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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 105 · 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: 0.3, 0.214, 0.35, 0.063? (a) 0.3 (b) 0.214 (c) 0.35 (d) 0.063
  2. 2.4.72 + 6.2 = ? (a) 10.92 (b) 10.82 (c) 5.34 (d) 11.02
  3. 3.Which is the smallest: 0.145, 0.2, 0.022, 0.22? (a) 0.145 (b) 0.2 (c) 0.022 (d) 0.22
  4. 4.8.85 + 4.1 = ? (a) 9.26 (b) 12.95 (c) 13.05 (d) 12.85
  5. 5.What is the value of the digit 6 in 63.812? (a) 6 (b) 0.6 (c) 60 (d) 0.06
  6. 6.2.17 + 6.9 = ? (a) 8.97 (b) 9.17 (c) 9.07 (d) 2.86
  7. 7.Which is the greatest: 0.69, 0.075, 0.513, 0.6? (a) 0.69 (b) 0.075 (c) 0.513 (d) 0.6
  8. 8.What is the value of the digit 6 in 41.652? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  9. 9.4.57 + 7.3 = ? (a) 5.3 (b) 11.87 (c) 11.97 (d) 11.77
  10. 10.4.88 + 6.7 = ? (a) 11.68 (b) 11.48 (c) 11.58 (d) 5.55
  11. 11.Which is the smallest: 0.056, 0.263, 0.3, 0.34? (a) 0.056 (b) 0.263 (c) 0.3 (d) 0.34
  12. 12.What is the value of the digit 9 in 97.846? (a) 0.9 (b) 0.09 (c) 9 (d) 90
  13. 13.Which is the greatest: 0.413, 0.037, 0.5, 0.52? (a) 0.413 (b) 0.037 (c) 0.5 (d) 0.52
  14. 14.What is the value of the digit 1 in 76.291? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  15. 15.What is the value of the digit 6 in 76.512? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  16. 16.Which is the greatest: 0.711, 0.81, 0.058, 0.8? (a) 0.711 (b) 0.81 (c) 0.058 (d) 0.8
  17. 17.What is the value of the digit 9 in 84.915? (a) 0.009 (b) 9 (c) 0.09 (d) 0.9
  18. 18.Which is the greatest: 0.567, 0.63, 0.6, 0.055? (a) 0.567 (b) 0.63 (c) 0.6 (d) 0.055
  19. 19.What is the value of the digit 4 in 19.245? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  20. 20.What is the value of the digit 5 in 95.438? (a) 0.05 (b) 5 (c) 0.5 (d) 50
  21. 21.What is the value of the digit 4 in 81.246? (a) 0.004 (b) 0.4 (c) 0.04 (d) 4
  22. 22.3.52 + 4.4 = ? (a) 7.82 (b) 8.02 (c) 7.92 (d) 3.96
  23. 23.7.26 + 1.7 = ? (a) 8.86 (b) 7.43 (c) 8.96 (d) 9.06
  24. 24.What is the value of the digit 3 in 24.813? (a) 3 (b) 0.003 (c) 0.03 (d) 0.3
  25. 25.9.84 + 2.9 = ? (a) 10.13 (b) 12.84 (c) 12.74 (d) 12.64
  26. 26.What is the value of the digit 6 in 73.496? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  27. 27.Which is the greatest: 0.028, 0.152, 0.2, 0.23? (a) 0.028 (b) 0.152 (c) 0.2 (d) 0.23
  28. 28.Which is the smallest: 0.761, 0.045, 0.81, 0.8? (a) 0.761 (b) 0.045 (c) 0.81 (d) 0.8
  29. 29.1.13 + 6.4 = ? (a) 7.43 (b) 7.53 (c) 1.77 (d) 7.63
  30. 30.What is the value of the digit 8 in 86.432? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  31. 31.Which is the smallest: 0.2, 0.28, 0.015, 0.177? (a) 0.2 (b) 0.28 (c) 0.015 (d) 0.177
  32. 32.What is the value of the digit 3 in 28.534? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  33. 33.What is the value of the digit 9 in 93.681? (a) 90 (b) 0.09 (c) 0.9 (d) 9
  34. 34.What is the value of the digit 4 in 42.935? (a) 0.4 (b) 0.04 (c) 40 (d) 4
  35. 35.Which is the greatest: 0.093, 0.57, 0.5, 0.428? (a) 0.093 (b) 0.57 (c) 0.5 (d) 0.428
  36. 36.6.24 + 7.1 = ? (a) 13.44 (b) 6.95 (c) 13.24 (d) 13.34
  37. 37.5.05 + 9.9 = ? (a) 14.85 (b) 6.04 (c) 15.05 (d) 14.95
  38. 38.What is the value of the digit 2 in 32.754? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  39. 39.Which is the greatest: 0.6, 0.592, 0.026, 0.66? (a) 0.6 (b) 0.592 (c) 0.026 (d) 0.66
  40. 40.1.45 + 1.8 = ? (a) 3.35 (b) 3.15 (c) 1.63 (d) 3.25

Answer key

  1. 0.35
  2. 10.92
  3. 0.022
  4. 12.95
  5. 60
  6. 9.07
  7. 0.69
  8. 0.6
  9. 11.87
  10. 11.58
  11. 0.056
  12. 90
  13. 0.52
  14. 0.001
  15. 6
  16. 0.81
  17. 0.9
  18. 0.63
  19. 0.04
  20. 5
  21. 0.04
  22. 7.92
  23. 8.96
  24. 0.003
  25. 12.74
  26. 0.006
  27. 0.23
  28. 0.045
  29. 7.53
  30. 80
  31. 0.015
  32. 0.03
  33. 90
  34. 40
  35. 0.57
  36. 13.34
  37. 14.95
  38. 2
  39. 0.66
  40. 3.25

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