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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 182 · 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 6 in 86.259? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  2. 2.5.54 + 1.7 = ? (a) 5.71 (b) 7.14 (c) 7.34 (d) 7.24
  3. 3.What is the value of the digit 9 in 23.589? (a) 0.09 (b) 0.9 (c) 9 (d) 0.009
  4. 4.6.05 + 1.9 = ? (a) 7.85 (b) 8.05 (c) 7.95 (d) 6.24
  5. 5.What is the value of the digit 8 in 81.469? (a) 0.08 (b) 0.8 (c) 80 (d) 8
  6. 6.What is the value of the digit 7 in 72.958? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  7. 7.4.81 + 9.7 = ? (a) 14.51 (b) 14.41 (c) 5.78 (d) 14.61
  8. 8.What is the value of the digit 1 in 25.183? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  9. 9.Which is the smallest: 0.733, 0.89, 0.051, 0.8? (a) 0.733 (b) 0.89 (c) 0.051 (d) 0.8
  10. 10.1.53 + 4.1 = ? (a) 1.94 (b) 5.73 (c) 5.63 (d) 5.53
  11. 11.What is the value of the digit 1 in 87.451? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  12. 12.What is the value of the digit 1 in 15.832? (a) 1 (b) 0.01 (c) 0.1 (d) 10
  13. 13.4.37 + 8.1 = ? (a) 12.37 (b) 12.47 (c) 12.57 (d) 5.18
  14. 14.What is the value of the digit 3 in 36.142? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  15. 15.6.83 + 3.1 = ? (a) 7.14 (b) 9.93 (c) 10.03 (d) 9.83
  16. 16.4.35 + 4.7 = ? (a) 8.95 (b) 9.05 (c) 4.82 (d) 9.15
  17. 17.What is the value of the digit 2 in 63.251? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  18. 18.Which is the smallest: 0.043, 0.71, 0.7, 0.634? (a) 0.043 (b) 0.71 (c) 0.7 (d) 0.634
  19. 19.What is the value of the digit 9 in 84.917? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  20. 20.6.35 + 9.4 = ? (a) 15.75 (b) 15.85 (c) 7.29 (d) 15.65
  21. 21.8.25 + 8.7 = ? (a) 16.95 (b) 16.85 (c) 9.12 (d) 17.05
  22. 22.5.29 + 3.5 = ? (a) 8.69 (b) 8.79 (c) 5.64 (d) 8.89
  23. 23.Which is the smallest: 0.072, 0.4, 0.41, 0.399? (a) 0.072 (b) 0.4 (c) 0.41 (d) 0.399
  24. 24.What is the value of the digit 4 in 23.546? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  25. 25.Which is the smallest: 0.5, 0.478, 0.014, 0.54? (a) 0.5 (b) 0.478 (c) 0.014 (d) 0.54
  26. 26.3.59 + 5.8 = ? (a) 9.49 (b) 4.17 (c) 9.29 (d) 9.39
  27. 27.1.64 + 9.9 = ? (a) 11.44 (b) 11.54 (c) 11.64 (d) 2.63
  28. 28.What is the value of the digit 8 in 58.967? (a) 0.8 (b) 0.08 (c) 80 (d) 8
  29. 29.What is the value of the digit 5 in 37.865? (a) 0.05 (b) 5 (c) 0.5 (d) 0.005
  30. 30.6.73 + 9.3 = ? (a) 7.66 (b) 15.93 (c) 16.13 (d) 16.03
  31. 31.6.98 + 5.9 = ? (a) 12.78 (b) 12.88 (c) 12.98 (d) 7.57
  32. 32.Which is the smallest: 0.48, 0.342, 0.027, 0.4? (a) 0.48 (b) 0.342 (c) 0.027 (d) 0.4
  33. 33.6.77 + 8.7 = ? (a) 15.37 (b) 15.47 (c) 15.57 (d) 7.64
  34. 34.7.51 + 5.8 = ? (a) 13.41 (b) 13.31 (c) 8.09 (d) 13.21
  35. 35.What is the value of the digit 6 in 26.735? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  36. 36.What is the value of the digit 5 in 38.215? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  37. 37.6.02 + 2.6 = ? (a) 8.52 (b) 6.28 (c) 8.72 (d) 8.62
  38. 38.What is the value of the digit 1 in 94.216? (a) 0.1 (b) 0.001 (c) 0.01 (d) 1
  39. 39.What is the value of the digit 6 in 26.579? (a) 0.6 (b) 6 (c) 60 (d) 0.06
  40. 40.3.33 + 9.1 = ? (a) 12.53 (b) 12.33 (c) 4.24 (d) 12.43

Answer key

  1. 6
  2. 7.24
  3. 0.009
  4. 7.95
  5. 80
  6. 70
  7. 14.51
  8. 0.1
  9. 0.051
  10. 5.63
  11. 0.001
  12. 10
  13. 12.47
  14. 30
  15. 9.93
  16. 9.05
  17. 0.2
  18. 0.043
  19. 0.9
  20. 15.75
  21. 16.95
  22. 8.79
  23. 0.072
  24. 0.04
  25. 0.014
  26. 9.39
  27. 11.54
  28. 8
  29. 0.005
  30. 16.03
  31. 12.88
  32. 0.027
  33. 15.47
  34. 13.31
  35. 6
  36. 0.005
  37. 8.62
  38. 0.01
  39. 6
  40. 12.43

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