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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 110 · 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.Which is the smallest: 0.059, 0.56, 0.5, 0.411? (a) 0.059 (b) 0.56 (c) 0.5 (d) 0.411
  2. 2.8.65 + 2.6 = ? (a) 8.91 (b) 11.25 (c) 11.15 (d) 11.35
  3. 3.What is the value of the digit 1 in 17.824? (a) 10 (b) 0.01 (c) 1 (d) 0.1
  4. 4.2.31 + 9.1 = ? (a) 11.51 (b) 11.31 (c) 3.22 (d) 11.41
  5. 5.9.05 + 2.9 = ? (a) 9.34 (b) 11.85 (c) 12.05 (d) 11.95
  6. 6.8.63 + 6.6 = ? (a) 9.29 (b) 15.13 (c) 15.23 (d) 15.33
  7. 7.What is the value of the digit 1 in 48.251? (a) 0.001 (b) 0.1 (c) 0.01 (d) 1
  8. 8.What is the value of the digit 6 in 94.156? (a) 0.06 (b) 0.6 (c) 6 (d) 0.006
  9. 9.Which is the greatest: 0.8, 0.729, 0.86, 0.022? (a) 0.8 (b) 0.729 (c) 0.86 (d) 0.022
  10. 10.What is the value of the digit 6 in 28.146? (a) 0.006 (b) 0.06 (c) 6 (d) 0.6
  11. 11.What is the value of the digit 2 in 62.751? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  12. 12.Which is the greatest: 0.73, 0.7, 0.694, 0.082? (a) 0.73 (b) 0.7 (c) 0.694 (d) 0.082
  13. 13.Which is the greatest: 0.134, 0.29, 0.026, 0.2? (a) 0.134 (b) 0.29 (c) 0.026 (d) 0.2
  14. 14.5.12 + 8.1 = ? (a) 13.22 (b) 13.32 (c) 5.93 (d) 13.12
  15. 15.What is the value of the digit 1 in 16.392? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  16. 16.8.27 + 9.4 = ? (a) 9.21 (b) 17.67 (c) 17.77 (d) 17.57
  17. 17.2.83 + 9.4 = ? (a) 3.77 (b) 12.33 (c) 12.13 (d) 12.23
  18. 18.What is the value of the digit 9 in 28.914? (a) 0.9 (b) 9 (c) 0.009 (d) 0.09
  19. 19.Which is the greatest: 0.22, 0.2, 0.014, 0.187? (a) 0.22 (b) 0.2 (c) 0.014 (d) 0.187
  20. 20.1.96 + 2.7 = ? (a) 4.66 (b) 4.76 (c) 4.56 (d) 2.23
  21. 21.2.28 + 5.8 = ? (a) 7.98 (b) 8.08 (c) 8.18 (d) 2.86
  22. 22.Which is the smallest: 0.655, 0.77, 0.7, 0.018? (a) 0.655 (b) 0.77 (c) 0.7 (d) 0.018
  23. 23.5.31 + 7.7 = ? (a) 6.08 (b) 12.91 (c) 13.01 (d) 13.11
  24. 24.5.71 + 7.1 = ? (a) 12.71 (b) 12.81 (c) 12.91 (d) 6.42
  25. 25.What is the value of the digit 5 in 12.958? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  26. 26.What is the value of the digit 5 in 58.162? (a) 5 (b) 0.5 (c) 50 (d) 0.05
  27. 27.6.22 + 8.7 = ? (a) 15.02 (b) 14.92 (c) 7.09 (d) 14.82
  28. 28.5.91 + 8.2 = ? (a) 14.01 (b) 6.73 (c) 14.21 (d) 14.11
  29. 29.What is the value of the digit 9 in 36.192? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  30. 30.4.13 + 5.6 = ? (a) 9.73 (b) 9.63 (c) 4.69 (d) 9.83
  31. 31.6.24 + 9.9 = ? (a) 16.24 (b) 16.14 (c) 16.04 (d) 7.23
  32. 32.What is the value of the digit 4 in 35.824? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4
  33. 33.5.51 + 9.3 = ? (a) 14.81 (b) 14.71 (c) 14.91 (d) 6.44
  34. 34.Which is the greatest: 0.014, 0.3, 0.32, 0.212? (a) 0.014 (b) 0.3 (c) 0.32 (d) 0.212
  35. 35.Which is the smallest: 0.72, 0.691, 0.7, 0.086? (a) 0.72 (b) 0.691 (c) 0.7 (d) 0.086
  36. 36.What is the value of the digit 6 in 86.213? (a) 0.6 (b) 60 (c) 6 (d) 0.06
  37. 37.7.03 + 3.1 = ? (a) 10.03 (b) 10.23 (c) 7.34 (d) 10.13
  38. 38.What is the value of the digit 7 in 17.896? (a) 7 (b) 70 (c) 0.7 (d) 0.07
  39. 39.Which is the greatest: 0.2, 0.144, 0.097, 0.26? (a) 0.2 (b) 0.144 (c) 0.097 (d) 0.26
  40. 40.What is the value of the digit 6 in 81.364? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6

Answer key

  1. 0.059
  2. 11.25
  3. 10
  4. 11.41
  5. 11.95
  6. 15.23
  7. 0.001
  8. 0.006
  9. 0.86
  10. 0.006
  11. 2
  12. 0.73
  13. 0.29
  14. 13.22
  15. 10
  16. 17.67
  17. 12.23
  18. 0.9
  19. 0.22
  20. 4.66
  21. 8.08
  22. 0.018
  23. 13.01
  24. 12.81
  25. 0.05
  26. 50
  27. 14.92
  28. 14.11
  29. 0.09
  30. 9.73
  31. 16.14
  32. 0.004
  33. 14.81
  34. 0.32
  35. 0.086
  36. 6
  37. 10.13
  38. 7
  39. 0.26
  40. 0.06

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