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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 18 · 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 8 in 13.928? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  2. 2.Which is the greatest: 0.55, 0.067, 0.5, 0.494? (a) 0.55 (b) 0.067 (c) 0.5 (d) 0.494
  3. 3.What is the value of the digit 9 in 17.569? (a) 0.09 (b) 0.9 (c) 0.009 (d) 9
  4. 4.Which is the greatest: 0.2, 0.028, 0.146, 0.23? (a) 0.2 (b) 0.028 (c) 0.146 (d) 0.23
  5. 5.What is the value of the digit 2 in 15.328? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  6. 6.2.71 + 7.6 = ? (a) 10.41 (b) 10.21 (c) 10.31 (d) 3.47
  7. 7.Which is the greatest: 0.789, 0.8, 0.84, 0.053? (a) 0.789 (b) 0.8 (c) 0.84 (d) 0.053
  8. 8.What is the value of the digit 5 in 24.135? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  9. 9.Which is the smallest: 0.256, 0.098, 0.3, 0.31? (a) 0.256 (b) 0.098 (c) 0.3 (d) 0.31
  10. 10.2.81 + 8.1 = ? (a) 11.01 (b) 3.62 (c) 10.81 (d) 10.91
  11. 11.What is the value of the digit 3 in 39.164? (a) 3 (b) 0.03 (c) 0.3 (d) 30
  12. 12.Which is the smallest: 0.083, 0.2, 0.139, 0.26? (a) 0.083 (b) 0.2 (c) 0.139 (d) 0.26
  13. 13.2.67 + 7.1 = ? (a) 9.67 (b) 9.87 (c) 9.77 (d) 3.38
  14. 14.Which is the greatest: 0.155, 0.2, 0.21, 0.089? (a) 0.155 (b) 0.2 (c) 0.21 (d) 0.089
  15. 15.3.37 + 1.8 = ? (a) 3.55 (b) 5.17 (c) 5.27 (d) 5.07
  16. 16.Which is the greatest: 0.681, 0.7, 0.71, 0.012? (a) 0.681 (b) 0.7 (c) 0.71 (d) 0.012
  17. 17.What is the value of the digit 1 in 58.139? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  18. 18.What is the value of the digit 9 in 32.194? (a) 9 (b) 0.009 (c) 0.9 (d) 0.09
  19. 19.1.21 + 1.8 = ? (a) 3.11 (b) 1.39 (c) 2.91 (d) 3.01
  20. 20.Which is the greatest: 0.74, 0.7, 0.078, 0.663? (a) 0.74 (b) 0.7 (c) 0.078 (d) 0.663
  21. 21.What is the value of the digit 3 in 63.847? (a) 0.3 (b) 0.03 (c) 30 (d) 3
  22. 22.Which is the smallest: 0.27, 0.2, 0.125, 0.083? (a) 0.27 (b) 0.2 (c) 0.125 (d) 0.083
  23. 23.Which is the smallest: 0.055, 0.56, 0.451, 0.5? (a) 0.055 (b) 0.56 (c) 0.451 (d) 0.5
  24. 24.What is the value of the digit 2 in 37.921? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  25. 25.Which is the smallest: 0.424, 0.57, 0.097, 0.5? (a) 0.424 (b) 0.57 (c) 0.097 (d) 0.5
  26. 26.What is the value of the digit 5 in 31.825? (a) 5 (b) 0.05 (c) 0.5 (d) 0.005
  27. 27.What is the value of the digit 6 in 63.492? (a) 0.06 (b) 60 (c) 0.6 (d) 6
  28. 28.Which is the greatest: 0.096, 0.686, 0.74, 0.7? (a) 0.096 (b) 0.686 (c) 0.74 (d) 0.7
  29. 29.Which is the smallest: 0.27, 0.119, 0.067, 0.2? (a) 0.27 (b) 0.119 (c) 0.067 (d) 0.2
  30. 30.2.34 + 7.1 = ? (a) 9.54 (b) 3.05 (c) 9.34 (d) 9.44
  31. 31.Which is the greatest: 0.093, 0.3, 0.37, 0.291? (a) 0.093 (b) 0.3 (c) 0.37 (d) 0.291
  32. 32.Which is the greatest: 0.145, 0.28, 0.041, 0.2? (a) 0.145 (b) 0.28 (c) 0.041 (d) 0.2
  33. 33.Which is the smallest: 0.3, 0.36, 0.252, 0.041? (a) 0.3 (b) 0.36 (c) 0.252 (d) 0.041
  34. 34.Which is the greatest: 0.775, 0.81, 0.8, 0.024? (a) 0.775 (b) 0.81 (c) 0.8 (d) 0.024
  35. 35.Which is the smallest: 0.014, 0.7, 0.74, 0.613? (a) 0.014 (b) 0.7 (c) 0.74 (d) 0.613
  36. 36.2.22 + 2.1 = ? (a) 2.43 (b) 4.32 (c) 4.42 (d) 4.22
  37. 37.2.51 + 3.2 = ? (a) 2.83 (b) 5.61 (c) 5.71 (d) 5.81
  38. 38.Which is the greatest: 0.032, 0.282, 0.37, 0.3? (a) 0.032 (b) 0.282 (c) 0.37 (d) 0.3
  39. 39.Which is the smallest: 0.061, 0.34, 0.3, 0.221? (a) 0.061 (b) 0.34 (c) 0.3 (d) 0.221
  40. 40.Which is the smallest: 0.4, 0.366, 0.024, 0.42? (a) 0.4 (b) 0.366 (c) 0.024 (d) 0.42

Answer key

  1. 0.008
  2. 0.55
  3. 0.009
  4. 0.23
  5. 0.02
  6. 10.31
  7. 0.84
  8. 0.005
  9. 0.098
  10. 10.91
  11. 30
  12. 0.083
  13. 9.77
  14. 0.21
  15. 5.17
  16. 0.71
  17. 0.1
  18. 0.09
  19. 3.01
  20. 0.74
  21. 3
  22. 0.083
  23. 0.055
  24. 0.02
  25. 0.097
  26. 0.005
  27. 60
  28. 0.74
  29. 0.067
  30. 9.44
  31. 0.37
  32. 0.28
  33. 0.041
  34. 0.81
  35. 0.014
  36. 4.32
  37. 5.71
  38. 0.37
  39. 0.061
  40. 0.024

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