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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 65 · 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 1 in 13.259? (a) 0.1 (b) 1 (c) 10 (d) 0.01
  2. 2.3.34 + 5.2 = ? (a) 8.44 (b) 8.54 (c) 3.86 (d) 8.64
  3. 3.Which is the smallest: 0.146, 0.061, 0.25, 0.2? (a) 0.146 (b) 0.061 (c) 0.25 (d) 0.2
  4. 4.6.76 + 9.2 = ? (a) 15.86 (b) 7.68 (c) 16.06 (d) 15.96
  5. 5.6.37 + 1.1 = ? (a) 7.37 (b) 7.47 (c) 7.57 (d) 6.48
  6. 6.What is the value of the digit 9 in 19.246? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  7. 7.2.02 + 8.6 = ? (a) 10.72 (b) 2.88 (c) 10.62 (d) 10.52
  8. 8.What is the value of the digit 2 in 82.319? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  9. 9.What is the value of the digit 3 in 19.342? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  10. 10.Which is the smallest: 0.75, 0.7, 0.094, 0.635? (a) 0.75 (b) 0.7 (c) 0.094 (d) 0.635
  11. 11.What is the value of the digit 7 in 79.132? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  12. 12.Which is the greatest: 0.051, 0.42, 0.4, 0.357? (a) 0.051 (b) 0.42 (c) 0.4 (d) 0.357
  13. 13.What is the value of the digit 3 in 81.354? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  14. 14.4.04 + 8.7 = ? (a) 12.84 (b) 12.64 (c) 12.74 (d) 4.91
  15. 15.1.72 + 8.2 = ? (a) 9.92 (b) 10.02 (c) 2.54 (d) 9.82
  16. 16.2.53 + 7.8 = ? (a) 3.31 (b) 10.43 (c) 10.33 (d) 10.23
  17. 17.What is the value of the digit 2 in 68.372? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  18. 18.Which is the greatest: 0.058, 0.128, 0.2, 0.22? (a) 0.058 (b) 0.128 (c) 0.2 (d) 0.22
  19. 19.What is the value of the digit 3 in 63.472? (a) 30 (b) 3 (c) 0.3 (d) 0.03
  20. 20.6.54 + 2.3 = ? (a) 8.84 (b) 6.77 (c) 8.74 (d) 8.94
  21. 21.What is the value of the digit 3 in 23.564? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  22. 22.What is the value of the digit 6 in 86.542? (a) 60 (b) 0.06 (c) 0.6 (d) 6
  23. 23.Which is the greatest: 0.014, 0.161, 0.27, 0.2? (a) 0.014 (b) 0.161 (c) 0.27 (d) 0.2
  24. 24.What is the value of the digit 3 in 31.529? (a) 0.03 (b) 3 (c) 0.3 (d) 30
  25. 25.6.86 + 3.5 = ? (a) 7.21 (b) 10.36 (c) 10.46 (d) 10.26
  26. 26.What is the value of the digit 5 in 35.487? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  27. 27.Which is the smallest: 0.44, 0.395, 0.085, 0.4? (a) 0.44 (b) 0.395 (c) 0.085 (d) 0.4
  28. 28.Which is the smallest: 0.21, 0.192, 0.068, 0.2? (a) 0.21 (b) 0.192 (c) 0.068 (d) 0.2
  29. 29.What is the value of the digit 3 in 36.589? (a) 30 (b) 0.03 (c) 0.3 (d) 3
  30. 30.2.57 + 8.1 = ? (a) 10.77 (b) 10.67 (c) 3.38 (d) 10.57
  31. 31.7.75 + 3.8 = ? (a) 11.55 (b) 8.13 (c) 11.65 (d) 11.45
  32. 32.What is the value of the digit 1 in 32.715? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  33. 33.What is the value of the digit 6 in 75.926? (a) 0.6 (b) 0.006 (c) 6 (d) 0.06
  34. 34.Which is the greatest: 0.219, 0.047, 0.38, 0.3? (a) 0.219 (b) 0.047 (c) 0.38 (d) 0.3
  35. 35.What is the value of the digit 9 in 71.459? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  36. 36.What is the value of the digit 1 in 29.361? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  37. 37.Which is the smallest: 0.342, 0.41, 0.037, 0.4? (a) 0.342 (b) 0.41 (c) 0.037 (d) 0.4
  38. 38.4.06 + 8.9 = ? (a) 12.86 (b) 4.95 (c) 12.96 (d) 13.06
  39. 39.What is the value of the digit 3 in 41.723? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  40. 40.5.34 + 2.7 = ? (a) 5.61 (b) 8.04 (c) 8.14 (d) 7.94

Answer key

  1. 10
  2. 8.54
  3. 0.061
  4. 15.96
  5. 7.47
  6. 9
  7. 10.62
  8. 2
  9. 0.3
  10. 0.094
  11. 70
  12. 0.42
  13. 0.3
  14. 12.74
  15. 9.92
  16. 10.33
  17. 0.002
  18. 0.22
  19. 3
  20. 8.84
  21. 3
  22. 6
  23. 0.27
  24. 30
  25. 10.36
  26. 5
  27. 0.085
  28. 0.068
  29. 30
  30. 10.67
  31. 11.55
  32. 0.01
  33. 0.006
  34. 0.38
  35. 0.009
  36. 0.001
  37. 0.037
  38. 12.96
  39. 0.003
  40. 8.04

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