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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 533 · 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 75.241? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  2. 2.What is the value of the digit 6 in 42.675? (a) 0.6 (b) 0.06 (c) 6 (d) 0.006
  3. 3.Which is the smallest: 0.221, 0.33, 0.068, 0.3? (a) 0.221 (b) 0.33 (c) 0.068 (d) 0.3
  4. 4.6.57 + 9.5 = ? (a) 7.52 (b) 16.07 (c) 15.97 (d) 16.17
  5. 5.Which is the greatest: 0.595, 0.064, 0.68, 0.6? (a) 0.595 (b) 0.064 (c) 0.68 (d) 0.6
  6. 6.What is the value of the digit 9 in 53.769? (a) 9 (b) 0.09 (c) 0.009 (d) 0.9
  7. 7.What is the value of the digit 7 in 13.597? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  8. 8.9.38 + 1.9 = ? (a) 11.18 (b) 11.38 (c) 11.28 (d) 9.57
  9. 9.What is the value of the digit 2 in 23.149? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  10. 10.What is the value of the digit 1 in 14.382? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  11. 11.What is the value of the digit 6 in 62.135? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  12. 12.What is the value of the digit 3 in 84.193? (a) 0.3 (b) 0.003 (c) 3 (d) 0.03
  13. 13.3.65 + 1.2 = ? (a) 3.77 (b) 4.85 (c) 4.75 (d) 4.95
  14. 14.9.77 + 7.4 = ? (a) 17.17 (b) 17.27 (c) 17.07 (d) 10.51
  15. 15.Which is the greatest: 0.24, 0.085, 0.2, 0.141? (a) 0.24 (b) 0.085 (c) 0.2 (d) 0.141
  16. 16.Which is the smallest: 0.024, 0.62, 0.529, 0.6? (a) 0.024 (b) 0.62 (c) 0.529 (d) 0.6
  17. 17.3.72 + 4.5 = ? (a) 8.32 (b) 8.22 (c) 8.12 (d) 4.17
  18. 18.What is the value of the digit 1 in 52.341? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  19. 19.What is the value of the digit 1 in 31.865? (a) 0.01 (b) 1 (c) 0.1 (d) 10
  20. 20.Which is the greatest: 0.047, 0.513, 0.6, 0.62? (a) 0.047 (b) 0.513 (c) 0.6 (d) 0.62
  21. 21.8.71 + 7.6 = ? (a) 16.41 (b) 16.21 (c) 9.47 (d) 16.31
  22. 22.Which is the smallest: 0.268, 0.077, 0.3, 0.32? (a) 0.268 (b) 0.077 (c) 0.3 (d) 0.32
  23. 23.8.38 + 8.5 = ? (a) 16.78 (b) 9.23 (c) 16.98 (d) 16.88
  24. 24.What is the value of the digit 3 in 35.786? (a) 30 (b) 0.03 (c) 0.3 (d) 3
  25. 25.2.66 + 8.1 = ? (a) 3.47 (b) 10.76 (c) 10.66 (d) 10.86
  26. 26.1.68 + 9.1 = ? (a) 10.68 (b) 10.88 (c) 10.78 (d) 2.59
  27. 27.Which is the greatest: 0.71, 0.641, 0.7, 0.017? (a) 0.71 (b) 0.641 (c) 0.7 (d) 0.017
  28. 28.3.15 + 1.7 = ? (a) 4.75 (b) 3.32 (c) 4.95 (d) 4.85
  29. 29.Which is the smallest: 0.065, 0.42, 0.4, 0.328? (a) 0.065 (b) 0.42 (c) 0.4 (d) 0.328
  30. 30.9.64 + 6.6 = ? (a) 16.34 (b) 16.14 (c) 10.3 (d) 16.24
  31. 31.9.88 + 2.1 = ? (a) 11.98 (b) 11.88 (c) 10.09 (d) 12.08
  32. 32.1.01 + 2.2 = ? (a) 3.31 (b) 1.23 (c) 3.21 (d) 3.11
  33. 33.5.33 + 1.5 = ? (a) 6.73 (b) 6.83 (c) 6.93 (d) 5.48
  34. 34.5.26 + 3.1 = ? (a) 8.26 (b) 5.57 (c) 8.46 (d) 8.36
  35. 35.Which is the greatest: 0.082, 0.228, 0.3, 0.32? (a) 0.082 (b) 0.228 (c) 0.3 (d) 0.32
  36. 36.Which is the greatest: 0.082, 0.5, 0.437, 0.52? (a) 0.082 (b) 0.5 (c) 0.437 (d) 0.52
  37. 37.What is the value of the digit 1 in 14.386? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  38. 38.What is the value of the digit 3 in 38.925? (a) 3 (b) 0.03 (c) 0.3 (d) 30
  39. 39.1.99 + 4.2 = ? (a) 6.09 (b) 6.29 (c) 2.41 (d) 6.19
  40. 40.What is the value of the digit 6 in 19.675? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6

Answer key

  1. 0.2
  2. 0.6
  3. 0.068
  4. 16.07
  5. 0.68
  6. 0.009
  7. 0.007
  8. 11.28
  9. 20
  10. 10
  11. 60
  12. 0.003
  13. 4.85
  14. 17.17
  15. 0.24
  16. 0.024
  17. 8.22
  18. 0.001
  19. 1
  20. 0.62
  21. 16.31
  22. 0.077
  23. 16.88
  24. 30
  25. 10.76
  26. 10.78
  27. 0.71
  28. 4.85
  29. 0.065
  30. 16.24
  31. 11.98
  32. 3.21
  33. 6.83
  34. 8.36
  35. 0.32
  36. 0.52
  37. 10
  38. 30
  39. 6.19
  40. 0.6

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