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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 923 · 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: 0.3, 0.025, 0.34, 0.254? (a) 0.3 (b) 0.025 (c) 0.34 (d) 0.254
  2. 2.8.55 + 3.3 = ? (a) 11.85 (b) 11.75 (c) 8.88 (d) 11.95
  3. 3.What is the value of the digit 2 in 19.632? (a) 0.2 (b) 2 (c) 0.002 (d) 0.02
  4. 4.What is the value of the digit 1 in 61.782? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  5. 5.Which is the greatest: 0.22, 0.2, 0.057, 0.151? (a) 0.22 (b) 0.2 (c) 0.057 (d) 0.151
  6. 6.What is the value of the digit 1 in 91.354? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  7. 7.2.89 + 5.1 = ? (a) 7.89 (b) 8.09 (c) 3.4 (d) 7.99
  8. 8.1.98 + 9.1 = ? (a) 10.98 (b) 11.08 (c) 11.18 (d) 2.89
  9. 9.What is the value of the digit 7 in 95.372? (a) 0.07 (b) 0.7 (c) 7 (d) 0.007
  10. 10.4.72 + 9.1 = ? (a) 13.92 (b) 13.82 (c) 13.72 (d) 5.63
  11. 11.Which is the greatest: 0.21, 0.048, 0.195, 0.2? (a) 0.21 (b) 0.048 (c) 0.195 (d) 0.2
  12. 12.Which is the greatest: 0.5, 0.54, 0.455, 0.089? (a) 0.5 (b) 0.54 (c) 0.455 (d) 0.089
  13. 13.What is the value of the digit 3 in 61.532? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  14. 14.7.77 + 7.1 = ? (a) 8.48 (b) 14.77 (c) 14.97 (d) 14.87
  15. 15.Which is the smallest: 0.092, 0.8, 0.83, 0.711? (a) 0.092 (b) 0.8 (c) 0.83 (d) 0.711
  16. 16.Which is the smallest: 0.187, 0.2, 0.019, 0.21? (a) 0.187 (b) 0.2 (c) 0.019 (d) 0.21
  17. 17.What is the value of the digit 6 in 76.284? (a) 0.6 (b) 60 (c) 6 (d) 0.06
  18. 18.1.77 + 7.1 = ? (a) 2.48 (b) 8.87 (c) 8.77 (d) 8.97
  19. 19.What is the value of the digit 6 in 62.917? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  20. 20.What is the value of the digit 8 in 84.753? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  21. 21.4.57 + 3.6 = ? (a) 8.07 (b) 4.93 (c) 8.17 (d) 8.27
  22. 22.Which is the greatest: 0.745, 0.8, 0.87, 0.093? (a) 0.745 (b) 0.8 (c) 0.87 (d) 0.093
  23. 23.9.19 + 4.4 = ? (a) 9.63 (b) 13.69 (c) 13.49 (d) 13.59
  24. 24.7.04 + 3.9 = ? (a) 10.84 (b) 7.43 (c) 10.94 (d) 11.04
  25. 25.Which is the greatest: 0.263, 0.34, 0.3, 0.015? (a) 0.263 (b) 0.34 (c) 0.3 (d) 0.015
  26. 26.What is the value of the digit 8 in 37.865? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  27. 27.What is the value of the digit 7 in 83.721? (a) 0.7 (b) 0.007 (c) 7 (d) 0.07
  28. 28.What is the value of the digit 1 in 59.214? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  29. 29.Which is the greatest: 0.022, 0.232, 0.32, 0.3? (a) 0.022 (b) 0.232 (c) 0.32 (d) 0.3
  30. 30.1.28 + 1.7 = ? (a) 1.45 (b) 2.98 (c) 3.08 (d) 2.88
  31. 31.What is the value of the digit 6 in 12.657? (a) 0.006 (b) 0.06 (c) 0.6 (d) 6
  32. 32.7.61 + 5.1 = ? (a) 8.12 (b) 12.71 (c) 12.81 (d) 12.61
  33. 33.What is the value of the digit 8 in 49.378? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  34. 34.5.48 + 5.6 = ? (a) 6.04 (b) 11.18 (c) 11.08 (d) 10.98
  35. 35.6.99 + 3.3 = ? (a) 10.39 (b) 7.32 (c) 10.29 (d) 10.19
  36. 36.What is the value of the digit 2 in 14.238? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  37. 37.What is the value of the digit 2 in 78.231? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  38. 38.What is the value of the digit 8 in 63.287? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  39. 39.Which is the greatest: 0.794, 0.8, 0.85, 0.021? (a) 0.794 (b) 0.8 (c) 0.85 (d) 0.021
  40. 40.Which is the greatest: 0.482, 0.52, 0.072, 0.5? (a) 0.482 (b) 0.52 (c) 0.072 (d) 0.5

Answer key

  1. 0.025
  2. 11.85
  3. 0.002
  4. 1
  5. 0.22
  6. 1
  7. 7.99
  8. 11.08
  9. 0.07
  10. 13.82
  11. 0.21
  12. 0.54
  13. 0.03
  14. 14.87
  15. 0.092
  16. 0.019
  17. 6
  18. 8.87
  19. 60
  20. 80
  21. 8.17
  22. 0.87
  23. 13.59
  24. 10.94
  25. 0.34
  26. 0.8
  27. 0.7
  28. 0.01
  29. 0.32
  30. 2.98
  31. 0.6
  32. 12.71
  33. 0.008
  34. 11.08
  35. 10.29
  36. 0.2
  37. 0.2
  38. 0.08
  39. 0.85
  40. 0.52

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