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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 993 · 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 3 in 25.731? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  2. 2.1.53 + 4.6 = ? (a) 6.13 (b) 6.03 (c) 1.99 (d) 6.23
  3. 3.Which is the greatest: 0.092, 0.32, 0.3, 0.294? (a) 0.092 (b) 0.32 (c) 0.3 (d) 0.294
  4. 4.What is the value of the digit 1 in 19.642? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  5. 5.Which is the greatest: 0.116, 0.018, 0.2, 0.21? (a) 0.116 (b) 0.018 (c) 0.2 (d) 0.21
  6. 6.Which is the greatest: 0.33, 0.3, 0.021, 0.234? (a) 0.33 (b) 0.3 (c) 0.021 (d) 0.234
  7. 7.What is the value of the digit 9 in 39.825? (a) 0.09 (b) 90 (c) 0.9 (d) 9
  8. 8.What is the value of the digit 1 in 61.724? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  9. 9.6.07 + 1.6 = ? (a) 7.77 (b) 7.67 (c) 6.23 (d) 7.57
  10. 10.9.83 + 8.5 = ? (a) 10.68 (b) 18.33 (c) 18.23 (d) 18.43
  11. 11.What is the value of the digit 3 in 81.356? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  12. 12.2.21 + 3.6 = ? (a) 2.57 (b) 5.71 (c) 5.91 (d) 5.81
  13. 13.Which is the greatest: 0.43, 0.052, 0.4, 0.344? (a) 0.43 (b) 0.052 (c) 0.4 (d) 0.344
  14. 14.What is the value of the digit 3 in 85.439? (a) 0.03 (b) 0.3 (c) 3 (d) 0.003
  15. 15.4.48 + 4.1 = ? (a) 4.89 (b) 8.68 (c) 8.58 (d) 8.48
  16. 16.7.72 + 2.2 = ? (a) 9.82 (b) 10.02 (c) 9.92 (d) 7.94
  17. 17.Which is the greatest: 0.085, 0.8, 0.86, 0.782? (a) 0.085 (b) 0.8 (c) 0.86 (d) 0.782
  18. 18.What is the value of the digit 3 in 41.863? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  19. 19.9.09 + 8.4 = ? (a) 17.49 (b) 9.93 (c) 17.59 (d) 17.39
  20. 20.Which is the smallest: 0.387, 0.42, 0.4, 0.099? (a) 0.387 (b) 0.42 (c) 0.4 (d) 0.099
  21. 21.3.25 + 6.5 = ? (a) 9.85 (b) 9.75 (c) 9.65 (d) 3.9
  22. 22.6.05 + 9.5 = ? (a) 15.55 (b) 7 (c) 15.65 (d) 15.45
  23. 23.Which is the smallest: 0.74, 0.055, 0.7, 0.642? (a) 0.74 (b) 0.055 (c) 0.7 (d) 0.642
  24. 24.What is the value of the digit 4 in 32.914? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  25. 25.What is the value of the digit 4 in 18.432? (a) 4 (b) 0.04 (c) 0.004 (d) 0.4
  26. 26.Which is the greatest: 0.4, 0.023, 0.45, 0.353? (a) 0.4 (b) 0.023 (c) 0.45 (d) 0.353
  27. 27.What is the value of the digit 4 in 49.132? (a) 0.4 (b) 0.04 (c) 4 (d) 40
  28. 28.Which is the smallest: 0.264, 0.31, 0.043, 0.3? (a) 0.264 (b) 0.31 (c) 0.043 (d) 0.3
  29. 29.7.02 + 7.5 = ? (a) 7.77 (b) 14.42 (c) 14.62 (d) 14.52
  30. 30.What is the value of the digit 8 in 58.961? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  31. 31.What is the value of the digit 9 in 78.429? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  32. 32.Which is the greatest: 0.011, 0.476, 0.52, 0.5? (a) 0.011 (b) 0.476 (c) 0.52 (d) 0.5
  33. 33.Which is the greatest: 0.661, 0.7, 0.078, 0.76? (a) 0.661 (b) 0.7 (c) 0.078 (d) 0.76
  34. 34.Which is the greatest: 0.57, 0.048, 0.5, 0.435? (a) 0.57 (b) 0.048 (c) 0.5 (d) 0.435
  35. 35.9.17 + 3.5 = ? (a) 12.67 (b) 12.57 (c) 9.52 (d) 12.77
  36. 36.Which is the greatest: 0.672, 0.7, 0.064, 0.78? (a) 0.672 (b) 0.7 (c) 0.064 (d) 0.78
  37. 37.3.75 + 6.8 = ? (a) 10.65 (b) 4.43 (c) 10.55 (d) 10.45
  38. 38.What is the value of the digit 7 in 89.276? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  39. 39.Which is the greatest: 0.4, 0.44, 0.361, 0.096? (a) 0.4 (b) 0.44 (c) 0.361 (d) 0.096
  40. 40.4.52 + 3.3 = ? (a) 7.92 (b) 4.85 (c) 7.82 (d) 7.72

Answer key

  1. 0.03
  2. 6.13
  3. 0.32
  4. 10
  5. 0.21
  6. 0.33
  7. 9
  8. 1
  9. 7.67
  10. 18.33
  11. 0.3
  12. 5.81
  13. 0.43
  14. 0.03
  15. 8.58
  16. 9.92
  17. 0.86
  18. 0.003
  19. 17.49
  20. 0.099
  21. 9.75
  22. 15.55
  23. 0.055
  24. 0.004
  25. 0.4
  26. 0.45
  27. 40
  28. 0.043
  29. 14.52
  30. 8
  31. 0.009
  32. 0.52
  33. 0.76
  34. 0.57
  35. 12.67
  36. 0.78
  37. 10.55
  38. 0.07
  39. 0.44
  40. 7.82

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