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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 137 · 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: 0.42, 0.323, 0.026, 0.4? (a) 0.42 (b) 0.323 (c) 0.026 (d) 0.4
  2. 2.Which is the greatest: 0.2, 0.071, 0.21, 0.131? (a) 0.2 (b) 0.071 (c) 0.21 (d) 0.131
  3. 3.4.66 + 9.4 = ? (a) 5.6 (b) 14.16 (c) 14.06 (d) 13.96
  4. 4.What is the value of the digit 6 in 53.146? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  5. 5.What is the value of the digit 8 in 86.471? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  6. 6.What is the value of the digit 6 in 83.671? (a) 0.06 (b) 0.6 (c) 0.006 (d) 6
  7. 7.Which is the greatest: 0.016, 0.5, 0.51, 0.418? (a) 0.016 (b) 0.5 (c) 0.51 (d) 0.418
  8. 8.What is the value of the digit 5 in 98.253? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  9. 9.5.94 + 4.1 = ? (a) 6.35 (b) 10.14 (c) 9.94 (d) 10.04
  10. 10.3.19 + 6.9 = ? (a) 3.88 (b) 9.99 (c) 10.09 (d) 10.19
  11. 11.What is the value of the digit 3 in 23.948? (a) 30 (b) 0.03 (c) 3 (d) 0.3
  12. 12.6.67 + 9.5 = ? (a) 16.17 (b) 16.27 (c) 16.07 (d) 7.62
  13. 13.What is the value of the digit 7 in 75.834? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  14. 14.3.41 + 5.2 = ? (a) 8.51 (b) 8.61 (c) 8.71 (d) 3.93
  15. 15.What is the value of the digit 2 in 84.172? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  16. 16.What is the value of the digit 6 in 67.529? (a) 0.6 (b) 6 (c) 0.06 (d) 60
  17. 17.What is the value of the digit 6 in 68.219? (a) 0.6 (b) 0.06 (c) 60 (d) 6
  18. 18.What is the value of the digit 2 in 82.531? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  19. 19.7.69 + 1.2 = ? (a) 8.79 (b) 8.89 (c) 7.81 (d) 8.99
  20. 20.Which is the greatest: 0.016, 0.75, 0.654, 0.7? (a) 0.016 (b) 0.75 (c) 0.654 (d) 0.7
  21. 21.What is the value of the digit 7 in 74.831? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  22. 22.Which is the greatest: 0.7, 0.032, 0.72, 0.641? (a) 0.7 (b) 0.032 (c) 0.72 (d) 0.641
  23. 23.What is the value of the digit 6 in 68.295? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  24. 24.9.01 + 6.9 = ? (a) 9.7 (b) 15.81 (c) 15.91 (d) 16.01
  25. 25.Which is the greatest: 0.87, 0.092, 0.8, 0.749? (a) 0.87 (b) 0.092 (c) 0.8 (d) 0.749
  26. 26.1.52 + 3.6 = ? (a) 5.02 (b) 5.22 (c) 5.12 (d) 1.88
  27. 27.What is the value of the digit 8 in 34.781? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  28. 28.Which is the smallest: 0.742, 0.8, 0.016, 0.89? (a) 0.742 (b) 0.8 (c) 0.016 (d) 0.89
  29. 29.What is the value of the digit 5 in 13.695? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  30. 30.What is the value of the digit 7 in 71.259? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  31. 31.Which is the smallest: 0.362, 0.42, 0.4, 0.079? (a) 0.362 (b) 0.42 (c) 0.4 (d) 0.079
  32. 32.Which is the smallest: 0.43, 0.345, 0.072, 0.4? (a) 0.43 (b) 0.345 (c) 0.072 (d) 0.4
  33. 33.Which is the smallest: 0.79, 0.616, 0.091, 0.7? (a) 0.79 (b) 0.616 (c) 0.091 (d) 0.7
  34. 34.Which is the smallest: 0.268, 0.3, 0.054, 0.32? (a) 0.268 (b) 0.3 (c) 0.054 (d) 0.32
  35. 35.What is the value of the digit 3 in 92.763? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  36. 36.What is the value of the digit 7 in 51.647? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  37. 37.1.73 + 3.3 = ? (a) 4.93 (b) 5.03 (c) 5.13 (d) 2.06
  38. 38.What is the value of the digit 5 in 79.285? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  39. 39.1.33 + 4.9 = ? (a) 6.13 (b) 6.33 (c) 1.82 (d) 6.23
  40. 40.What is the value of the digit 2 in 67.259? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002

Answer key

  1. 0.026
  2. 0.21
  3. 14.06
  4. 0.006
  5. 80
  6. 0.6
  7. 0.51
  8. 0.05
  9. 10.04
  10. 10.09
  11. 3
  12. 16.17
  13. 70
  14. 8.61
  15. 0.002
  16. 60
  17. 60
  18. 2
  19. 8.89
  20. 0.75
  21. 70
  22. 0.72
  23. 60
  24. 15.91
  25. 0.87
  26. 5.12
  27. 0.08
  28. 0.016
  29. 0.005
  30. 70
  31. 0.079
  32. 0.072
  33. 0.091
  34. 0.054
  35. 0.003
  36. 0.007
  37. 5.03
  38. 0.005
  39. 6.23
  40. 0.2

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