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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 928 · 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. 1.4.18 + 3.2 = ? (a) 7.48 (b) 7.38 (c) 4.5 (d) 7.28
  2. 2.What is the value of the digit 6 in 26.941? (a) 0.6 (b) 6 (c) 0.06 (d) 60
  3. 3.What is the value of the digit 6 in 39.546? (a) 0.6 (b) 0.06 (c) 0.006 (d) 6
  4. 4.Which is the smallest: 0.465, 0.082, 0.5, 0.59? (a) 0.465 (b) 0.082 (c) 0.5 (d) 0.59
  5. 5.What is the value of the digit 9 in 96.124? (a) 9 (b) 0.09 (c) 90 (d) 0.9
  6. 6.3.09 + 9.3 = ? (a) 12.49 (b) 12.29 (c) 4.02 (d) 12.39
  7. 7.9.08 + 4.2 = ? (a) 13.28 (b) 13.38 (c) 13.18 (d) 9.5
  8. 8.What is the value of the digit 9 in 28.679? (a) 0.009 (b) 0.09 (c) 9 (d) 0.9
  9. 9.Which is the smallest: 0.216, 0.39, 0.046, 0.3? (a) 0.216 (b) 0.39 (c) 0.046 (d) 0.3
  10. 10.Which is the greatest: 0.36, 0.3, 0.226, 0.019? (a) 0.36 (b) 0.3 (c) 0.226 (d) 0.019
  11. 11.Which is the smallest: 0.062, 0.187, 0.2, 0.23? (a) 0.062 (b) 0.187 (c) 0.2 (d) 0.23
  12. 12.What is the value of the digit 2 in 78.412? (a) 0.2 (b) 2 (c) 0.02 (d) 0.002
  13. 13.1.29 + 5.6 = ? (a) 6.99 (b) 1.85 (c) 6.79 (d) 6.89
  14. 14.What is the value of the digit 2 in 47.926? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  15. 15.3.18 + 1.4 = ? (a) 3.32 (b) 4.68 (c) 4.58 (d) 4.48
  16. 16.2.17 + 2.2 = ? (a) 4.27 (b) 4.37 (c) 2.39 (d) 4.47
  17. 17.Which is the smallest: 0.3, 0.045, 0.33, 0.289? (a) 0.3 (b) 0.045 (c) 0.33 (d) 0.289
  18. 18.What is the value of the digit 2 in 12.469? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  19. 19.What is the value of the digit 1 in 54.172? (a) 0.1 (b) 1 (c) 0.01 (d) 0.001
  20. 20.1.28 + 6.1 = ? (a) 7.38 (b) 1.89 (c) 7.28 (d) 7.48
  21. 21.Which is the smallest: 0.054, 0.81, 0.8, 0.791? (a) 0.054 (b) 0.81 (c) 0.8 (d) 0.791
  22. 22.What is the value of the digit 6 in 65.431? (a) 0.6 (b) 6 (c) 60 (d) 0.06
  23. 23.What is the value of the digit 1 in 85.341? (a) 0.01 (b) 0.1 (c) 0.001 (d) 1
  24. 24.8.31 + 7.4 = ? (a) 15.81 (b) 15.71 (c) 15.61 (d) 9.05
  25. 25.5.35 + 1.4 = ? (a) 5.49 (b) 6.65 (c) 6.75 (d) 6.85
  26. 26.Which is the smallest: 0.3, 0.39, 0.062, 0.244? (a) 0.3 (b) 0.39 (c) 0.062 (d) 0.244
  27. 27.Which is the greatest: 0.5, 0.486, 0.048, 0.52? (a) 0.5 (b) 0.486 (c) 0.048 (d) 0.52
  28. 28.What is the value of the digit 2 in 17.852? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  29. 29.Which is the greatest: 0.717, 0.88, 0.045, 0.8? (a) 0.717 (b) 0.88 (c) 0.045 (d) 0.8
  30. 30.9.51 + 1.7 = ? (a) 11.31 (b) 9.68 (c) 11.11 (d) 11.21
  31. 31.What is the value of the digit 9 in 76.198? (a) 0.009 (b) 0.09 (c) 0.9 (d) 9
  32. 32.3.48 + 7.2 = ? (a) 10.68 (b) 4.2 (c) 10.58 (d) 10.78
  33. 33.What is the value of the digit 6 in 68.497? (a) 0.6 (b) 6 (c) 60 (d) 0.06
  34. 34.What is the value of the digit 9 in 91.854? (a) 90 (b) 0.9 (c) 9 (d) 0.09
  35. 35.What is the value of the digit 3 in 96.423? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  36. 36.5.78 + 3.1 = ? (a) 8.88 (b) 8.98 (c) 8.78 (d) 6.09
  37. 37.What is the value of the digit 8 in 37.821? (a) 8 (b) 0.8 (c) 0.08 (d) 0.008
  38. 38.Which is the smallest: 0.142, 0.28, 0.047, 0.2? (a) 0.142 (b) 0.28 (c) 0.047 (d) 0.2
  39. 39.5.24 + 4.4 = ? (a) 9.74 (b) 5.68 (c) 9.54 (d) 9.64
  40. 40.Which is the greatest: 0.2, 0.065, 0.185, 0.25? (a) 0.2 (b) 0.065 (c) 0.185 (d) 0.25

Answer key

  1. 7.38
  2. 6
  3. 0.006
  4. 0.082
  5. 90
  6. 12.39
  7. 13.28
  8. 0.009
  9. 0.046
  10. 0.36
  11. 0.062
  12. 0.002
  13. 6.89
  14. 0.02
  15. 4.58
  16. 4.37
  17. 0.045
  18. 2
  19. 0.1
  20. 7.38
  21. 0.054
  22. 60
  23. 0.001
  24. 15.71
  25. 6.75
  26. 0.062
  27. 0.52
  28. 0.002
  29. 0.88
  30. 11.21
  31. 0.09
  32. 10.68
  33. 60
  34. 90
  35. 0.003
  36. 8.88
  37. 0.8
  38. 0.047
  39. 9.64
  40. 0.25

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