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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 115 · 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. 1.5.84 + 6.2 = ? (a) 6.46 (b) 11.94 (c) 12.14 (d) 12.04
  2. 2.What is the value of the digit 3 in 36.527? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  3. 3.What is the value of the digit 8 in 64.538? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  4. 4.Which is the greatest: 0.061, 0.6, 0.532, 0.68? (a) 0.061 (b) 0.6 (c) 0.532 (d) 0.68
  5. 5.9.44 + 4.5 = ? (a) 13.94 (b) 14.04 (c) 13.84 (d) 9.89
  6. 6.What is the value of the digit 4 in 43.175? (a) 40 (b) 4 (c) 0.4 (d) 0.04
  7. 7.9.92 + 7.3 = ? (a) 10.65 (b) 17.12 (c) 17.22 (d) 17.32
  8. 8.3.76 + 9.5 = ? (a) 13.26 (b) 4.71 (c) 13.16 (d) 13.36
  9. 9.Which is the greatest: 0.133, 0.094, 0.25, 0.2? (a) 0.133 (b) 0.094 (c) 0.25 (d) 0.2
  10. 10.What is the value of the digit 3 in 72.153? (a) 0.03 (b) 3 (c) 0.003 (d) 0.3
  11. 11.What is the value of the digit 8 in 98.537? (a) 0.8 (b) 0.08 (c) 80 (d) 8
  12. 12.8.98 + 3.1 = ? (a) 11.98 (b) 12.18 (c) 12.08 (d) 9.29
  13. 13.5.25 + 2.3 = ? (a) 5.48 (b) 7.55 (c) 7.45 (d) 7.65
  14. 14.5.23 + 7.7 = ? (a) 12.83 (b) 12.93 (c) 13.03 (d) 6
  15. 15.What is the value of the digit 8 in 63.785? (a) 0.008 (b) 0.8 (c) 0.08 (d) 8
  16. 16.What is the value of the digit 8 in 82.794? (a) 8 (b) 0.08 (c) 80 (d) 0.8
  17. 17.What is the value of the digit 6 in 69.185? (a) 0.06 (b) 0.6 (c) 60 (d) 6
  18. 18.7.64 + 5.8 = ? (a) 13.54 (b) 13.34 (c) 8.22 (d) 13.44
  19. 19.Which is the smallest: 0.47, 0.4, 0.343, 0.013? (a) 0.47 (b) 0.4 (c) 0.343 (d) 0.013
  20. 20.Which is the greatest: 0.563, 0.62, 0.052, 0.6? (a) 0.563 (b) 0.62 (c) 0.052 (d) 0.6
  21. 21.4.89 + 2.4 = ? (a) 7.29 (b) 7.39 (c) 7.19 (d) 5.13
  22. 22.Which is the greatest: 0.53, 0.5, 0.092, 0.495? (a) 0.53 (b) 0.5 (c) 0.092 (d) 0.495
  23. 23.3.24 + 2.2 = ? (a) 3.46 (b) 5.44 (c) 5.54 (d) 5.34
  24. 24.3.89 + 2.2 = ? (a) 4.11 (b) 6.19 (c) 5.99 (d) 6.09
  25. 25.Which is the smallest: 0.7, 0.74, 0.028, 0.666? (a) 0.7 (b) 0.74 (c) 0.028 (d) 0.666
  26. 26.3.56 + 8.1 = ? (a) 11.76 (b) 11.66 (c) 11.56 (d) 4.37
  27. 27.What is the value of the digit 9 in 89.134? (a) 0.09 (b) 0.9 (c) 9 (d) 90
  28. 28.Which is the smallest: 0.7, 0.73, 0.677, 0.037? (a) 0.7 (b) 0.73 (c) 0.677 (d) 0.037
  29. 29.What is the value of the digit 3 in 78.234? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  30. 30.Which is the smallest: 0.764, 0.8, 0.093, 0.81? (a) 0.764 (b) 0.8 (c) 0.093 (d) 0.81
  31. 31.3.11 + 3.9 = ? (a) 7.11 (b) 6.91 (c) 3.5 (d) 7.01
  32. 32.4.98 + 5.8 = ? (a) 5.56 (b) 10.68 (c) 10.88 (d) 10.78
  33. 33.7.48 + 5.8 = ? (a) 13.18 (b) 13.28 (c) 13.38 (d) 8.06
  34. 34.What is the value of the digit 1 in 27.691? (a) 1 (b) 0.01 (c) 0.1 (d) 0.001
  35. 35.What is the value of the digit 6 in 16.389? (a) 0.6 (b) 60 (c) 6 (d) 0.06
  36. 36.3.71 + 7.6 = ? (a) 11.31 (b) 11.41 (c) 11.21 (d) 4.47
  37. 37.What is the value of the digit 5 in 37.125? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  38. 38.Which is the greatest: 0.34, 0.265, 0.3, 0.092? (a) 0.34 (b) 0.265 (c) 0.3 (d) 0.092
  39. 39.Which is the smallest: 0.043, 0.45, 0.4, 0.343? (a) 0.043 (b) 0.45 (c) 0.4 (d) 0.343
  40. 40.What is the value of the digit 1 in 13.972? (a) 1 (b) 0.1 (c) 10 (d) 0.01

Answer key

  1. 12.04
  2. 30
  3. 0.008
  4. 0.68
  5. 13.94
  6. 40
  7. 17.22
  8. 13.26
  9. 0.25
  10. 0.003
  11. 8
  12. 12.08
  13. 7.55
  14. 12.93
  15. 0.08
  16. 80
  17. 60
  18. 13.44
  19. 0.013
  20. 0.62
  21. 7.29
  22. 0.53
  23. 5.44
  24. 6.09
  25. 0.028
  26. 11.66
  27. 9
  28. 0.037
  29. 0.03
  30. 0.093
  31. 7.01
  32. 10.78
  33. 13.28
  34. 0.001
  35. 6
  36. 11.31
  37. 0.005
  38. 0.34
  39. 0.043
  40. 10

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