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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 753 · 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 smallest: 0.086, 0.8, 0.722, 0.86? (a) 0.086 (b) 0.8 (c) 0.722 (d) 0.86
  2. 2.What is the value of the digit 4 in 24.153? (a) 0.4 (b) 4 (c) 0.04 (d) 40
  3. 3.Which is the greatest: 0.014, 0.122, 0.2, 0.27? (a) 0.014 (b) 0.122 (c) 0.2 (d) 0.27
  4. 4.Which is the smallest: 0.32, 0.278, 0.3, 0.063? (a) 0.32 (b) 0.278 (c) 0.3 (d) 0.063
  5. 5.1.43 + 8.6 = ? (a) 2.29 (b) 10.13 (c) 9.93 (d) 10.03
  6. 6.What is the value of the digit 6 in 42.765? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06
  7. 7.4.01 + 8.1 = ? (a) 4.82 (b) 12.21 (c) 12.11 (d) 12.01
  8. 8.4.51 + 1.6 = ? (a) 4.67 (b) 6.21 (c) 6.11 (d) 6.01
  9. 9.What is the value of the digit 6 in 61.529? (a) 6 (b) 0.6 (c) 60 (d) 0.06
  10. 10.8.65 + 5.7 = ? (a) 14.45 (b) 14.25 (c) 9.22 (d) 14.35
  11. 11.2.95 + 5.8 = ? (a) 3.53 (b) 8.75 (c) 8.85 (d) 8.65
  12. 12.9.31 + 2.7 = ? (a) 11.91 (b) 9.58 (c) 12.11 (d) 12.01
  13. 13.What is the value of the digit 3 in 35.712? (a) 0.03 (b) 3 (c) 0.3 (d) 30
  14. 14.What is the value of the digit 1 in 13.897? (a) 0.1 (b) 0.01 (c) 10 (d) 1
  15. 15.Which is the greatest: 0.737, 0.89, 0.086, 0.8? (a) 0.737 (b) 0.89 (c) 0.086 (d) 0.8
  16. 16.What is the value of the digit 5 in 86.235? (a) 0.005 (b) 0.05 (c) 0.5 (d) 5
  17. 17.2.57 + 1.8 = ? (a) 4.27 (b) 4.37 (c) 2.75 (d) 4.47
  18. 18.9.73 + 5.1 = ? (a) 14.93 (b) 10.24 (c) 14.73 (d) 14.83
  19. 19.What is the value of the digit 1 in 62.419? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  20. 20.Which is the smallest: 0.027, 0.4, 0.49, 0.327? (a) 0.027 (b) 0.4 (c) 0.49 (d) 0.327
  21. 21.Which is the greatest: 0.71, 0.041, 0.636, 0.7? (a) 0.71 (b) 0.041 (c) 0.636 (d) 0.7
  22. 22.What is the value of the digit 7 in 57.961? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  23. 23.What is the value of the digit 1 in 89.512? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  24. 24.2.07 + 6.8 = ? (a) 8.87 (b) 8.77 (c) 8.97 (d) 2.75
  25. 25.6.82 + 2.2 = ? (a) 8.92 (b) 9.02 (c) 7.04 (d) 9.12
  26. 26.Which is the greatest: 0.23, 0.2, 0.095, 0.125? (a) 0.23 (b) 0.2 (c) 0.095 (d) 0.125
  27. 27.7.71 + 3.1 = ? (a) 10.81 (b) 8.02 (c) 10.71 (d) 10.91
  28. 28.What is the value of the digit 2 in 82.195? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  29. 29.1.97 + 7.1 = ? (a) 8.97 (b) 2.68 (c) 9.17 (d) 9.07
  30. 30.What is the value of the digit 1 in 71.254? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  31. 31.What is the value of the digit 9 in 19.286? (a) 0.9 (b) 0.09 (c) 90 (d) 9
  32. 32.Which is the greatest: 0.095, 0.8, 0.82, 0.776? (a) 0.095 (b) 0.8 (c) 0.82 (d) 0.776
  33. 33.Which is the smallest: 0.551, 0.082, 0.6, 0.67? (a) 0.551 (b) 0.082 (c) 0.6 (d) 0.67
  34. 34.9.85 + 5.5 = ? (a) 15.35 (b) 15.45 (c) 15.25 (d) 10.4
  35. 35.What is the value of the digit 6 in 67.254? (a) 0.06 (b) 6 (c) 60 (d) 0.6
  36. 36.8.48 + 6.3 = ? (a) 14.88 (b) 14.68 (c) 14.78 (d) 9.11
  37. 37.6.54 + 6.3 = ? (a) 12.94 (b) 12.74 (c) 7.17 (d) 12.84
  38. 38.3.52 + 4.1 = ? (a) 3.93 (b) 7.72 (c) 7.62 (d) 7.52
  39. 39.Which is the greatest: 0.82, 0.8, 0.038, 0.719? (a) 0.82 (b) 0.8 (c) 0.038 (d) 0.719
  40. 40.1.81 + 3.1 = ? (a) 2.12 (b) 5.01 (c) 4.91 (d) 4.81

Answer key

  1. 0.086
  2. 4
  3. 0.27
  4. 0.063
  5. 10.03
  6. 0.06
  7. 12.11
  8. 6.11
  9. 60
  10. 14.35
  11. 8.75
  12. 12.01
  13. 30
  14. 10
  15. 0.89
  16. 0.005
  17. 4.37
  18. 14.83
  19. 0.01
  20. 0.027
  21. 0.71
  22. 7
  23. 0.01
  24. 8.87
  25. 9.02
  26. 0.23
  27. 10.81
  28. 2
  29. 9.07
  30. 1
  31. 9
  32. 0.82
  33. 0.082
  34. 15.35
  35. 60
  36. 14.78
  37. 12.84
  38. 7.62
  39. 0.82
  40. 4.91

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