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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 607 · 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 4 in 41.658? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  2. 2.What is the value of the digit 1 in 51.789? (a) 0.01 (b) 10 (c) 0.1 (d) 1
  3. 3.4.19 + 4.3 = ? (a) 8.49 (b) 4.62 (c) 8.59 (d) 8.39
  4. 4.Which is the smallest: 0.689, 0.053, 0.76, 0.7? (a) 0.689 (b) 0.053 (c) 0.76 (d) 0.7
  5. 5.What is the value of the digit 1 in 68.541? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  6. 6.4.25 + 7.4 = ? (a) 4.99 (b) 11.75 (c) 11.65 (d) 11.55
  7. 7.Which is the smallest: 0.6, 0.584, 0.62, 0.098? (a) 0.6 (b) 0.584 (c) 0.62 (d) 0.098
  8. 8.What is the value of the digit 2 in 65.821? (a) 0.2 (b) 2 (c) 0.02 (d) 0.002
  9. 9.Which is the greatest: 0.447, 0.55, 0.022, 0.5? (a) 0.447 (b) 0.55 (c) 0.022 (d) 0.5
  10. 10.What is the value of the digit 9 in 97.254? (a) 0.09 (b) 0.9 (c) 90 (d) 9
  11. 11.What is the value of the digit 6 in 43.826? (a) 0.6 (b) 0.06 (c) 0.006 (d) 6
  12. 12.5.75 + 4.3 = ? (a) 6.18 (b) 10.15 (c) 9.95 (d) 10.05
  13. 13.Which is the greatest: 0.37, 0.3, 0.214, 0.087? (a) 0.37 (b) 0.3 (c) 0.214 (d) 0.087
  14. 14.2.49 + 3.7 = ? (a) 6.29 (b) 2.86 (c) 6.09 (d) 6.19
  15. 15.8.01 + 2.3 = ? (a) 10.31 (b) 10.41 (c) 8.24 (d) 10.21
  16. 16.6.82 + 1.1 = ? (a) 8.02 (b) 6.93 (c) 7.82 (d) 7.92
  17. 17.Which is the smallest: 0.3, 0.31, 0.099, 0.288? (a) 0.3 (b) 0.31 (c) 0.099 (d) 0.288
  18. 18.What is the value of the digit 6 in 98.361? (a) 0.6 (b) 0.06 (c) 6 (d) 0.006
  19. 19.Which is the smallest: 0.39, 0.288, 0.014, 0.3? (a) 0.39 (b) 0.288 (c) 0.014 (d) 0.3
  20. 20.Which is the greatest: 0.077, 0.56, 0.424, 0.5? (a) 0.077 (b) 0.56 (c) 0.424 (d) 0.5
  21. 21.What is the value of the digit 9 in 75.298? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  22. 22.9.36 + 2.7 = ? (a) 11.96 (b) 9.63 (c) 12.06 (d) 12.16
  23. 23.Which is the greatest: 0.016, 0.84, 0.8, 0.783? (a) 0.016 (b) 0.84 (c) 0.8 (d) 0.783
  24. 24.Which is the greatest: 0.417, 0.57, 0.037, 0.5? (a) 0.417 (b) 0.57 (c) 0.037 (d) 0.5
  25. 25.5.96 + 9.2 = ? (a) 15.06 (b) 15.26 (c) 15.16 (d) 6.88
  26. 26.2.65 + 9.3 = ? (a) 12.05 (b) 3.58 (c) 11.85 (d) 11.95
  27. 27.2.59 + 9.9 = ? (a) 12.39 (b) 12.49 (c) 12.59 (d) 3.58
  28. 28.8.05 + 2.5 = ? (a) 10.65 (b) 8.3 (c) 10.55 (d) 10.45
  29. 29.Which is the greatest: 0.72, 0.7, 0.028, 0.691? (a) 0.72 (b) 0.7 (c) 0.028 (d) 0.691
  30. 30.What is the value of the digit 8 in 24.896? (a) 0.08 (b) 8 (c) 0.8 (d) 0.008
  31. 31.2.47 + 3.1 = ? (a) 5.67 (b) 5.57 (c) 2.78 (d) 5.47
  32. 32.Which is the greatest: 0.221, 0.067, 0.3, 0.33? (a) 0.221 (b) 0.067 (c) 0.3 (d) 0.33
  33. 33.8.24 + 4.7 = ? (a) 8.71 (b) 12.84 (c) 12.94 (d) 13.04
  34. 34.Which is the smallest: 0.282, 0.33, 0.3, 0.036? (a) 0.282 (b) 0.33 (c) 0.3 (d) 0.036
  35. 35.3.22 + 2.6 = ? (a) 3.48 (b) 5.82 (c) 5.72 (d) 5.92
  36. 36.Which is the smallest: 0.3, 0.056, 0.212, 0.36? (a) 0.3 (b) 0.056 (c) 0.212 (d) 0.36
  37. 37.Which is the greatest: 0.146, 0.083, 0.29, 0.2? (a) 0.146 (b) 0.083 (c) 0.29 (d) 0.2
  38. 38.Which is the smallest: 0.064, 0.419, 0.59, 0.5? (a) 0.064 (b) 0.419 (c) 0.59 (d) 0.5
  39. 39.What is the value of the digit 7 in 31.457? (a) 0.07 (b) 0.7 (c) 0.007 (d) 7
  40. 40.1.33 + 3.3 = ? (a) 4.73 (b) 4.63 (c) 4.53 (d) 1.66

Answer key

  1. 40
  2. 1
  3. 8.49
  4. 0.053
  5. 0.001
  6. 11.65
  7. 0.098
  8. 0.02
  9. 0.55
  10. 90
  11. 0.006
  12. 10.05
  13. 0.37
  14. 6.19
  15. 10.31
  16. 7.92
  17. 0.099
  18. 0.06
  19. 0.014
  20. 0.56
  21. 0.09
  22. 12.06
  23. 0.84
  24. 0.57
  25. 15.16
  26. 11.95
  27. 12.49
  28. 10.55
  29. 0.72
  30. 0.8
  31. 5.57
  32. 0.33
  33. 12.94
  34. 0.036
  35. 5.82
  36. 0.056
  37. 0.29
  38. 0.064
  39. 0.007
  40. 4.63

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