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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 164 · 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. 1.5.61 + 5.3 = ? (a) 6.14 (b) 10.81 (c) 10.91 (d) 11.01
  2. 2.What is the value of the digit 2 in 83.241? (a) 2 (b) 0.002 (c) 0.02 (d) 0.2
  3. 3.What is the value of the digit 4 in 93.428? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4
  4. 4.Which is the smallest: 0.085, 0.41, 0.327, 0.4? (a) 0.085 (b) 0.41 (c) 0.327 (d) 0.4
  5. 5.Which is the greatest: 0.6, 0.541, 0.63, 0.024? (a) 0.6 (b) 0.541 (c) 0.63 (d) 0.024
  6. 6.5.25 + 9.1 = ? (a) 14.45 (b) 14.35 (c) 14.25 (d) 6.16
  7. 7.What is the value of the digit 1 in 56.132? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  8. 8.Which is the greatest: 0.066, 0.728, 0.86, 0.8? (a) 0.066 (b) 0.728 (c) 0.86 (d) 0.8
  9. 9.What is the value of the digit 9 in 28.395? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  10. 10.6.56 + 3.1 = ? (a) 9.56 (b) 6.87 (c) 9.66 (d) 9.76
  11. 11.What is the value of the digit 5 in 59.146? (a) 50 (b) 0.05 (c) 0.5 (d) 5
  12. 12.Which is the smallest: 0.045, 0.3, 0.268, 0.31? (a) 0.045 (b) 0.3 (c) 0.268 (d) 0.31
  13. 13.9.64 + 4.6 = ? (a) 14.24 (b) 14.34 (c) 10.1 (d) 14.14
  14. 14.What is the value of the digit 9 in 37.895? (a) 0.009 (b) 0.9 (c) 9 (d) 0.09
  15. 15.2.92 + 2.1 = ? (a) 3.13 (b) 5.02 (c) 4.92 (d) 5.12
  16. 16.4.29 + 2.9 = ? (a) 4.58 (b) 7.19 (c) 7.29 (d) 7.09
  17. 17.What is the value of the digit 6 in 94.516? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  18. 18.Which is the smallest: 0.7, 0.692, 0.75, 0.084? (a) 0.7 (b) 0.692 (c) 0.75 (d) 0.084
  19. 19.Which is the greatest: 0.31, 0.3, 0.213, 0.034? (a) 0.31 (b) 0.3 (c) 0.213 (d) 0.034
  20. 20.What is the value of the digit 5 in 54.123? (a) 5 (b) 0.5 (c) 0.05 (d) 50
  21. 21.2.65 + 8.3 = ? (a) 3.48 (b) 10.85 (c) 10.95 (d) 11.05
  22. 22.2.07 + 1.4 = ? (a) 3.47 (b) 2.21 (c) 3.37 (d) 3.57
  23. 23.7.03 + 7.9 = ? (a) 7.82 (b) 14.93 (c) 15.03 (d) 14.83
  24. 24.7.87 + 6.4 = ? (a) 8.51 (b) 14.37 (c) 14.27 (d) 14.17
  25. 25.6.16 + 2.2 = ? (a) 8.36 (b) 8.26 (c) 8.46 (d) 6.38
  26. 26.What is the value of the digit 8 in 78.365? (a) 8 (b) 0.08 (c) 80 (d) 0.8
  27. 27.Which is the greatest: 0.62, 0.6, 0.018, 0.587? (a) 0.62 (b) 0.6 (c) 0.018 (d) 0.587
  28. 28.Which is the greatest: 0.092, 0.168, 0.22, 0.2? (a) 0.092 (b) 0.168 (c) 0.22 (d) 0.2
  29. 29.Which is the greatest: 0.8, 0.086, 0.87, 0.724? (a) 0.8 (b) 0.086 (c) 0.87 (d) 0.724
  30. 30.What is the value of the digit 6 in 16.892? (a) 60 (b) 0.06 (c) 6 (d) 0.6
  31. 31.Which is the greatest: 0.42, 0.016, 0.4, 0.392? (a) 0.42 (b) 0.016 (c) 0.4 (d) 0.392
  32. 32.1.33 + 2.9 = ? (a) 4.23 (b) 4.33 (c) 1.62 (d) 4.13
  33. 33.Which is the smallest: 0.437, 0.54, 0.071, 0.5? (a) 0.437 (b) 0.54 (c) 0.071 (d) 0.5
  34. 34.5.07 + 3.2 = ? (a) 5.39 (b) 8.17 (c) 8.27 (d) 8.37
  35. 35.Which is the greatest: 0.019, 0.28, 0.2, 0.161? (a) 0.019 (b) 0.28 (c) 0.2 (d) 0.161
  36. 36.What is the value of the digit 5 in 24.569? (a) 0.05 (b) 5 (c) 0.5 (d) 0.005
  37. 37.What is the value of the digit 2 in 51.723? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  38. 38.Which is the smallest: 0.83, 0.045, 0.8, 0.738? (a) 0.83 (b) 0.045 (c) 0.8 (d) 0.738
  39. 39.2.69 + 3.4 = ? (a) 3.03 (b) 5.99 (c) 6.19 (d) 6.09
  40. 40.8.99 + 4.4 = ? (a) 9.43 (b) 13.49 (c) 13.39 (d) 13.29

Answer key

  1. 10.91
  2. 0.2
  3. 0.4
  4. 0.085
  5. 0.63
  6. 14.35
  7. 0.1
  8. 0.86
  9. 0.09
  10. 9.66
  11. 50
  12. 0.045
  13. 14.24
  14. 0.09
  15. 5.02
  16. 7.19
  17. 0.006
  18. 0.084
  19. 0.31
  20. 50
  21. 10.95
  22. 3.47
  23. 14.93
  24. 14.27
  25. 8.36
  26. 8
  27. 0.62
  28. 0.22
  29. 0.87
  30. 6
  31. 0.42
  32. 4.23
  33. 0.071
  34. 8.27
  35. 0.28
  36. 0.5
  37. 0.02
  38. 0.045
  39. 6.09
  40. 13.39

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