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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 963 · 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: 0.535, 0.6, 0.62, 0.018? (a) 0.535 (b) 0.6 (c) 0.62 (d) 0.018
  2. 2.1.68 + 5.6 = ? (a) 7.18 (b) 7.38 (c) 7.28 (d) 2.24
  3. 3.What is the value of the digit 4 in 43.582? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  4. 4.5.16 + 4.7 = ? (a) 9.86 (b) 5.63 (c) 9.76 (d) 9.96
  5. 5.Which is the smallest: 0.055, 0.75, 0.686, 0.7? (a) 0.055 (b) 0.75 (c) 0.686 (d) 0.7
  6. 6.What is the value of the digit 2 in 39.261? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  7. 7.What is the value of the digit 1 in 41.873? (a) 10 (b) 0.1 (c) 1 (d) 0.01
  8. 8.What is the value of the digit 7 in 87.356? (a) 0.7 (b) 7 (c) 70 (d) 0.07
  9. 9.1.67 + 2.5 = ? (a) 4.07 (b) 4.27 (c) 4.17 (d) 1.92
  10. 10.What is the value of the digit 5 in 98.543? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  11. 11.Which is the greatest: 0.5, 0.54, 0.069, 0.417? (a) 0.5 (b) 0.54 (c) 0.069 (d) 0.417
  12. 12.What is the value of the digit 7 in 24.789? (a) 7 (b) 0.7 (c) 0.07 (d) 0.007
  13. 13.Which is the greatest: 0.517, 0.6, 0.094, 0.69? (a) 0.517 (b) 0.6 (c) 0.094 (d) 0.69
  14. 14.What is the value of the digit 8 in 89.753? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  15. 15.8.25 + 6.6 = ? (a) 8.91 (b) 14.95 (c) 14.75 (d) 14.85
  16. 16.9.24 + 5.5 = ? (a) 9.79 (b) 14.84 (c) 14.74 (d) 14.64
  17. 17.9.77 + 9.2 = ? (a) 18.97 (b) 19.07 (c) 10.69 (d) 18.87
  18. 18.Which is the greatest: 0.28, 0.182, 0.094, 0.2? (a) 0.28 (b) 0.182 (c) 0.094 (d) 0.2
  19. 19.4.23 + 1.2 = ? (a) 5.33 (b) 4.35 (c) 5.43 (d) 5.53
  20. 20.Which is the greatest: 0.516, 0.6, 0.029, 0.61? (a) 0.516 (b) 0.6 (c) 0.029 (d) 0.61
  21. 21.3.51 + 8.5 = ? (a) 12.11 (b) 4.36 (c) 11.91 (d) 12.01
  22. 22.Which is the greatest: 0.132, 0.2, 0.25, 0.084? (a) 0.132 (b) 0.2 (c) 0.25 (d) 0.084
  23. 23.What is the value of the digit 4 in 45.782? (a) 4 (b) 0.04 (c) 0.4 (d) 40
  24. 24.Which is the greatest: 0.531, 0.6, 0.053, 0.65? (a) 0.531 (b) 0.6 (c) 0.053 (d) 0.65
  25. 25.What is the value of the digit 1 in 19.375? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  26. 26.What is the value of the digit 1 in 86.137? (a) 0.001 (b) 1 (c) 0.01 (d) 0.1
  27. 27.4.25 + 4.1 = ? (a) 8.35 (b) 4.66 (c) 8.45 (d) 8.25
  28. 28.Which is the greatest: 0.772, 0.86, 0.062, 0.8? (a) 0.772 (b) 0.86 (c) 0.062 (d) 0.8
  29. 29.Which is the smallest: 0.81, 0.757, 0.8, 0.064? (a) 0.81 (b) 0.757 (c) 0.8 (d) 0.064
  30. 30.3.78 + 2.2 = ? (a) 6.08 (b) 5.98 (c) 4 (d) 5.88
  31. 31.Which is the smallest: 0.599, 0.61, 0.071, 0.6? (a) 0.599 (b) 0.61 (c) 0.071 (d) 0.6
  32. 32.7.85 + 7.6 = ? (a) 15.55 (b) 15.35 (c) 8.61 (d) 15.45
  33. 33.6.19 + 5.8 = ? (a) 11.99 (b) 11.89 (c) 6.77 (d) 12.09
  34. 34.What is the value of the digit 4 in 17.284? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  35. 35.Which is the smallest: 0.471, 0.014, 0.59, 0.5? (a) 0.471 (b) 0.014 (c) 0.59 (d) 0.5
  36. 36.8.24 + 2.8 = ? (a) 11.14 (b) 8.52 (c) 11.04 (d) 10.94
  37. 37.What is the value of the digit 6 in 63.729? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  38. 38.7.02 + 7.5 = ? (a) 14.62 (b) 14.52 (c) 7.77 (d) 14.42
  39. 39.9.15 + 4.1 = ? (a) 9.56 (b) 13.25 (c) 13.35 (d) 13.15
  40. 40.2.97 + 2.1 = ? (a) 4.97 (b) 5.17 (c) 5.07 (d) 3.18

Answer key

  1. 0.018
  2. 7.28
  3. 40
  4. 9.86
  5. 0.055
  6. 0.2
  7. 1
  8. 7
  9. 4.17
  10. 0.5
  11. 0.54
  12. 0.7
  13. 0.69
  14. 80
  15. 14.85
  16. 14.74
  17. 18.97
  18. 0.28
  19. 5.43
  20. 0.61
  21. 12.01
  22. 0.25
  23. 40
  24. 0.65
  25. 10
  26. 0.1
  27. 8.35
  28. 0.86
  29. 0.064
  30. 5.98
  31. 0.071
  32. 15.45
  33. 11.99
  34. 0.004
  35. 0.014
  36. 11.04
  37. 60
  38. 14.52
  39. 13.25
  40. 5.07

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