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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 439 · 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: 0.076, 0.222, 0.3, 0.37? (a) 0.076 (b) 0.222 (c) 0.3 (d) 0.37
  2. 2.What is the value of the digit 1 in 87.512? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  3. 3.1.28 + 3.3 = ? (a) 4.48 (b) 1.61 (c) 4.58 (d) 4.68
  4. 4.What is the value of the digit 1 in 21.745? (a) 0.01 (b) 10 (c) 1 (d) 0.1
  5. 5.Which is the greatest: 0.713, 0.8, 0.094, 0.86? (a) 0.713 (b) 0.8 (c) 0.094 (d) 0.86
  6. 6.3.32 + 5.9 = ? (a) 9.12 (b) 9.22 (c) 3.91 (d) 9.32
  7. 7.Which is the greatest: 0.651, 0.079, 0.74, 0.7? (a) 0.651 (b) 0.079 (c) 0.74 (d) 0.7
  8. 8.What is the value of the digit 6 in 96.258? (a) 6 (b) 60 (c) 0.06 (d) 0.6
  9. 9.What is the value of the digit 1 in 17.624? (a) 10 (b) 0.1 (c) 1 (d) 0.01
  10. 10.6.52 + 3.2 = ? (a) 9.82 (b) 6.84 (c) 9.62 (d) 9.72
  11. 11.3.21 + 1.8 = ? (a) 4.91 (b) 5.01 (c) 5.11 (d) 3.39
  12. 12.Which is the greatest: 0.71, 0.7, 0.638, 0.013? (a) 0.71 (b) 0.7 (c) 0.638 (d) 0.013
  13. 13.5.22 + 9.2 = ? (a) 6.14 (b) 14.52 (c) 14.32 (d) 14.42
  14. 14.What is the value of the digit 3 in 37.592? (a) 3 (b) 0.3 (c) 30 (d) 0.03
  15. 15.What is the value of the digit 4 in 71.634? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  16. 16.7.32 + 6.5 = ? (a) 13.92 (b) 13.72 (c) 7.97 (d) 13.82
  17. 17.Which is the smallest: 0.284, 0.3, 0.038, 0.39? (a) 0.284 (b) 0.3 (c) 0.038 (d) 0.39
  18. 18.What is the value of the digit 8 in 61.827? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  19. 19.What is the value of the digit 4 in 64.257? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  20. 20.3.39 + 3.1 = ? (a) 3.7 (b) 6.59 (c) 6.49 (d) 6.39
  21. 21.Which is the smallest: 0.152, 0.22, 0.054, 0.2? (a) 0.152 (b) 0.22 (c) 0.054 (d) 0.2
  22. 22.Which is the greatest: 0.547, 0.61, 0.049, 0.6? (a) 0.547 (b) 0.61 (c) 0.049 (d) 0.6
  23. 23.Which is the smallest: 0.81, 0.754, 0.093, 0.8? (a) 0.81 (b) 0.754 (c) 0.093 (d) 0.8
  24. 24.2.21 + 8.9 = ? (a) 3.1 (b) 11.01 (c) 11.11 (d) 11.21
  25. 25.4.87 + 4.7 = ? (a) 5.34 (b) 9.67 (c) 9.47 (d) 9.57
  26. 26.2.97 + 2.3 = ? (a) 3.2 (b) 5.37 (c) 5.17 (d) 5.27
  27. 27.What is the value of the digit 2 in 24.653? (a) 0.02 (b) 2 (c) 20 (d) 0.2
  28. 28.9.54 + 2.6 = ? (a) 12.14 (b) 12.04 (c) 9.8 (d) 12.24
  29. 29.What is the value of the digit 4 in 41.258? (a) 4 (b) 0.04 (c) 0.4 (d) 40
  30. 30.What is the value of the digit 1 in 27.831? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  31. 31.7.89 + 8.1 = ? (a) 8.7 (b) 16.09 (c) 15.99 (d) 15.89
  32. 32.Which is the smallest: 0.3, 0.055, 0.35, 0.212? (a) 0.3 (b) 0.055 (c) 0.35 (d) 0.212
  33. 33.3.16 + 9.2 = ? (a) 12.36 (b) 12.26 (c) 4.08 (d) 12.46
  34. 34.5.94 + 2.5 = ? (a) 8.34 (b) 8.44 (c) 8.54 (d) 6.19
  35. 35.8.74 + 6.9 = ? (a) 15.74 (b) 15.54 (c) 15.64 (d) 9.43
  36. 36.2.78 + 8.4 = ? (a) 11.28 (b) 11.08 (c) 11.18 (d) 3.62
  37. 37.What is the value of the digit 4 in 81.742? (a) 0.004 (b) 0.4 (c) 4 (d) 0.04
  38. 38.What is the value of the digit 6 in 69.758? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  39. 39.What is the value of the digit 9 in 51.269? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  40. 40.What is the value of the digit 3 in 91.235? (a) 0.03 (b) 0.3 (c) 3 (d) 0.003

Answer key

  1. 0.076
  2. 0.01
  3. 4.58
  4. 1
  5. 0.86
  6. 9.22
  7. 0.74
  8. 6
  9. 10
  10. 9.72
  11. 5.01
  12. 0.71
  13. 14.42
  14. 30
  15. 0.004
  16. 13.82
  17. 0.038
  18. 0.8
  19. 4
  20. 6.49
  21. 0.054
  22. 0.61
  23. 0.093
  24. 11.11
  25. 9.57
  26. 5.27
  27. 20
  28. 12.14
  29. 40
  30. 0.001
  31. 15.99
  32. 0.055
  33. 12.36
  34. 8.44
  35. 15.64
  36. 11.18
  37. 0.04
  38. 60
  39. 0.009
  40. 0.03

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