 3.71 (d) 1.82
  19. 19.6.84 + 4.1 = ? (a) 7.25 (b) 10.84 (c) 11.04 (d) 10.94
  20. 20.1.23 + 2.1 = ? (a) 3.33 (b) 1.44 (c) 3.23 (d) 3.43
  21. 21.2.99 + 9.8 = ? (a) 12.89 (b) 12.69 (c) 12.79 (d) 3.97
  22. 22.What is the value of the digit 2 in 21.436? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  23. 23.Which is the smallest: 0.8, 0.088, 0.81, 0.773? (a) 0.8 (b) 0.088 (c) 0.81 (d) 0.773
  24. 24.What is the value of the digit 6 in 71.486? (a) 0.06 (b) 0.006 (c) 6 (d) 0.6
  25. 25.8.09 + 5.1 = ? (a) 13.19 (b) 13.29 (c) 8.6 (d) 13.09
  26. 26.What is the value of the digit 3 in 53.198? (a) 3 (b) 0.03 (c) 0.3 (d) 30
  27. 27.Which is the greatest: 0.56, 0.054, 0.487, 0.5? (a) 0.56 (b) 0.054 (c) 0.487 (d) 0.5
  28. 28.5.01 + 1.4 = ? (a) 6.31 (b) 5.15 (c) 6.41 (d) 6.51
  29. 29.What is the value of the digit 6 in 84.126? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  30. 30.Which is the greatest: 0.89, 0.775, 0.8, 0.041? (a) 0.89 (b) 0.775 (c) 0.8 (d) 0.041
  31. 31.What is the value of the digit 5 in 58.391? (a) 5 (b) 50 (c) 0.05 (d) 0.5
  32. 32.Which is the smallest: 0.5, 0.57, 0.431, 0.042? (a) 0.5 (b) 0.57 (c) 0.431 (d) 0.042
  33. 33.What is the value of the digit 4 in 64.792? (a) 0.4 (b) 4 (c) 40 (d) 0.04
  34. 34.Which is the greatest: 0.22, 0.146, 0.061, 0.2? (a) 0.22 (b) 0.146 (c) 0.061 (d) 0.2
  35. 35.3.86 + 7.1 = ? (a) 4.57 (b) 11.06 (c) 10.86 (d) 10.96
  36. 36.What is the value of the digit 7 in 72.193? (a) 7 (b) 0.7 (c) 0.07 (d) 70
  37. 37.7.34 + 7.3 = ? (a) 14.64 (b) 14.54 (c) 14.74 (d) 8.07
  38. 38.Which is the smallest: 0.26, 0.037, 0.2, 0.116? (a) 0.26 (b) 0.037 (c) 0.2 (d) 0.116
  39. 39.What is the value of the digit 5 in 94.568? (a) 0.05 (b) 5 (c) 0.5 (d) 0.005
  40. 40.What is the value of the digit 1 in 35.182? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01

Answer key

  1. 11.09
  2. 10.27
  3. 0.053
  4. 0.64
  5. 12.96
  6. 8
  7. 11.62
  8. 0.65
  9. 0.8
  10. 40
  11. 13.86
  12. 5
  13. 0.005
  14. 0.013
  15. 0.01
  16. 12.34
  17. 8.12
  18. 3.71
  19. 10.94
  20. 3.33
  21. 12.79
  22. 20
  23. 0.088
  24. 0.006
  25. 13.19
  26. 3
  27. 0.56
  28. 6.41
  29. 0.006
  30. 0.89
  31. 50
  32. 0.042
  33. 4
  34. 0.22
  35. 10.96
  36. 70
  37. 14.64
  38. 0.037
  39. 0.5
  40. 0.1

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