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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 10 · 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 9 in 59.682? (a) 9 (b) 90 (c) 0.9 (d) 0.09
  2. 2.5.71 + 8.2 = ? (a) 6.53 (b) 13.81 (c) 14.01 (d) 13.91
  3. 3.What is the value of the digit 2 in 24.173? (a) 0.2 (b) 2 (c) 0.02 (d) 20
  4. 4.Which is the greatest: 0.055, 0.8, 0.712, 0.82? (a) 0.055 (b) 0.8 (c) 0.712 (d) 0.82
  5. 5.Which is the greatest: 0.693, 0.74, 0.088, 0.7? (a) 0.693 (b) 0.74 (c) 0.088 (d) 0.7
  6. 6.What is the value of the digit 7 in 91.725? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  7. 7.What is the value of the digit 2 in 26.574? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  8. 8.7.14 + 1.3 = ? (a) 8.54 (b) 8.34 (c) 8.44 (d) 7.27
  9. 9.What is the value of the digit 3 in 34.195? (a) 0.03 (b) 3 (c) 30 (d) 0.3
  10. 10.Which is the smallest: 0.7, 0.78, 0.029, 0.664? (a) 0.7 (b) 0.78 (c) 0.029 (d) 0.664
  11. 11.6.69 + 8.8 = ? (a) 15.49 (b) 15.39 (c) 7.57 (d) 15.59
  12. 12.4.42 + 7.2 = ? (a) 11.52 (b) 11.62 (c) 11.72 (d) 5.14
  13. 13.Which is the greatest: 0.695, 0.036, 0.7, 0.78? (a) 0.695 (b) 0.036 (c) 0.7 (d) 0.78
  14. 14.5.92 + 1.1 = ? (a) 7.12 (b) 7.02 (c) 6.92 (d) 6.03
  15. 15.What is the value of the digit 4 in 29.745? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  16. 16.Which is the smallest: 0.83, 0.097, 0.781, 0.8? (a) 0.83 (b) 0.097 (c) 0.781 (d) 0.8
  17. 17.1.06 + 6.5 = ? (a) 7.66 (b) 7.46 (c) 7.56 (d) 1.71
  18. 18.4.29 + 1.3 = ? (a) 5.49 (b) 5.59 (c) 4.42 (d) 5.69
  19. 19.9.52 + 9.1 = ? (a) 18.52 (b) 10.43 (c) 18.62 (d) 18.72
  20. 20.What is the value of the digit 6 in 98.276? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  21. 21.2.73 + 5.9 = ? (a) 3.32 (b) 8.53 (c) 8.63 (d) 8.73
  22. 22.1.74 + 6.9 = ? (a) 8.64 (b) 8.54 (c) 2.43 (d) 8.74
  23. 23.9.77 + 8.8 = ? (a) 18.57 (b) 18.67 (c) 10.65 (d) 18.47
  24. 24.5.04 + 4.4 = ? (a) 9.34 (b) 9.54 (c) 9.44 (d) 5.48
  25. 25.Which is the smallest: 0.098, 0.691, 0.7, 0.74? (a) 0.098 (b) 0.691 (c) 0.7 (d) 0.74
  26. 26.Which is the smallest: 0.4, 0.46, 0.015, 0.341? (a) 0.4 (b) 0.46 (c) 0.015 (d) 0.341
  27. 27.Which is the smallest: 0.074, 0.466, 0.56, 0.5? (a) 0.074 (b) 0.466 (c) 0.56 (d) 0.5
  28. 28.What is the value of the digit 8 in 78.196? (a) 0.8 (b) 80 (c) 8 (d) 0.08
  29. 29.Which is the smallest: 0.048, 0.3, 0.32, 0.257? (a) 0.048 (b) 0.3 (c) 0.32 (d) 0.257
  30. 30.What is the value of the digit 8 in 67.892? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  31. 31.2.76 + 2.2 = ? (a) 2.98 (b) 4.96 (c) 4.86 (d) 5.06
  32. 32.Which is the greatest: 0.078, 0.3, 0.39, 0.262? (a) 0.078 (b) 0.3 (c) 0.39 (d) 0.262
  33. 33.Which is the greatest: 0.62, 0.6, 0.565, 0.054? (a) 0.62 (b) 0.6 (c) 0.565 (d) 0.054
  34. 34.6.73 + 4.6 = ? (a) 11.33 (b) 7.19 (c) 11.43 (d) 11.23
  35. 35.Which is the greatest: 0.232, 0.023, 0.39, 0.3? (a) 0.232 (b) 0.023 (c) 0.39 (d) 0.3
  36. 36.5.21 + 6.4 = ? (a) 11.61 (b) 11.71 (c) 11.51 (d) 5.85
  37. 37.8.95 + 2.1 = ? (a) 10.95 (b) 11.15 (c) 9.16 (d) 11.05
  38. 38.What is the value of the digit 5 in 89.527? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  39. 39.7.54 + 7.1 = ? (a) 14.64 (b) 14.74 (c) 14.54 (d) 8.25
  40. 40.4.89 + 7.5 = ? (a) 12.29 (b) 12.39 (c) 12.49 (d) 5.64

Answer key

  1. 9
  2. 13.91
  3. 20
  4. 0.82
  5. 0.74
  6. 0.7
  7. 20
  8. 8.44
  9. 30
  10. 0.029
  11. 15.49
  12. 11.62
  13. 0.78
  14. 7.02
  15. 0.04
  16. 0.097
  17. 7.56
  18. 5.59
  19. 18.62
  20. 0.006
  21. 8.63
  22. 8.64
  23. 18.57
  24. 9.44
  25. 0.098
  26. 0.015
  27. 0.074
  28. 8
  29. 0.048
  30. 0.8
  31. 4.96
  32. 0.39
  33. 0.62
  34. 11.33
  35. 0.39
  36. 11.61
  37. 11.05
  38. 0.5
  39. 14.64
  40. 12.39

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