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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 955 · 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 greatest: 0.5, 0.59, 0.419, 0.022? (a) 0.5 (b) 0.59 (c) 0.419 (d) 0.022
  2. 2.Which is the greatest: 0.099, 0.84, 0.8, 0.715? (a) 0.099 (b) 0.84 (c) 0.8 (d) 0.715
  3. 3.1.58 + 7.5 = ? (a) 8.98 (b) 9.18 (c) 9.08 (d) 2.33
  4. 4.What is the value of the digit 2 in 68.412? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  5. 5.3.91 + 2.6 = ? (a) 6.61 (b) 6.51 (c) 4.17 (d) 6.41
  6. 6.What is the value of the digit 6 in 63.728? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  7. 7.1.71 + 2.6 = ? (a) 4.31 (b) 4.21 (c) 1.97 (d) 4.41
  8. 8.Which is the smallest: 0.57, 0.034, 0.463, 0.5? (a) 0.57 (b) 0.034 (c) 0.463 (d) 0.5
  9. 9.1.92 + 7.9 = ? (a) 9.92 (b) 9.72 (c) 9.82 (d) 2.71
  10. 10.What is the value of the digit 1 in 69.812? (a) 1 (b) 0.01 (c) 0.1 (d) 0.001
  11. 11.1.23 + 4.1 = ? (a) 5.23 (b) 5.33 (c) 5.43 (d) 1.64
  12. 12.9.38 + 9.2 = ? (a) 18.48 (b) 18.58 (c) 10.3 (d) 18.68
  13. 13.What is the value of the digit 9 in 81.596? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  14. 14.What is the value of the digit 5 in 52.819? (a) 0.05 (b) 0.5 (c) 50 (d) 5
  15. 15.Which is the smallest: 0.83, 0.019, 0.721, 0.8? (a) 0.83 (b) 0.019 (c) 0.721 (d) 0.8
  16. 16.Which is the greatest: 0.3, 0.256, 0.33, 0.012? (a) 0.3 (b) 0.256 (c) 0.33 (d) 0.012
  17. 17.What is the value of the digit 5 in 59.867? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  18. 18.What is the value of the digit 7 in 53.478? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  19. 19.Which is the greatest: 0.41, 0.4, 0.081, 0.328? (a) 0.41 (b) 0.4 (c) 0.081 (d) 0.328
  20. 20.Which is the greatest: 0.77, 0.032, 0.625, 0.7? (a) 0.77 (b) 0.032 (c) 0.625 (d) 0.7
  21. 21.1.72 + 1.3 = ? (a) 3.02 (b) 1.85 (c) 2.92 (d) 3.12
  22. 22.What is the value of the digit 1 in 45.192? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  23. 23.6.11 + 7.6 = ? (a) 13.61 (b) 13.81 (c) 13.71 (d) 6.87
  24. 24.2.27 + 6.5 = ? (a) 8.67 (b) 8.87 (c) 8.77 (d) 2.92
  25. 25.5.66 + 9.4 = ? (a) 6.6 (b) 15.16 (c) 15.06 (d) 14.96
  26. 26.Which is the smallest: 0.722, 0.8, 0.87, 0.042? (a) 0.722 (b) 0.8 (c) 0.87 (d) 0.042
  27. 27.5.81 + 5.2 = ? (a) 10.91 (b) 6.33 (c) 11.11 (d) 11.01
  28. 28.Which is the smallest: 0.4, 0.092, 0.42, 0.322? (a) 0.4 (b) 0.092 (c) 0.42 (d) 0.322
  29. 29.Which is the greatest: 0.065, 0.64, 0.6, 0.589? (a) 0.065 (b) 0.64 (c) 0.6 (d) 0.589
  30. 30.3.49 + 3.4 = ? (a) 6.99 (b) 6.79 (c) 3.83 (d) 6.89
  31. 31.7.12 + 1.9 = ? (a) 9.02 (b) 7.31 (c) 8.92 (d) 9.12
  32. 32.1.75 + 4.8 = ? (a) 6.65 (b) 2.23 (c) 6.45 (d) 6.55
  33. 33.6.83 + 3.1 = ? (a) 9.83 (b) 10.03 (c) 7.14 (d) 9.93
  34. 34.What is the value of the digit 6 in 68.913? (a) 0.6 (b) 60 (c) 6 (d) 0.06
  35. 35.What is the value of the digit 9 in 89.625? (a) 90 (b) 0.09 (c) 0.9 (d) 9
  36. 36.Which is the greatest: 0.046, 0.62, 0.585, 0.6? (a) 0.046 (b) 0.62 (c) 0.585 (d) 0.6
  37. 37.Which is the greatest: 0.57, 0.412, 0.047, 0.5? (a) 0.57 (b) 0.412 (c) 0.047 (d) 0.5
  38. 38.What is the value of the digit 1 in 57.413? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  39. 39.Which is the smallest: 0.31, 0.289, 0.3, 0.021? (a) 0.31 (b) 0.289 (c) 0.3 (d) 0.021
  40. 40.What is the value of the digit 2 in 24.836? (a) 0.02 (b) 20 (c) 2 (d) 0.2

Answer key

  1. 0.59
  2. 0.84
  3. 9.08
  4. 0.002
  5. 6.51
  6. 60
  7. 4.31
  8. 0.034
  9. 9.82
  10. 0.01
  11. 5.33
  12. 18.58
  13. 0.09
  14. 50
  15. 0.019
  16. 0.33
  17. 50
  18. 0.07
  19. 0.41
  20. 0.77
  21. 3.02
  22. 0.1
  23. 13.71
  24. 8.77
  25. 15.06
  26. 0.042
  27. 11.01
  28. 0.092
  29. 0.64
  30. 6.89
  31. 9.02
  32. 6.55
  33. 9.93
  34. 60
  35. 9
  36. 0.62
  37. 0.57
  38. 0.01
  39. 0.021
  40. 20

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