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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 973 · 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. 1.6.79 + 1.6 = ? (a) 8.29 (b) 6.95 (c) 8.49 (d) 8.39
  2. 2.Which is the greatest: 0.016, 0.799, 0.88, 0.8? (a) 0.016 (b) 0.799 (c) 0.88 (d) 0.8
  3. 3.Which is the smallest: 0.338, 0.069, 0.45, 0.4? (a) 0.338 (b) 0.069 (c) 0.45 (d) 0.4
  4. 4.Which is the greatest: 0.116, 0.24, 0.2, 0.086? (a) 0.116 (b) 0.24 (c) 0.2 (d) 0.086
  5. 5.2.23 + 5.8 = ? (a) 2.81 (b) 8.13 (c) 8.03 (d) 7.93
  6. 6.2.42 + 4.2 = ? (a) 6.72 (b) 6.62 (c) 6.52 (d) 2.84
  7. 7.What is the value of the digit 7 in 53.742? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  8. 8.What is the value of the digit 6 in 52.946? (a) 0.6 (b) 0.006 (c) 6 (d) 0.06
  9. 9.What is the value of the digit 7 in 13.278? (a) 0.007 (b) 0.07 (c) 7 (d) 0.7
  10. 10.What is the value of the digit 3 in 36.291? (a) 3 (b) 30 (c) 0.3 (d) 0.03
  11. 11.What is the value of the digit 2 in 28.941? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  12. 12.What is the value of the digit 3 in 81.376? (a) 0.03 (b) 0.3 (c) 3 (d) 0.003
  13. 13.5.53 + 4.2 = ? (a) 9.63 (b) 9.73 (c) 5.95 (d) 9.83
  14. 14.What is the value of the digit 2 in 49.523? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  15. 15.6.78 + 1.6 = ? (a) 8.48 (b) 8.38 (c) 8.28 (d) 6.94
  16. 16.3.04 + 4.4 = ? (a) 7.44 (b) 3.48 (c) 7.54 (d) 7.34
  17. 17.What is the value of the digit 3 in 62.537? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  18. 18.What is the value of the digit 8 in 28.354? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  19. 19.4.35 + 8.5 = ? (a) 12.85 (b) 12.95 (c) 12.75 (d) 5.2
  20. 20.What is the value of the digit 3 in 36.895? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  21. 21.Which is the greatest: 0.267, 0.37, 0.027, 0.3? (a) 0.267 (b) 0.37 (c) 0.027 (d) 0.3
  22. 22.What is the value of the digit 3 in 82.173? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  23. 23.What is the value of the digit 9 in 95.382? (a) 0.9 (b) 90 (c) 0.09 (d) 9
  24. 24.What is the value of the digit 3 in 63.478? (a) 3 (b) 30 (c) 0.3 (d) 0.03
  25. 25.What is the value of the digit 3 in 75.136? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  26. 26.What is the value of the digit 8 in 71.568? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8
  27. 27.Which is the smallest: 0.097, 0.35, 0.248, 0.3? (a) 0.097 (b) 0.35 (c) 0.248 (d) 0.3
  28. 28.Which is the smallest: 0.4, 0.48, 0.072, 0.376? (a) 0.4 (b) 0.48 (c) 0.072 (d) 0.376
  29. 29.8.82 + 5.8 = ? (a) 14.52 (b) 14.72 (c) 9.4 (d) 14.62
  30. 30.What is the value of the digit 6 in 51.846? (a) 0.6 (b) 6 (c) 0.006 (d) 0.06
  31. 31.Which is the smallest: 0.5, 0.456, 0.011, 0.53? (a) 0.5 (b) 0.456 (c) 0.011 (d) 0.53
  32. 32.9.85 + 2.9 = ? (a) 10.14 (b) 12.75 (c) 12.65 (d) 12.85
  33. 33.Which is the smallest: 0.325, 0.4, 0.065, 0.45? (a) 0.325 (b) 0.4 (c) 0.065 (d) 0.45
  34. 34.Which is the smallest: 0.33, 0.092, 0.3, 0.286? (a) 0.33 (b) 0.092 (c) 0.3 (d) 0.286
  35. 35.Which is the greatest: 0.51, 0.081, 0.476, 0.5? (a) 0.51 (b) 0.081 (c) 0.476 (d) 0.5
  36. 36.What is the value of the digit 6 in 63.741? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  37. 37.1.21 + 2.8 = ? (a) 4.01 (b) 3.91 (c) 1.49 (d) 4.11
  38. 38.1.69 + 8.9 = ? (a) 10.69 (b) 10.59 (c) 10.49 (d) 2.58
  39. 39.9.61 + 1.7 = ? (a) 9.78 (b) 11.21 (c) 11.41 (d) 11.31
  40. 40.Which is the greatest: 0.4, 0.024, 0.369, 0.44? (a) 0.4 (b) 0.024 (c) 0.369 (d) 0.44

Answer key

  1. 8.39
  2. 0.88
  3. 0.069
  4. 0.24
  5. 8.03
  6. 6.62
  7. 0.7
  8. 0.006
  9. 0.07
  10. 30
  11. 20
  12. 0.3
  13. 9.73
  14. 0.02
  15. 8.38
  16. 7.44
  17. 0.03
  18. 8
  19. 12.85
  20. 30
  21. 0.37
  22. 0.003
  23. 90
  24. 3
  25. 0.03
  26. 0.008
  27. 0.097
  28. 0.072
  29. 14.62
  30. 0.006
  31. 0.011
  32. 12.75
  33. 0.065
  34. 0.092
  35. 0.51
  36. 60
  37. 4.01
  38. 10.59
  39. 11.31
  40. 0.44

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