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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 653 · 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 7 in 93.714? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  2. 2.What is the value of the digit 2 in 82.614? (a) 0.2 (b) 0.02 (c) 20 (d) 2
  3. 3.1.11 + 7.7 = ? (a) 8.91 (b) 8.71 (c) 1.88 (d) 8.81
  4. 4.8.02 + 3.2 = ? (a) 11.12 (b) 11.22 (c) 11.32 (d) 8.34
  5. 5.1.15 + 6.1 = ? (a) 7.15 (b) 7.25 (c) 1.76 (d) 7.35
  6. 6.What is the value of the digit 5 in 85.631? (a) 5 (b) 50 (c) 0.5 (d) 0.05
  7. 7.What is the value of the digit 8 in 65.823? (a) 0.8 (b) 8 (c) 0.008 (d) 0.08
  8. 8.What is the value of the digit 6 in 52.863? (a) 0.006 (b) 0.6 (c) 0.06 (d) 6
  9. 9.What is the value of the digit 3 in 34.825? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  10. 10.8.04 + 8.7 = ? (a) 16.74 (b) 16.64 (c) 8.91 (d) 16.84
  11. 11.Which is the greatest: 0.026, 0.331, 0.49, 0.4? (a) 0.026 (b) 0.331 (c) 0.49 (d) 0.4
  12. 12.Which is the greatest: 0.42, 0.328, 0.4, 0.021? (a) 0.42 (b) 0.328 (c) 0.4 (d) 0.021
  13. 13.Which is the greatest: 0.669, 0.7, 0.015, 0.77? (a) 0.669 (b) 0.7 (c) 0.015 (d) 0.77
  14. 14.7.36 + 6.9 = ? (a) 14.16 (b) 14.36 (c) 8.05 (d) 14.26
  15. 15.7.98 + 2.6 = ? (a) 10.48 (b) 8.24 (c) 10.68 (d) 10.58
  16. 16.What is the value of the digit 5 in 48.516? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  17. 17.1.71 + 6.3 = ? (a) 2.34 (b) 7.91 (c) 8.01 (d) 8.11
  18. 18.What is the value of the digit 7 in 18.762? (a) 0.07 (b) 0.007 (c) 7 (d) 0.7
  19. 19.What is the value of the digit 9 in 17.925? (a) 0.09 (b) 9 (c) 0.009 (d) 0.9
  20. 20.Which is the greatest: 0.62, 0.596, 0.6, 0.053? (a) 0.62 (b) 0.596 (c) 0.6 (d) 0.053
  21. 21.What is the value of the digit 3 in 14.392? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03
  22. 22.8.21 + 4.3 = ? (a) 12.51 (b) 12.61 (c) 12.41 (d) 8.64
  23. 23.Which is the greatest: 0.014, 0.87, 0.8, 0.712? (a) 0.014 (b) 0.87 (c) 0.8 (d) 0.712
  24. 24.Which is the smallest: 0.79, 0.685, 0.071, 0.7? (a) 0.79 (b) 0.685 (c) 0.071 (d) 0.7
  25. 25.6.99 + 7.2 = ? (a) 14.29 (b) 7.71 (c) 14.09 (d) 14.19
  26. 26.1.65 + 4.8 = ? (a) 6.55 (b) 6.45 (c) 6.35 (d) 2.13
  27. 27.What is the value of the digit 6 in 15.468? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  28. 28.5.39 + 7.9 = ? (a) 13.39 (b) 13.19 (c) 6.18 (d) 13.29
  29. 29.Which is the greatest: 0.115, 0.028, 0.22, 0.2? (a) 0.115 (b) 0.028 (c) 0.22 (d) 0.2
  30. 30.Which is the greatest: 0.22, 0.194, 0.2, 0.088? (a) 0.22 (b) 0.194 (c) 0.2 (d) 0.088
  31. 31.What is the value of the digit 1 in 59.721? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  32. 32.4.03 + 5.9 = ? (a) 9.93 (b) 9.83 (c) 10.03 (d) 4.62
  33. 33.What is the value of the digit 5 in 51.624? (a) 0.05 (b) 50 (c) 5 (d) 0.5
  34. 34.What is the value of the digit 1 in 94.183? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  35. 35.5.87 + 4.3 = ? (a) 6.3 (b) 10.07 (c) 10.17 (d) 10.27
  36. 36.Which is the greatest: 0.23, 0.2, 0.147, 0.027? (a) 0.23 (b) 0.2 (c) 0.147 (d) 0.027
  37. 37.3.62 + 4.1 = ? (a) 7.62 (b) 7.72 (c) 4.03 (d) 7.82
  38. 38.9.51 + 9.4 = ? (a) 18.91 (b) 19.01 (c) 18.81 (d) 10.45
  39. 39.7.05 + 4.1 = ? (a) 7.46 (b) 11.05 (c) 11.15 (d) 11.25
  40. 40.3.14 + 9.1 = ? (a) 12.14 (b) 12.34 (c) 4.05 (d) 12.24

Answer key

  1. 0.7
  2. 2
  3. 8.81
  4. 11.22
  5. 7.25
  6. 5
  7. 0.8
  8. 0.06
  9. 30
  10. 16.74
  11. 0.49
  12. 0.42
  13. 0.77
  14. 14.26
  15. 10.58
  16. 0.5
  17. 8.01
  18. 0.7
  19. 0.9
  20. 0.62
  21. 0.3
  22. 12.51
  23. 0.87
  24. 0.071
  25. 14.19
  26. 6.45
  27. 0.06
  28. 13.29
  29. 0.22
  30. 0.22
  31. 0.001
  32. 9.93
  33. 50
  34. 0.1
  35. 10.17
  36. 0.23
  37. 7.72
  38. 18.91
  39. 11.15
  40. 12.24

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