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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 460 · 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 smallest: 0.091, 0.621, 0.77, 0.7? (a) 0.091 (b) 0.621 (c) 0.77 (d) 0.7
  2. 2.Which is the smallest: 0.83, 0.065, 0.8, 0.771? (a) 0.83 (b) 0.065 (c) 0.8 (d) 0.771
  3. 3.Which is the greatest: 0.34, 0.3, 0.233, 0.086? (a) 0.34 (b) 0.3 (c) 0.233 (d) 0.086
  4. 4.Which is the smallest: 0.6, 0.038, 0.62, 0.574? (a) 0.6 (b) 0.038 (c) 0.62 (d) 0.574
  5. 5.6.92 + 1.7 = ? (a) 7.09 (b) 8.52 (c) 8.72 (d) 8.62
  6. 6.What is the value of the digit 9 in 43.897? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  7. 7.What is the value of the digit 9 in 95.813? (a) 9 (b) 0.9 (c) 90 (d) 0.09
  8. 8.Which is the smallest: 0.73, 0.644, 0.7, 0.033? (a) 0.73 (b) 0.644 (c) 0.7 (d) 0.033
  9. 9.What is the value of the digit 7 in 71.485? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  10. 10.What is the value of the digit 1 in 51.326? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  11. 11.What is the value of the digit 2 in 71.523? (a) 0.002 (b) 0.02 (c) 0.2 (d) 2
  12. 12.Which is the greatest: 0.056, 0.4, 0.49, 0.394? (a) 0.056 (b) 0.4 (c) 0.49 (d) 0.394
  13. 13.Which is the greatest: 0.097, 0.25, 0.121, 0.2? (a) 0.097 (b) 0.25 (c) 0.121 (d) 0.2
  14. 14.1.93 + 6.3 = ? (a) 8.13 (b) 8.23 (c) 8.33 (d) 2.56
  15. 15.2.81 + 1.9 = ? (a) 4.71 (b) 4.81 (c) 4.61 (d) 3
  16. 16.Which is the smallest: 0.3, 0.214, 0.028, 0.39? (a) 0.3 (b) 0.214 (c) 0.028 (d) 0.39
  17. 17.What is the value of the digit 1 in 24.381? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  18. 18.6.88 + 6.9 = ? (a) 7.57 (b) 13.78 (c) 13.88 (d) 13.68
  19. 19.5.22 + 9.9 = ? (a) 15.22 (b) 6.21 (c) 15.12 (d) 15.02
  20. 20.Which is the smallest: 0.554, 0.6, 0.63, 0.084? (a) 0.554 (b) 0.6 (c) 0.63 (d) 0.084
  21. 21.Which is the smallest: 0.083, 0.32, 0.3, 0.216? (a) 0.083 (b) 0.32 (c) 0.3 (d) 0.216
  22. 22.9.41 + 1.4 = ? (a) 10.71 (b) 9.55 (c) 10.81 (d) 10.91
  23. 23.2.86 + 1.4 = ? (a) 4.16 (b) 4.26 (c) 3 (d) 4.36
  24. 24.Which is the smallest: 0.8, 0.82, 0.039, 0.759? (a) 0.8 (b) 0.82 (c) 0.039 (d) 0.759
  25. 25.Which is the greatest: 0.7, 0.644, 0.72, 0.028? (a) 0.7 (b) 0.644 (c) 0.72 (d) 0.028
  26. 26.What is the value of the digit 3 in 93.267? (a) 0.3 (b) 30 (c) 3 (d) 0.03
  27. 27.What is the value of the digit 8 in 92.681? (a) 0.08 (b) 0.8 (c) 8 (d) 0.008
  28. 28.What is the value of the digit 4 in 21.496? (a) 4 (b) 0.04 (c) 0.004 (d) 0.4
  29. 29.What is the value of the digit 9 in 93.652? (a) 9 (b) 0.9 (c) 0.09 (d) 90
  30. 30.Which is the smallest: 0.313, 0.083, 0.4, 0.46? (a) 0.313 (b) 0.083 (c) 0.4 (d) 0.46
  31. 31.Which is the smallest: 0.322, 0.073, 0.4, 0.44? (a) 0.322 (b) 0.073 (c) 0.4 (d) 0.44
  32. 32.9.21 + 4.3 = ? (a) 13.61 (b) 13.41 (c) 9.64 (d) 13.51
  33. 33.Which is the smallest: 0.76, 0.071, 0.653, 0.7? (a) 0.76 (b) 0.071 (c) 0.653 (d) 0.7
  34. 34.What is the value of the digit 3 in 93.178? (a) 30 (b) 0.3 (c) 0.03 (d) 3
  35. 35.7.84 + 1.3 = ? (a) 9.04 (b) 9.14 (c) 9.24 (d) 7.97
  36. 36.What is the value of the digit 1 in 71.324? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  37. 37.Which is the smallest: 0.25, 0.025, 0.184, 0.2? (a) 0.25 (b) 0.025 (c) 0.184 (d) 0.2
  38. 38.What is the value of the digit 1 in 97.614? (a) 0.01 (b) 1 (c) 0.1 (d) 0.001
  39. 39.Which is the smallest: 0.65, 0.566, 0.6, 0.061? (a) 0.65 (b) 0.566 (c) 0.6 (d) 0.061
  40. 40.What is the value of the digit 6 in 41.826? (a) 0.6 (b) 0.06 (c) 6 (d) 0.006

Answer key

  1. 0.091
  2. 0.065
  3. 0.34
  4. 0.038
  5. 8.62
  6. 0.09
  7. 90
  8. 0.033
  9. 70
  10. 1
  11. 0.02
  12. 0.49
  13. 0.25
  14. 8.23
  15. 4.71
  16. 0.028
  17. 0.001
  18. 13.78
  19. 15.12
  20. 0.084
  21. 0.083
  22. 10.81
  23. 4.26
  24. 0.039
  25. 0.72
  26. 3
  27. 0.08
  28. 0.4
  29. 90
  30. 0.083
  31. 0.073
  32. 13.51
  33. 0.071
  34. 3
  35. 9.14
  36. 1
  37. 0.025
  38. 0.01
  39. 0.061
  40. 0.006

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