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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 411 · 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 71.294? (a) 0.4 (b) 0.04 (c) 0.004 (d) 4
  2. 2.What is the value of the digit 1 in 21.543? (a) 1 (b) 0.01 (c) 10 (d) 0.1
  3. 3.6.96 + 1.1 = ? (a) 8.16 (b) 7.07 (c) 7.96 (d) 8.06
  4. 4.6.02 + 2.8 = ? (a) 6.3 (b) 8.92 (c) 8.72 (d) 8.82
  5. 5.Which is the smallest: 0.84, 0.8, 0.014, 0.724? (a) 0.84 (b) 0.8 (c) 0.014 (d) 0.724
  6. 6.7.41 + 4.4 = ? (a) 11.71 (b) 11.91 (c) 7.85 (d) 11.81
  7. 7.Which is the smallest: 0.65, 0.574, 0.6, 0.079? (a) 0.65 (b) 0.574 (c) 0.6 (d) 0.079
  8. 8.1.85 + 3.7 = ? (a) 5.45 (b) 2.22 (c) 5.65 (d) 5.55
  9. 9.2.84 + 1.7 = ? (a) 4.54 (b) 3.01 (c) 4.64 (d) 4.44
  10. 10.Which is the greatest: 0.71, 0.633, 0.7, 0.045? (a) 0.71 (b) 0.633 (c) 0.7 (d) 0.045
  11. 11.2.87 + 2.8 = ? (a) 5.67 (b) 5.57 (c) 3.15 (d) 5.77
  12. 12.5.78 + 9.5 = ? (a) 15.18 (b) 6.73 (c) 15.38 (d) 15.28
  13. 13.Which is the smallest: 0.4, 0.46, 0.059, 0.325? (a) 0.4 (b) 0.46 (c) 0.059 (d) 0.325
  14. 14.5.22 + 7.4 = ? (a) 5.96 (b) 12.52 (c) 12.72 (d) 12.62
  15. 15.6.97 + 3.4 = ? (a) 10.37 (b) 10.27 (c) 10.47 (d) 7.31
  16. 16.What is the value of the digit 8 in 14.258? (a) 0.08 (b) 0.8 (c) 8 (d) 0.008
  17. 17.3.59 + 1.3 = ? (a) 4.99 (b) 3.72 (c) 4.79 (d) 4.89
  18. 18.9.07 + 7.8 = ? (a) 9.85 (b) 16.87 (c) 16.97 (d) 16.77
  19. 19.What is the value of the digit 4 in 96.147? (a) 0.4 (b) 4 (c) 0.004 (d) 0.04
  20. 20.Which is the greatest: 0.157, 0.026, 0.2, 0.29? (a) 0.157 (b) 0.026 (c) 0.2 (d) 0.29
  21. 21.Which is the smallest: 0.012, 0.62, 0.524, 0.6? (a) 0.012 (b) 0.62 (c) 0.524 (d) 0.6
  22. 22.7.37 + 5.1 = ? (a) 12.47 (b) 7.88 (c) 12.37 (d) 12.57
  23. 23.What is the value of the digit 5 in 87.513? (a) 5 (b) 0.05 (c) 0.005 (d) 0.5
  24. 24.Which is the greatest: 0.64, 0.071, 0.6, 0.533? (a) 0.64 (b) 0.071 (c) 0.6 (d) 0.533
  25. 25.7.67 + 9.2 = ? (a) 16.97 (b) 16.77 (c) 16.87 (d) 8.59
  26. 26.2.32 + 3.6 = ? (a) 5.82 (b) 6.02 (c) 2.68 (d) 5.92
  27. 27.9.33 + 5.4 = ? (a) 9.87 (b) 14.63 (c) 14.83 (d) 14.73
  28. 28.What is the value of the digit 1 in 26.159? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  29. 29.1.91 + 7.3 = ? (a) 9.31 (b) 9.11 (c) 2.64 (d) 9.21
  30. 30.4.41 + 6.8 = ? (a) 5.09 (b) 11.11 (c) 11.21 (d) 11.31
  31. 31.What is the value of the digit 3 in 83.972? (a) 0.03 (b) 30 (c) 0.3 (d) 3
  32. 32.5.21 + 2.9 = ? (a) 5.5 (b) 8.01 (c) 8.11 (d) 8.21
  33. 33.What is the value of the digit 2 in 68.723? (a) 0.002 (b) 0.02 (c) 0.2 (d) 2
  34. 34.Which is the greatest: 0.2, 0.037, 0.121, 0.29? (a) 0.2 (b) 0.037 (c) 0.121 (d) 0.29
  35. 35.Which is the smallest: 0.053, 0.2, 0.22, 0.184? (a) 0.053 (b) 0.2 (c) 0.22 (d) 0.184
  36. 36.What is the value of the digit 7 in 12.754? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  37. 37.Which is the greatest: 0.47, 0.4, 0.028, 0.374? (a) 0.47 (b) 0.4 (c) 0.028 (d) 0.374
  38. 38.2.84 + 7.6 = ? (a) 10.34 (b) 10.44 (c) 3.6 (d) 10.54
  39. 39.What is the value of the digit 1 in 95.341? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  40. 40.1.55 + 9.7 = ? (a) 11.35 (b) 11.15 (c) 11.25 (d) 2.52

Answer key

  1. 0.004
  2. 1
  3. 8.06
  4. 8.82
  5. 0.014
  6. 11.81
  7. 0.079
  8. 5.55
  9. 4.54
  10. 0.71
  11. 5.67
  12. 15.28
  13. 0.059
  14. 12.62
  15. 10.37
  16. 0.008
  17. 4.89
  18. 16.87
  19. 0.04
  20. 0.29
  21. 0.012
  22. 12.47
  23. 0.5
  24. 0.64
  25. 16.87
  26. 5.92
  27. 14.73
  28. 0.1
  29. 9.21
  30. 11.21
  31. 3
  32. 8.11
  33. 0.02
  34. 0.29
  35. 0.053
  36. 0.7
  37. 0.47
  38. 10.44
  39. 0.001
  40. 11.25

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