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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 298 · 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: 0.72, 0.669, 0.7, 0.081? (a) 0.72 (b) 0.669 (c) 0.7 (d) 0.081
  2. 2.Which is the smallest: 0.41, 0.339, 0.046, 0.4? (a) 0.41 (b) 0.339 (c) 0.046 (d) 0.4
  3. 3.What is the value of the digit 4 in 45.293? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  4. 4.Which is the smallest: 0.022, 0.297, 0.33, 0.3? (a) 0.022 (b) 0.297 (c) 0.33 (d) 0.3
  5. 5.Which is the smallest: 0.35, 0.055, 0.3, 0.261? (a) 0.35 (b) 0.055 (c) 0.3 (d) 0.261
  6. 6.Which is the greatest: 0.715, 0.89, 0.032, 0.8? (a) 0.715 (b) 0.89 (c) 0.032 (d) 0.8
  7. 7.What is the value of the digit 6 in 69.172? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  8. 8.What is the value of the digit 2 in 12.479? (a) 20 (b) 2 (c) 0.02 (d) 0.2
  9. 9.Which is the smallest: 0.27, 0.194, 0.2, 0.085? (a) 0.27 (b) 0.194 (c) 0.2 (d) 0.085
  10. 10.Which is the smallest: 0.612, 0.055, 0.7, 0.77? (a) 0.612 (b) 0.055 (c) 0.7 (d) 0.77
  11. 11.1.65 + 8.3 = ? (a) 2.48 (b) 10.05 (c) 9.85 (d) 9.95
  12. 12.What is the value of the digit 4 in 83.541? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  13. 13.What is the value of the digit 9 in 19.742? (a) 90 (b) 0.09 (c) 9 (d) 0.9
  14. 14.What is the value of the digit 4 in 34.728? (a) 40 (b) 4 (c) 0.4 (d) 0.04
  15. 15.Which is the greatest: 0.85, 0.027, 0.8, 0.798? (a) 0.85 (b) 0.027 (c) 0.8 (d) 0.798
  16. 16.Which is the smallest: 0.2, 0.195, 0.22, 0.047? (a) 0.2 (b) 0.195 (c) 0.22 (d) 0.047
  17. 17.What is the value of the digit 2 in 25.691? (a) 2 (b) 0.02 (c) 0.2 (d) 20
  18. 18.1.37 + 1.2 = ? (a) 2.57 (b) 1.49 (c) 2.67 (d) 2.47
  19. 19.Which is the greatest: 0.4, 0.356, 0.47, 0.057? (a) 0.4 (b) 0.356 (c) 0.47 (d) 0.057
  20. 20.Which is the greatest: 0.5, 0.411, 0.088, 0.59? (a) 0.5 (b) 0.411 (c) 0.088 (d) 0.59
  21. 21.3.04 + 4.9 = ? (a) 3.53 (b) 8.04 (c) 7.94 (d) 7.84
  22. 22.2.43 + 9.1 = ? (a) 3.34 (b) 11.43 (c) 11.53 (d) 11.63
  23. 23.Which is the greatest: 0.553, 0.027, 0.64, 0.6? (a) 0.553 (b) 0.027 (c) 0.64 (d) 0.6
  24. 24.What is the value of the digit 9 in 23.947? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  25. 25.5.82 + 3.2 = ? (a) 8.92 (b) 9.02 (c) 6.14 (d) 9.12
  26. 26.7.87 + 5.6 = ? (a) 8.43 (b) 13.57 (c) 13.47 (d) 13.37
  27. 27.7.71 + 5.8 = ? (a) 13.51 (b) 13.61 (c) 13.41 (d) 8.29
  28. 28.Which is the smallest: 0.2, 0.034, 0.122, 0.28? (a) 0.2 (b) 0.034 (c) 0.122 (d) 0.28
  29. 29.1.59 + 2.2 = ? (a) 3.89 (b) 3.69 (c) 3.79 (d) 1.81
  30. 30.What is the value of the digit 2 in 92.165? (a) 20 (b) 0.2 (c) 2 (d) 0.02
  31. 31.What is the value of the digit 3 in 23.576? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  32. 32.What is the value of the digit 6 in 69.834? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  33. 33.7.01 + 6.9 = ? (a) 13.91 (b) 14.01 (c) 13.81 (d) 7.7
  34. 34.Which is the smallest: 0.6, 0.62, 0.559, 0.086? (a) 0.6 (b) 0.62 (c) 0.559 (d) 0.086
  35. 35.6.76 + 3.4 = ? (a) 7.1 (b) 10.06 (c) 10.26 (d) 10.16
  36. 36.9.94 + 3.6 = ? (a) 10.3 (b) 13.44 (c) 13.54 (d) 13.64
  37. 37.4.53 + 4.2 = ? (a) 4.95 (b) 8.83 (c) 8.73 (d) 8.63
  38. 38.4.51 + 1.8 = ? (a) 4.69 (b) 6.21 (c) 6.31 (d) 6.41
  39. 39.Which is the greatest: 0.3, 0.048, 0.215, 0.31? (a) 0.3 (b) 0.048 (c) 0.215 (d) 0.31
  40. 40.4.73 + 6.1 = ? (a) 10.93 (b) 5.34 (c) 10.73 (d) 10.83

Answer key

  1. 0.081
  2. 0.046
  3. 40
  4. 0.022
  5. 0.055
  6. 0.89
  7. 60
  8. 2
  9. 0.085
  10. 0.055
  11. 9.95
  12. 0.04
  13. 9
  14. 4
  15. 0.85
  16. 0.047
  17. 20
  18. 2.57
  19. 0.47
  20. 0.59
  21. 7.94
  22. 11.53
  23. 0.64
  24. 0.9
  25. 9.02
  26. 13.47
  27. 13.51
  28. 0.034
  29. 3.79
  30. 2
  31. 3
  32. 60
  33. 13.91
  34. 0.086
  35. 10.16
  36. 13.54
  37. 8.73
  38. 6.31
  39. 0.31
  40. 10.83

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