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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 243 · 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: 0.8, 0.712, 0.097, 0.82? (a) 0.8 (b) 0.712 (c) 0.097 (d) 0.82
  2. 2.Which is the greatest: 0.243, 0.064, 0.3, 0.32? (a) 0.243 (b) 0.064 (c) 0.3 (d) 0.32
  3. 3.Which is the smallest: 0.62, 0.025, 0.578, 0.6? (a) 0.62 (b) 0.025 (c) 0.578 (d) 0.6
  4. 4.9.99 + 7.7 = ? (a) 17.59 (b) 10.76 (c) 17.69 (d) 17.79
  5. 5.What is the value of the digit 3 in 58.213? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  6. 6.What is the value of the digit 8 in 21.748? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  7. 7.6.26 + 1.3 = ? (a) 7.56 (b) 7.66 (c) 6.39 (d) 7.46
  8. 8.What is the value of the digit 2 in 25.419? (a) 20 (b) 0.2 (c) 2 (d) 0.02
  9. 9.Which is the greatest: 0.165, 0.2, 0.066, 0.22? (a) 0.165 (b) 0.2 (c) 0.066 (d) 0.22
  10. 10.What is the value of the digit 2 in 36.892? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02
  11. 11.Which is the smallest: 0.2, 0.164, 0.081, 0.21? (a) 0.2 (b) 0.164 (c) 0.081 (d) 0.21
  12. 12.6.43 + 7.2 = ? (a) 7.15 (b) 13.53 (c) 13.63 (d) 13.73
  13. 13.Which is the greatest: 0.33, 0.3, 0.281, 0.099? (a) 0.33 (b) 0.3 (c) 0.281 (d) 0.099
  14. 14.Which is the smallest: 0.65, 0.6, 0.577, 0.052? (a) 0.65 (b) 0.6 (c) 0.577 (d) 0.052
  15. 15.Which is the greatest: 0.2, 0.22, 0.156, 0.077? (a) 0.2 (b) 0.22 (c) 0.156 (d) 0.077
  16. 16.What is the value of the digit 6 in 97.526? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  17. 17.Which is the smallest: 0.265, 0.013, 0.3, 0.31? (a) 0.265 (b) 0.013 (c) 0.3 (d) 0.31
  18. 18.Which is the greatest: 0.011, 0.8, 0.84, 0.721? (a) 0.011 (b) 0.8 (c) 0.84 (d) 0.721
  19. 19.4.43 + 8.2 = ? (a) 12.53 (b) 12.63 (c) 12.73 (d) 5.25
  20. 20.6.32 + 1.6 = ? (a) 7.82 (b) 8.02 (c) 7.92 (d) 6.48
  21. 21.2.31 + 6.9 = ? (a) 9.31 (b) 9.11 (c) 9.21 (d) 3
  22. 22.7.09 + 5.2 = ? (a) 12.39 (b) 12.29 (c) 7.61 (d) 12.19
  23. 23.Which is the smallest: 0.67, 0.534, 0.6, 0.042? (a) 0.67 (b) 0.534 (c) 0.6 (d) 0.042
  24. 24.Which is the smallest: 0.268, 0.33, 0.083, 0.3? (a) 0.268 (b) 0.33 (c) 0.083 (d) 0.3
  25. 25.What is the value of the digit 2 in 64.723? (a) 2 (b) 0.002 (c) 0.02 (d) 0.2
  26. 26.Which is the smallest: 0.495, 0.59, 0.5, 0.043? (a) 0.495 (b) 0.59 (c) 0.5 (d) 0.043
  27. 27.Which is the greatest: 0.74, 0.055, 0.684, 0.7? (a) 0.74 (b) 0.055 (c) 0.684 (d) 0.7
  28. 28.What is the value of the digit 1 in 31.756? (a) 1 (b) 0.01 (c) 10 (d) 0.1
  29. 29.What is the value of the digit 2 in 58.942? (a) 0.2 (b) 2 (c) 0.02 (d) 0.002
  30. 30.7.12 + 1.5 = ? (a) 7.27 (b) 8.72 (c) 8.62 (d) 8.52
  31. 31.Which is the smallest: 0.263, 0.37, 0.032, 0.3? (a) 0.263 (b) 0.37 (c) 0.032 (d) 0.3
  32. 32.Which is the greatest: 0.635, 0.075, 0.7, 0.79? (a) 0.635 (b) 0.075 (c) 0.7 (d) 0.79
  33. 33.4.23 + 2.1 = ? (a) 6.23 (b) 6.33 (c) 6.43 (d) 4.44
  34. 34.What is the value of the digit 9 in 19.784? (a) 90 (b) 9 (c) 0.9 (d) 0.09
  35. 35.Which is the greatest: 0.8, 0.765, 0.81, 0.075? (a) 0.8 (b) 0.765 (c) 0.81 (d) 0.075
  36. 36.What is the value of the digit 3 in 35.896? (a) 0.3 (b) 30 (c) 3 (d) 0.03
  37. 37.What is the value of the digit 8 in 76.498? (a) 0.08 (b) 0.008 (c) 8 (d) 0.8
  38. 38.Which is the greatest: 0.044, 0.4, 0.41, 0.345? (a) 0.044 (b) 0.4 (c) 0.41 (d) 0.345
  39. 39.Which is the smallest: 0.659, 0.7, 0.75, 0.018? (a) 0.659 (b) 0.7 (c) 0.75 (d) 0.018
  40. 40.What is the value of the digit 7 in 21.754? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007

Answer key

  1. 0.097
  2. 0.32
  3. 0.025
  4. 17.69
  5. 0.003
  6. 0.008
  7. 7.56
  8. 20
  9. 0.22
  10. 0.002
  11. 0.081
  12. 13.63
  13. 0.33
  14. 0.052
  15. 0.22
  16. 0.006
  17. 0.013
  18. 0.84
  19. 12.63
  20. 7.92
  21. 9.21
  22. 12.29
  23. 0.042
  24. 0.083
  25. 0.02
  26. 0.043
  27. 0.74
  28. 1
  29. 0.002
  30. 8.62
  31. 0.032
  32. 0.79
  33. 6.33
  34. 9
  35. 0.81
  36. 30
  37. 0.008
  38. 0.41
  39. 0.018
  40. 0.7

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