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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 175 · 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 2 in 61.285? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  2. 2.What is the value of the digit 8 in 28.164? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  3. 3.What is the value of the digit 7 in 35.172? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  4. 4.What is the value of the digit 5 in 42.975? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  5. 5.Which is the smallest: 0.36, 0.045, 0.285, 0.3? (a) 0.36 (b) 0.045 (c) 0.285 (d) 0.3
  6. 6.Which is the greatest: 0.616, 0.7, 0.78, 0.029? (a) 0.616 (b) 0.7 (c) 0.78 (d) 0.029
  7. 7.What is the value of the digit 6 in 16.279? (a) 6 (b) 60 (c) 0.6 (d) 0.06
  8. 8.What is the value of the digit 1 in 34.812? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  9. 9.What is the value of the digit 2 in 28.751? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  10. 10.5.19 + 1.7 = ? (a) 6.89 (b) 6.99 (c) 5.36 (d) 6.79
  11. 11.Which is the greatest: 0.8, 0.84, 0.019, 0.782? (a) 0.8 (b) 0.84 (c) 0.019 (d) 0.782
  12. 12.Which is the greatest: 0.186, 0.027, 0.2, 0.28? (a) 0.186 (b) 0.027 (c) 0.2 (d) 0.28
  13. 13.What is the value of the digit 8 in 52.843? (a) 0.008 (b) 8 (c) 0.8 (d) 0.08
  14. 14.What is the value of the digit 3 in 72.835? (a) 0.3 (b) 0.003 (c) 3 (d) 0.03
  15. 15.Which is the greatest: 0.33, 0.3, 0.216, 0.081? (a) 0.33 (b) 0.3 (c) 0.216 (d) 0.081
  16. 16.9.44 + 3.4 = ? (a) 12.84 (b) 12.74 (c) 9.78 (d) 12.94
  17. 17.What is the value of the digit 6 in 92.674? (a) 0.6 (b) 0.006 (c) 6 (d) 0.06
  18. 18.What is the value of the digit 7 in 18.743? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  19. 19.1.76 + 7.8 = ? (a) 9.56 (b) 9.66 (c) 2.54 (d) 9.46
  20. 20.Which is the greatest: 0.082, 0.87, 0.743, 0.8? (a) 0.082 (b) 0.87 (c) 0.743 (d) 0.8
  21. 21.2.02 + 8.4 = ? (a) 10.42 (b) 10.32 (c) 2.86 (d) 10.52
  22. 22.Which is the smallest: 0.64, 0.516, 0.6, 0.029? (a) 0.64 (b) 0.516 (c) 0.6 (d) 0.029
  23. 23.6.61 + 5.1 = ? (a) 11.61 (b) 11.81 (c) 11.71 (d) 7.12
  24. 24.5.09 + 4.1 = ? (a) 5.5 (b) 9.09 (c) 9.19 (d) 9.29
  25. 25.Which is the greatest: 0.021, 0.6, 0.67, 0.517? (a) 0.021 (b) 0.6 (c) 0.67 (d) 0.517
  26. 26.Which is the smallest: 0.84, 0.8, 0.761, 0.042? (a) 0.84 (b) 0.8 (c) 0.761 (d) 0.042
  27. 27.1.48 + 5.5 = ? (a) 6.88 (b) 2.03 (c) 7.08 (d) 6.98
  28. 28.Which is the smallest: 0.213, 0.38, 0.094, 0.3? (a) 0.213 (b) 0.38 (c) 0.094 (d) 0.3
  29. 29.Which is the smallest: 0.044, 0.581, 0.6, 0.61? (a) 0.044 (b) 0.581 (c) 0.6 (d) 0.61
  30. 30.Which is the greatest: 0.091, 0.219, 0.3, 0.31? (a) 0.091 (b) 0.219 (c) 0.3 (d) 0.31
  31. 31.Which is the greatest: 0.515, 0.094, 0.64, 0.6? (a) 0.515 (b) 0.094 (c) 0.64 (d) 0.6
  32. 32.1.13 + 4.8 = ? (a) 1.61 (b) 6.03 (c) 5.83 (d) 5.93
  33. 33.What is the value of the digit 7 in 12.673? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  34. 34.7.37 + 3.6 = ? (a) 7.73 (b) 10.97 (c) 10.87 (d) 11.07
  35. 35.Which is the greatest: 0.017, 0.35, 0.3, 0.276? (a) 0.017 (b) 0.35 (c) 0.3 (d) 0.276
  36. 36.What is the value of the digit 8 in 82.395? (a) 80 (b) 0.08 (c) 0.8 (d) 8
  37. 37.Which is the smallest: 0.244, 0.013, 0.3, 0.32? (a) 0.244 (b) 0.013 (c) 0.3 (d) 0.32
  38. 38.What is the value of the digit 5 in 25.173? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  39. 39.4.26 + 3.3 = ? (a) 7.66 (b) 7.56 (c) 7.46 (d) 4.59
  40. 40.4.56 + 1.4 = ? (a) 6.06 (b) 5.96 (c) 4.7 (d) 5.86

Answer key

  1. 0.2
  2. 8
  3. 0.07
  4. 0.005
  5. 0.045
  6. 0.78
  7. 6
  8. 0.01
  9. 20
  10. 6.89
  11. 0.84
  12. 0.28
  13. 0.8
  14. 0.03
  15. 0.33
  16. 12.84
  17. 0.6
  18. 0.7
  19. 9.56
  20. 0.87
  21. 10.42
  22. 0.029
  23. 11.71
  24. 9.19
  25. 0.67
  26. 0.042
  27. 6.98
  28. 0.094
  29. 0.044
  30. 0.31
  31. 0.64
  32. 5.93
  33. 0.07
  34. 10.97
  35. 0.35
  36. 80
  37. 0.013
  38. 5
  39. 7.56
  40. 5.96

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