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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 230 · 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.What is the value of the digit 1 in 14.598? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  2. 2.2.11 + 2.9 = ? (a) 5.11 (b) 4.91 (c) 2.4 (d) 5.01
  3. 3.What is the value of the digit 9 in 46.859? (a) 0.9 (b) 0.09 (c) 0.009 (d) 9
  4. 4.Which is the smallest: 0.046, 0.76, 0.7, 0.689? (a) 0.046 (b) 0.76 (c) 0.7 (d) 0.689
  5. 5.8.67 + 2.6 = ? (a) 11.17 (b) 11.37 (c) 8.93 (d) 11.27
  6. 6.6.73 + 2.1 = ? (a) 8.73 (b) 8.83 (c) 6.94 (d) 8.93
  7. 7.What is the value of the digit 2 in 23.675? (a) 0.2 (b) 0.02 (c) 20 (d) 2
  8. 8.What is the value of the digit 7 in 37.482? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  9. 9.9.11 + 8.2 = ? (a) 9.93 (b) 17.31 (c) 17.21 (d) 17.41
  10. 10.What is the value of the digit 3 in 24.873? (a) 0.03 (b) 3 (c) 0.003 (d) 0.3
  11. 11.Which is the smallest: 0.399, 0.4, 0.41, 0.027? (a) 0.399 (b) 0.4 (c) 0.41 (d) 0.027
  12. 12.Which is the smallest: 0.438, 0.085, 0.5, 0.53? (a) 0.438 (b) 0.085 (c) 0.5 (d) 0.53
  13. 13.7.36 + 2.4 = ? (a) 7.6 (b) 9.66 (c) 9.86 (d) 9.76
  14. 14.Which is the greatest: 0.722, 0.8, 0.018, 0.85? (a) 0.722 (b) 0.8 (c) 0.018 (d) 0.85
  15. 15.What is the value of the digit 1 in 19.642? (a) 0.1 (b) 0.01 (c) 1 (d) 10
  16. 16.Which is the smallest: 0.42, 0.4, 0.096, 0.392? (a) 0.42 (b) 0.4 (c) 0.096 (d) 0.392
  17. 17.Which is the smallest: 0.768, 0.047, 0.8, 0.87? (a) 0.768 (b) 0.047 (c) 0.8 (d) 0.87
  18. 18.6.54 + 8.4 = ? (a) 7.38 (b) 15.04 (c) 14.94 (d) 14.84
  19. 19.What is the value of the digit 4 in 43.168? (a) 4 (b) 40 (c) 0.04 (d) 0.4
  20. 20.What is the value of the digit 3 in 81.943? (a) 0.03 (b) 3 (c) 0.003 (d) 0.3
  21. 21.Which is the greatest: 0.613, 0.062, 0.7, 0.79? (a) 0.613 (b) 0.062 (c) 0.7 (d) 0.79
  22. 22.9.46 + 9.8 = ? (a) 10.44 (b) 19.26 (c) 19.16 (d) 19.36
  23. 23.Which is the smallest: 0.046, 0.454, 0.5, 0.55? (a) 0.046 (b) 0.454 (c) 0.5 (d) 0.55
  24. 24.5.81 + 1.9 = ? (a) 7.81 (b) 7.61 (c) 6 (d) 7.71
  25. 25.1.59 + 9.8 = ? (a) 11.49 (b) 11.39 (c) 2.57 (d) 11.29
  26. 26.9.09 + 3.7 = ? (a) 9.46 (b) 12.79 (c) 12.89 (d) 12.69
  27. 27.Which is the smallest: 0.36, 0.3, 0.285, 0.021? (a) 0.36 (b) 0.3 (c) 0.285 (d) 0.021
  28. 28.Which is the smallest: 0.592, 0.66, 0.028, 0.6? (a) 0.592 (b) 0.66 (c) 0.028 (d) 0.6
  29. 29.What is the value of the digit 5 in 95.783? (a) 0.5 (b) 5 (c) 50 (d) 0.05
  30. 30.What is the value of the digit 6 in 84.763? (a) 0.006 (b) 6 (c) 0.6 (d) 0.06
  31. 31.4.73 + 1.5 = ? (a) 6.13 (b) 6.33 (c) 6.23 (d) 4.88
  32. 32.Which is the smallest: 0.683, 0.023, 0.72, 0.7? (a) 0.683 (b) 0.023 (c) 0.72 (d) 0.7
  33. 33.9.29 + 9.1 = ? (a) 10.2 (b) 18.29 (c) 18.39 (d) 18.49
  34. 34.What is the value of the digit 3 in 63.759? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  35. 35.Which is the smallest: 0.74, 0.648, 0.063, 0.7? (a) 0.74 (b) 0.648 (c) 0.063 (d) 0.7
  36. 36.What is the value of the digit 6 in 59.638? (a) 0.6 (b) 0.06 (c) 0.006 (d) 6
  37. 37.What is the value of the digit 1 in 79.513? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  38. 38.What is the value of the digit 3 in 97.324? (a) 0.03 (b) 0.003 (c) 0.3 (d) 3
  39. 39.7.41 + 2.9 = ? (a) 7.7 (b) 10.41 (c) 10.31 (d) 10.21
  40. 40.Which is the greatest: 0.073, 0.48, 0.313, 0.4? (a) 0.073 (b) 0.48 (c) 0.313 (d) 0.4

Answer key

  1. 10
  2. 5.01
  3. 0.009
  4. 0.046
  5. 11.27
  6. 8.83
  7. 20
  8. 7
  9. 17.31
  10. 0.003
  11. 0.027
  12. 0.085
  13. 9.76
  14. 0.85
  15. 10
  16. 0.096
  17. 0.047
  18. 14.94
  19. 40
  20. 0.003
  21. 0.79
  22. 19.26
  23. 0.046
  24. 7.71
  25. 11.39
  26. 12.79
  27. 0.021
  28. 0.028
  29. 5
  30. 0.06
  31. 6.23
  32. 0.023
  33. 18.39
  34. 3
  35. 0.063
  36. 0.6
  37. 0.01
  38. 0.3
  39. 10.31
  40. 0.48

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