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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 481 · 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 14.925? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  2. 2.8.45 + 1.4 = ? (a) 9.95 (b) 9.75 (c) 8.59 (d) 9.85
  3. 3.What is the value of the digit 3 in 26.873? (a) 0.3 (b) 0.003 (c) 3 (d) 0.03
  4. 4.Which is the greatest: 0.316, 0.4, 0.41, 0.061? (a) 0.316 (b) 0.4 (c) 0.41 (d) 0.061
  5. 5.7.59 + 9.1 = ? (a) 16.59 (b) 16.79 (c) 8.5 (d) 16.69
  6. 6.What is the value of the digit 8 in 58.314? (a) 8 (b) 0.08 (c) 80 (d) 0.8
  7. 7.6.34 + 6.8 = ? (a) 13.24 (b) 13.04 (c) 13.14 (d) 7.02
  8. 8.Which is the smallest: 0.021, 0.685, 0.7, 0.74? (a) 0.021 (b) 0.685 (c) 0.7 (d) 0.74
  9. 9.What is the value of the digit 7 in 57.421? (a) 0.07 (b) 0.7 (c) 70 (d) 7
  10. 10.What is the value of the digit 6 in 61.578? (a) 60 (b) 6 (c) 0.6 (d) 0.06
  11. 11.Which is the smallest: 0.054, 0.336, 0.4, 0.43? (a) 0.054 (b) 0.336 (c) 0.4 (d) 0.43
  12. 12.What is the value of the digit 1 in 81.562? (a) 10 (b) 0.1 (c) 1 (d) 0.01
  13. 13.Which is the smallest: 0.055, 0.389, 0.4, 0.49? (a) 0.055 (b) 0.389 (c) 0.4 (d) 0.49
  14. 14.Which is the greatest: 0.026, 0.6, 0.532, 0.69? (a) 0.026 (b) 0.6 (c) 0.532 (d) 0.69
  15. 15.Which is the greatest: 0.2, 0.22, 0.194, 0.042? (a) 0.2 (b) 0.22 (c) 0.194 (d) 0.042
  16. 16.What is the value of the digit 5 in 54.869? (a) 0.5 (b) 0.05 (c) 5 (d) 50
  17. 17.Which is the greatest: 0.677, 0.74, 0.027, 0.7? (a) 0.677 (b) 0.74 (c) 0.027 (d) 0.7
  18. 18.6.61 + 8.7 = ? (a) 7.48 (b) 15.41 (c) 15.31 (d) 15.21
  19. 19.Which is the greatest: 0.76, 0.041, 0.631, 0.7? (a) 0.76 (b) 0.041 (c) 0.631 (d) 0.7
  20. 20.Which is the greatest: 0.645, 0.71, 0.057, 0.7? (a) 0.645 (b) 0.71 (c) 0.057 (d) 0.7
  21. 21.What is the value of the digit 3 in 69.523? (a) 0.3 (b) 0.03 (c) 0.003 (d) 3
  22. 22.1.41 + 5.5 = ? (a) 7.01 (b) 6.81 (c) 1.96 (d) 6.91
  23. 23.What is the value of the digit 8 in 82.739? (a) 8 (b) 80 (c) 0.8 (d) 0.08
  24. 24.What is the value of the digit 1 in 42.163? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  25. 25.5.73 + 8.7 = ? (a) 14.33 (b) 6.6 (c) 14.53 (d) 14.43
  26. 26.What is the value of the digit 2 in 98.462? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  27. 27.2.35 + 1.2 = ? (a) 2.47 (b) 3.65 (c) 3.45 (d) 3.55
  28. 28.3.53 + 9.9 = ? (a) 13.43 (b) 13.33 (c) 13.53 (d) 4.52
  29. 29.What is the value of the digit 1 in 57.198? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  30. 30.Which is the smallest: 0.8, 0.755, 0.86, 0.091? (a) 0.8 (b) 0.755 (c) 0.86 (d) 0.091
  31. 31.2.15 + 8.6 = ? (a) 3.01 (b) 10.75 (c) 10.85 (d) 10.65
  32. 32.What is the value of the digit 2 in 35.862? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  33. 33.What is the value of the digit 4 in 75.482? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  34. 34.3.01 + 5.6 = ? (a) 8.51 (b) 3.57 (c) 8.71 (d) 8.61
  35. 35.7.35 + 3.3 = ? (a) 10.55 (b) 10.75 (c) 10.65 (d) 7.68
  36. 36.3.63 + 2.4 = ? (a) 3.87 (b) 5.93 (c) 6.13 (d) 6.03
  37. 37.What is the value of the digit 9 in 31.297? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  38. 38.Which is the smallest: 0.237, 0.34, 0.085, 0.3? (a) 0.237 (b) 0.34 (c) 0.085 (d) 0.3
  39. 39.6.93 + 6.1 = ? (a) 12.93 (b) 13.13 (c) 7.54 (d) 13.03
  40. 40.What is the value of the digit 1 in 43.719? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1

Answer key

  1. 10
  2. 9.85
  3. 0.003
  4. 0.41
  5. 16.69
  6. 8
  7. 13.14
  8. 0.021
  9. 7
  10. 60
  11. 0.054
  12. 1
  13. 0.055
  14. 0.69
  15. 0.22
  16. 50
  17. 0.74
  18. 15.31
  19. 0.76
  20. 0.71
  21. 0.003
  22. 6.91
  23. 80
  24. 0.1
  25. 14.43
  26. 0.002
  27. 3.55
  28. 13.43
  29. 0.1
  30. 0.091
  31. 10.75
  32. 0.002
  33. 0.4
  34. 8.61
  35. 10.65
  36. 6.03
  37. 0.09
  38. 0.085
  39. 13.03
  40. 0.01

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