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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 542 · 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 7 in 58.647? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  2. 2.3.12 + 1.9 = ? (a) 5.02 (b) 4.92 (c) 5.12 (d) 3.31
  3. 3.7.15 + 1.4 = ? (a) 8.45 (b) 8.55 (c) 7.29 (d) 8.65
  4. 4.What is the value of the digit 8 in 27.891? (a) 0.008 (b) 8 (c) 0.08 (d) 0.8
  5. 5.4.52 + 9.4 = ? (a) 14.02 (b) 5.46 (c) 13.82 (d) 13.92
  6. 6.5.96 + 9.4 = ? (a) 6.9 (b) 15.46 (c) 15.26 (d) 15.36
  7. 7.Which is the smallest: 0.095, 0.752, 0.8, 0.89? (a) 0.095 (b) 0.752 (c) 0.8 (d) 0.89
  8. 8.What is the value of the digit 5 in 85.932? (a) 50 (b) 0.05 (c) 0.5 (d) 5
  9. 9.1.57 + 2.5 = ? (a) 4.07 (b) 4.17 (c) 3.97 (d) 1.82
  10. 10.6.38 + 6.2 = ? (a) 12.68 (b) 12.48 (c) 12.58 (d) 7
  11. 11.Which is the smallest: 0.035, 0.52, 0.5, 0.429? (a) 0.035 (b) 0.52 (c) 0.5 (d) 0.429
  12. 12.2.23 + 8.9 = ? (a) 11.03 (b) 11.23 (c) 3.12 (d) 11.13
  13. 13.Which is the smallest: 0.253, 0.075, 0.31, 0.3? (a) 0.253 (b) 0.075 (c) 0.31 (d) 0.3
  14. 14.Which is the greatest: 0.277, 0.34, 0.075, 0.3? (a) 0.277 (b) 0.34 (c) 0.075 (d) 0.3
  15. 15.Which is the greatest: 0.587, 0.018, 0.69, 0.6? (a) 0.587 (b) 0.018 (c) 0.69 (d) 0.6
  16. 16.1.17 + 7.4 = ? (a) 8.47 (b) 8.67 (c) 1.91 (d) 8.57
  17. 17.Which is the smallest: 0.356, 0.42, 0.4, 0.066? (a) 0.356 (b) 0.42 (c) 0.4 (d) 0.066
  18. 18.What is the value of the digit 9 in 41.729? (a) 0.09 (b) 0.009 (c) 9 (d) 0.9
  19. 19.9.65 + 5.4 = ? (a) 15.05 (b) 15.15 (c) 10.19 (d) 14.95
  20. 20.3.81 + 2.2 = ? (a) 6.01 (b) 6.11 (c) 4.03 (d) 5.91
  21. 21.Which is the smallest: 0.018, 0.4, 0.366, 0.44? (a) 0.018 (b) 0.4 (c) 0.366 (d) 0.44
  22. 22.Which is the greatest: 0.028, 0.71, 0.657, 0.7? (a) 0.028 (b) 0.71 (c) 0.657 (d) 0.7
  23. 23.Which is the greatest: 0.51, 0.011, 0.422, 0.5? (a) 0.51 (b) 0.011 (c) 0.422 (d) 0.5
  24. 24.9.15 + 7.4 = ? (a) 16.65 (b) 16.45 (c) 9.89 (d) 16.55
  25. 25.9.01 + 5.7 = ? (a) 9.58 (b) 14.81 (c) 14.61 (d) 14.71
  26. 26.5.65 + 2.9 = ? (a) 5.94 (b) 8.55 (c) 8.65 (d) 8.45
  27. 27.What is the value of the digit 6 in 17.896? (a) 0.006 (b) 0.6 (c) 0.06 (d) 6
  28. 28.7.58 + 1.2 = ? (a) 8.68 (b) 7.7 (c) 8.78 (d) 8.88
  29. 29.Which is the smallest: 0.547, 0.026, 0.66, 0.6? (a) 0.547 (b) 0.026 (c) 0.66 (d) 0.6
  30. 30.1.84 + 1.2 = ? (a) 3.14 (b) 3.04 (c) 1.96 (d) 2.94
  31. 31.2.05 + 4.1 = ? (a) 6.25 (b) 6.15 (c) 6.05 (d) 2.46
  32. 32.8.06 + 2.1 = ? (a) 10.26 (b) 10.06 (c) 10.16 (d) 8.27
  33. 33.What is the value of the digit 7 in 71.895? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  34. 34.Which is the greatest: 0.018, 0.38, 0.287, 0.3? (a) 0.018 (b) 0.38 (c) 0.287 (d) 0.3
  35. 35.What is the value of the digit 8 in 87.695? (a) 8 (b) 0.08 (c) 0.8 (d) 80
  36. 36.What is the value of the digit 9 in 36.794? (a) 0.9 (b) 0.09 (c) 9 (d) 0.009
  37. 37.Which is the greatest: 0.7, 0.72, 0.647, 0.053? (a) 0.7 (b) 0.72 (c) 0.647 (d) 0.053
  38. 38.Which is the greatest: 0.21, 0.077, 0.2, 0.169? (a) 0.21 (b) 0.077 (c) 0.2 (d) 0.169
  39. 39.What is the value of the digit 9 in 53.921? (a) 0.09 (b) 0.009 (c) 9 (d) 0.9
  40. 40.What is the value of the digit 5 in 28.567? (a) 5 (b) 0.05 (c) 0.005 (d) 0.5

Answer key

  1. 0.007
  2. 5.02
  3. 8.55
  4. 0.8
  5. 13.92
  6. 15.36
  7. 0.095
  8. 5
  9. 4.07
  10. 12.58
  11. 0.035
  12. 11.13
  13. 0.075
  14. 0.34
  15. 0.69
  16. 8.57
  17. 0.066
  18. 0.009
  19. 15.05
  20. 6.01
  21. 0.018
  22. 0.71
  23. 0.51
  24. 16.55
  25. 14.71
  26. 8.55
  27. 0.006
  28. 8.78
  29. 0.026
  30. 3.04
  31. 6.15
  32. 10.16
  33. 70
  34. 0.38
  35. 80
  36. 0.09
  37. 0.72
  38. 0.21
  39. 0.9
  40. 0.5

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