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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 944 · 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: 0.31, 0.268, 0.016, 0.3? (a) 0.31 (b) 0.268 (c) 0.016 (d) 0.3
  2. 2.Which is the smallest: 0.125, 0.25, 0.023, 0.2? (a) 0.125 (b) 0.25 (c) 0.023 (d) 0.2
  3. 3.Which is the smallest: 0.045, 0.8, 0.81, 0.737? (a) 0.045 (b) 0.8 (c) 0.81 (d) 0.737
  4. 4.8.81 + 4.8 = ? (a) 9.29 (b) 13.61 (c) 13.71 (d) 13.51
  5. 5.What is the value of the digit 1 in 42.136? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  6. 6.Which is the smallest: 0.6, 0.69, 0.051, 0.583? (a) 0.6 (b) 0.69 (c) 0.051 (d) 0.583
  7. 7.What is the value of the digit 1 in 24.193? (a) 0.01 (b) 0.001 (c) 1 (d) 0.1
  8. 8.7.72 + 4.6 = ? (a) 12.22 (b) 12.42 (c) 8.18 (d) 12.32
  9. 9.What is the value of the digit 7 in 23.874? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  10. 10.Which is the greatest: 0.021, 0.7, 0.72, 0.637? (a) 0.021 (b) 0.7 (c) 0.72 (d) 0.637
  11. 11.Which is the smallest: 0.55, 0.5, 0.443, 0.063? (a) 0.55 (b) 0.5 (c) 0.443 (d) 0.063
  12. 12.What is the value of the digit 8 in 74.568? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8
  13. 13.2.13 + 4.9 = ? (a) 7.03 (b) 2.62 (c) 6.93 (d) 7.13
  14. 14.Which is the greatest: 0.227, 0.3, 0.38, 0.026? (a) 0.227 (b) 0.3 (c) 0.38 (d) 0.026
  15. 15.What is the value of the digit 3 in 38.921? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  16. 16.Which is the greatest: 0.043, 0.172, 0.26, 0.2? (a) 0.043 (b) 0.172 (c) 0.26 (d) 0.2
  17. 17.7.51 + 2.1 = ? (a) 9.71 (b) 9.61 (c) 7.72 (d) 9.51
  18. 18.What is the value of the digit 8 in 68.345? (a) 8 (b) 0.08 (c) 0.8 (d) 80
  19. 19.8.16 + 8.7 = ? (a) 9.03 (b) 16.76 (c) 16.86 (d) 16.96
  20. 20.4.51 + 2.1 = ? (a) 6.61 (b) 6.71 (c) 4.72 (d) 6.51
  21. 21.What is the value of the digit 9 in 69.125? (a) 0.09 (b) 0.9 (c) 9 (d) 90
  22. 22.Which is the greatest: 0.54, 0.5, 0.089, 0.494? (a) 0.54 (b) 0.5 (c) 0.089 (d) 0.494
  23. 23.Which is the greatest: 0.3, 0.39, 0.091, 0.279? (a) 0.3 (b) 0.39 (c) 0.091 (d) 0.279
  24. 24.Which is the smallest: 0.025, 0.66, 0.6, 0.596? (a) 0.025 (b) 0.66 (c) 0.6 (d) 0.596
  25. 25.Which is the greatest: 0.2, 0.115, 0.052, 0.23? (a) 0.2 (b) 0.115 (c) 0.052 (d) 0.23
  26. 26.7.36 + 8.1 = ? (a) 8.17 (b) 15.46 (c) 15.36 (d) 15.56
  27. 27.3.94 + 5.7 = ? (a) 4.51 (b) 9.74 (c) 9.64 (d) 9.54
  28. 28.Which is the greatest: 0.538, 0.055, 0.6, 0.68? (a) 0.538 (b) 0.055 (c) 0.6 (d) 0.68
  29. 29.7.49 + 2.8 = ? (a) 10.39 (b) 10.19 (c) 10.29 (d) 7.77
  30. 30.6.86 + 3.7 = ? (a) 7.23 (b) 10.46 (c) 10.56 (d) 10.66
  31. 31.3.26 + 1.9 = ? (a) 5.16 (b) 3.45 (c) 5.26 (d) 5.06
  32. 32.What is the value of the digit 3 in 53.718? (a) 0.03 (b) 30 (c) 0.3 (d) 3
  33. 33.Which is the greatest: 0.096, 0.21, 0.2, 0.183? (a) 0.096 (b) 0.21 (c) 0.2 (d) 0.183
  34. 34.Which is the greatest: 0.067, 0.32, 0.3, 0.228? (a) 0.067 (b) 0.32 (c) 0.3 (d) 0.228
  35. 35.1.17 + 5.8 = ? (a) 1.75 (b) 7.07 (c) 6.97 (d) 6.87
  36. 36.4.77 + 5.4 = ? (a) 10.07 (b) 10.17 (c) 10.27 (d) 5.31
  37. 37.What is the value of the digit 6 in 76.543? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  38. 38.What is the value of the digit 2 in 27.963? (a) 0.2 (b) 2 (c) 0.02 (d) 20
  39. 39.Which is the smallest: 0.69, 0.564, 0.068, 0.6? (a) 0.69 (b) 0.564 (c) 0.068 (d) 0.6
  40. 40.3.23 + 8.2 = ? (a) 11.33 (b) 4.05 (c) 11.53 (d) 11.43

Answer key

  1. 0.31
  2. 0.023
  3. 0.045
  4. 13.61
  5. 0.1
  6. 0.051
  7. 0.1
  8. 12.32
  9. 0.07
  10. 0.72
  11. 0.063
  12. 0.008
  13. 7.03
  14. 0.38
  15. 30
  16. 0.26
  17. 9.61
  18. 8
  19. 16.86
  20. 6.61
  21. 9
  22. 0.54
  23. 0.39
  24. 0.025
  25. 0.23
  26. 15.46
  27. 9.64
  28. 0.68
  29. 10.29
  30. 10.56
  31. 5.16
  32. 3
  33. 0.21
  34. 0.32
  35. 6.97
  36. 10.17
  37. 6
  38. 20
  39. 0.068
  40. 11.43

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