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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 1 · 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 1 in 12.694? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  2. 2.What is the value of the digit 2 in 36.524? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  3. 3.Which is the smallest: 0.018, 0.6, 0.536, 0.62? (a) 0.018 (b) 0.6 (c) 0.536 (d) 0.62
  4. 4.Which is the smallest: 0.532, 0.64, 0.6, 0.049? (a) 0.532 (b) 0.64 (c) 0.6 (d) 0.049
  5. 5.1.15 + 9.1 = ? (a) 10.25 (b) 2.06 (c) 10.15 (d) 10.35
  6. 6.What is the value of the digit 5 in 82.935? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  7. 7.2.01 + 8.2 = ? (a) 10.31 (b) 10.11 (c) 2.83 (d) 10.21
  8. 8.What is the value of the digit 2 in 21.967? (a) 20 (b) 0.2 (c) 2 (d) 0.02
  9. 9.What is the value of the digit 1 in 17.538? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  10. 10.2.09 + 6.1 = ? (a) 2.7 (b) 8.09 (c) 8.29 (d) 8.19
  11. 11.Which is the greatest: 0.087, 0.45, 0.357, 0.4? (a) 0.087 (b) 0.45 (c) 0.357 (d) 0.4
  12. 12.1.73 + 1.6 = ? (a) 3.23 (b) 3.43 (c) 3.33 (d) 1.89
  13. 13.What is the value of the digit 5 in 65.421? (a) 0.05 (b) 5 (c) 0.5 (d) 50
  14. 14.What is the value of the digit 6 in 62.173? (a) 6 (b) 60 (c) 0.06 (d) 0.6
  15. 15.4.46 + 1.8 = ? (a) 6.16 (b) 6.36 (c) 6.26 (d) 4.64
  16. 16.What is the value of the digit 5 in 41.695? (a) 5 (b) 0.005 (c) 0.05 (d) 0.5
  17. 17.Which is the greatest: 0.55, 0.094, 0.492, 0.5? (a) 0.55 (b) 0.094 (c) 0.492 (d) 0.5
  18. 18.What is the value of the digit 9 in 81.934? (a) 0.009 (b) 9 (c) 0.9 (d) 0.09
  19. 19.What is the value of the digit 7 in 17.429? (a) 7 (b) 0.07 (c) 70 (d) 0.7
  20. 20.2.43 + 2.7 = ? (a) 5.23 (b) 5.03 (c) 5.13 (d) 2.7
  21. 21.4.41 + 8.7 = ? (a) 13.21 (b) 13.11 (c) 13.01 (d) 5.28
  22. 22.Which is the greatest: 0.3, 0.37, 0.024, 0.228? (a) 0.3 (b) 0.37 (c) 0.024 (d) 0.228
  23. 23.4.66 + 3.5 = ? (a) 8.06 (b) 5.01 (c) 8.16 (d) 8.26
  24. 24.What is the value of the digit 6 in 36.475? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  25. 25.What is the value of the digit 5 in 19.357? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  26. 26.Which is the greatest: 0.4, 0.384, 0.063, 0.45? (a) 0.4 (b) 0.384 (c) 0.063 (d) 0.45
  27. 27.What is the value of the digit 9 in 69.258? (a) 0.9 (b) 90 (c) 0.09 (d) 9
  28. 28.1.21 + 5.7 = ? (a) 1.78 (b) 6.81 (c) 7.01 (d) 6.91
  29. 29.Which is the greatest: 0.3, 0.024, 0.32, 0.239? (a) 0.3 (b) 0.024 (c) 0.32 (d) 0.239
  30. 30.What is the value of the digit 7 in 91.257? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  31. 31.Which is the smallest: 0.135, 0.2, 0.29, 0.019? (a) 0.135 (b) 0.2 (c) 0.29 (d) 0.019
  32. 32.What is the value of the digit 9 in 15.439? (a) 0.09 (b) 9 (c) 0.009 (d) 0.9
  33. 33.Which is the smallest: 0.269, 0.34, 0.3, 0.017? (a) 0.269 (b) 0.34 (c) 0.3 (d) 0.017
  34. 34.9.51 + 9.1 = ? (a) 18.51 (b) 10.42 (c) 18.61 (d) 18.71
  35. 35.7.55 + 6.1 = ? (a) 8.16 (b) 13.75 (c) 13.55 (d) 13.65
  36. 36.7.41 + 5.1 = ? (a) 12.51 (b) 12.61 (c) 12.41 (d) 7.92
  37. 37.What is the value of the digit 1 in 92.318? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  38. 38.Which is the smallest: 0.015, 0.73, 0.686, 0.7? (a) 0.015 (b) 0.73 (c) 0.686 (d) 0.7
  39. 39.Which is the greatest: 0.067, 0.76, 0.678, 0.7? (a) 0.067 (b) 0.76 (c) 0.678 (d) 0.7
  40. 40.What is the value of the digit 9 in 39.427? (a) 0.9 (b) 90 (c) 0.09 (d) 9

Answer key

  1. 10
  2. 0.02
  3. 0.018
  4. 0.049
  5. 10.25
  6. 0.005
  7. 10.21
  8. 20
  9. 10
  10. 8.19
  11. 0.45
  12. 3.33
  13. 5
  14. 60
  15. 6.26
  16. 0.005
  17. 0.55
  18. 0.9
  19. 7
  20. 5.13
  21. 13.11
  22. 0.37
  23. 8.16
  24. 6
  25. 0.05
  26. 0.45
  27. 9
  28. 6.91
  29. 0.32
  30. 0.007
  31. 0.019
  32. 0.009
  33. 0.017
  34. 18.61
  35. 13.65
  36. 12.51
  37. 0.01
  38. 0.015
  39. 0.76
  40. 9

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