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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 594 · 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: 0.235, 0.35, 0.078, 0.3? (a) 0.235 (b) 0.35 (c) 0.078 (d) 0.3
  2. 2.What is the value of the digit 4 in 47.965? (a) 4 (b) 40 (c) 0.4 (d) 0.04
  3. 3.Which is the greatest: 0.694, 0.062, 0.7, 0.72? (a) 0.694 (b) 0.062 (c) 0.7 (d) 0.72
  4. 4.Which is the greatest: 0.21, 0.2, 0.121, 0.099? (a) 0.21 (b) 0.2 (c) 0.121 (d) 0.099
  5. 5.4.91 + 7.1 = ? (a) 5.62 (b) 11.91 (c) 12.01 (d) 12.11
  6. 6.2.54 + 7.3 = ? (a) 3.27 (b) 9.94 (c) 9.84 (d) 9.74
  7. 7.6.84 + 3.1 = ? (a) 9.84 (b) 7.15 (c) 10.04 (d) 9.94
  8. 8.Which is the greatest: 0.685, 0.79, 0.7, 0.059? (a) 0.685 (b) 0.79 (c) 0.7 (d) 0.059
  9. 9.What is the value of the digit 6 in 84.956? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  10. 10.Which is the greatest: 0.83, 0.024, 0.8, 0.761? (a) 0.83 (b) 0.024 (c) 0.8 (d) 0.761
  11. 11.Which is the smallest: 0.076, 0.36, 0.3, 0.229? (a) 0.076 (b) 0.36 (c) 0.3 (d) 0.229
  12. 12.What is the value of the digit 4 in 91.574? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  13. 13.What is the value of the digit 9 in 43.597? (a) 0.09 (b) 9 (c) 0.009 (d) 0.9
  14. 14.2.11 + 3.4 = ? (a) 2.45 (b) 5.61 (c) 5.51 (d) 5.41
  15. 15.What is the value of the digit 6 in 79.836? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  16. 16.Which is the greatest: 0.73, 0.631, 0.7, 0.016? (a) 0.73 (b) 0.631 (c) 0.7 (d) 0.016
  17. 17.4.52 + 8.9 = ? (a) 13.52 (b) 5.41 (c) 13.32 (d) 13.42
  18. 18.5.91 + 3.6 = ? (a) 9.61 (b) 6.27 (c) 9.51 (d) 9.41
  19. 19.What is the value of the digit 5 in 52.371? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  20. 20.7.96 + 3.8 = ? (a) 8.34 (b) 11.86 (c) 11.66 (d) 11.76
  21. 21.Which is the greatest: 0.58, 0.497, 0.5, 0.069? (a) 0.58 (b) 0.497 (c) 0.5 (d) 0.069
  22. 22.What is the value of the digit 2 in 15.742? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02
  23. 23.What is the value of the digit 4 in 27.384? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  24. 24.6.87 + 7.2 = ? (a) 14.17 (b) 7.59 (c) 13.97 (d) 14.07
  25. 25.7.77 + 9.7 = ? (a) 8.74 (b) 17.47 (c) 17.37 (d) 17.57
  26. 26.7.96 + 2.5 = ? (a) 10.36 (b) 8.21 (c) 10.46 (d) 10.56
  27. 27.Which is the smallest: 0.228, 0.058, 0.32, 0.3? (a) 0.228 (b) 0.058 (c) 0.32 (d) 0.3
  28. 28.Which is the greatest: 0.273, 0.39, 0.048, 0.3? (a) 0.273 (b) 0.39 (c) 0.048 (d) 0.3
  29. 29.Which is the smallest: 0.43, 0.4, 0.391, 0.053? (a) 0.43 (b) 0.4 (c) 0.391 (d) 0.053
  30. 30.What is the value of the digit 9 in 82.195? (a) 0.009 (b) 9 (c) 0.09 (d) 0.9
  31. 31.What is the value of the digit 9 in 39.562? (a) 0.9 (b) 0.09 (c) 90 (d) 9
  32. 32.Which is the greatest: 0.332, 0.017, 0.45, 0.4? (a) 0.332 (b) 0.017 (c) 0.45 (d) 0.4
  33. 33.What is the value of the digit 5 in 16.598? (a) 0.05 (b) 0.5 (c) 0.005 (d) 5
  34. 34.7.11 + 2.3 = ? (a) 7.34 (b) 9.31 (c) 9.51 (d) 9.41
  35. 35.2.16 + 5.5 = ? (a) 7.66 (b) 7.76 (c) 2.71 (d) 7.56
  36. 36.1.17 + 2.3 = ? (a) 3.37 (b) 3.47 (c) 3.57 (d) 1.4
  37. 37.6.04 + 9.6 = ? (a) 15.54 (b) 15.64 (c) 7 (d) 15.74
  38. 38.3.22 + 6.2 = ? (a) 9.42 (b) 9.52 (c) 3.84 (d) 9.32
  39. 39.What is the value of the digit 7 in 47.261? (a) 7 (b) 0.7 (c) 0.07 (d) 70
  40. 40.6.68 + 3.1 = ? (a) 6.99 (b) 9.68 (c) 9.78 (d) 9.88

Answer key

  1. 0.35
  2. 40
  3. 0.72
  4. 0.21
  5. 12.01
  6. 9.84
  7. 9.94
  8. 0.79
  9. 0.006
  10. 0.83
  11. 0.076
  12. 0.004
  13. 0.09
  14. 5.51
  15. 0.006
  16. 0.73
  17. 13.42
  18. 9.51
  19. 50
  20. 11.76
  21. 0.58
  22. 0.002
  23. 0.004
  24. 14.07
  25. 17.47
  26. 10.46
  27. 0.058
  28. 0.39
  29. 0.053
  30. 0.09
  31. 9
  32. 0.45
  33. 0.5
  34. 9.41
  35. 7.66
  36. 3.47
  37. 15.64
  38. 9.42
  39. 7
  40. 9.78

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