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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 691 · 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. 1.1.34 + 8.6 = ? (a) 9.94 (b) 10.04 (c) 2.2 (d) 9.84
  2. 2.Which is the smallest: 0.655, 0.78, 0.7, 0.017? (a) 0.655 (b) 0.78 (c) 0.7 (d) 0.017
  3. 3.Which is the greatest: 0.077, 0.63, 0.6, 0.521? (a) 0.077 (b) 0.63 (c) 0.6 (d) 0.521
  4. 4.4.18 + 2.2 = ? (a) 6.28 (b) 6.38 (c) 6.48 (d) 4.4
  5. 5.What is the value of the digit 7 in 87.293? (a) 0.07 (b) 7 (c) 70 (d) 0.7
  6. 6.What is the value of the digit 4 in 57.849? (a) 4 (b) 0.004 (c) 0.4 (d) 0.04
  7. 7.Which is the smallest: 0.25, 0.2, 0.091, 0.131? (a) 0.25 (b) 0.2 (c) 0.091 (d) 0.131
  8. 8.What is the value of the digit 2 in 69.234? (a) 0.02 (b) 0.002 (c) 2 (d) 0.2
  9. 9.5.27 + 8.8 = ? (a) 13.97 (b) 6.15 (c) 14.17 (d) 14.07
  10. 10.What is the value of the digit 7 in 89.627? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7
  11. 11.Which is the greatest: 0.66, 0.6, 0.521, 0.051? (a) 0.66 (b) 0.6 (c) 0.521 (d) 0.051
  12. 12.4.81 + 5.1 = ? (a) 5.32 (b) 10.01 (c) 9.81 (d) 9.91
  13. 13.What is the value of the digit 3 in 85.314? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  14. 14.3.49 + 1.4 = ? (a) 4.89 (b) 3.63 (c) 4.99 (d) 4.79
  15. 15.Which is the greatest: 0.51, 0.416, 0.5, 0.025? (a) 0.51 (b) 0.416 (c) 0.5 (d) 0.025
  16. 16.Which is the greatest: 0.232, 0.061, 0.3, 0.36? (a) 0.232 (b) 0.061 (c) 0.3 (d) 0.36
  17. 17.What is the value of the digit 8 in 78.253? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  18. 18.2.86 + 2.9 = ? (a) 5.86 (b) 5.76 (c) 3.15 (d) 5.66
  19. 19.What is the value of the digit 2 in 21.675? (a) 0.2 (b) 20 (c) 0.02 (d) 2
  20. 20.1.91 + 4.9 = ? (a) 2.4 (b) 6.81 (c) 6.71 (d) 6.91
  21. 21.Which is the greatest: 0.7, 0.062, 0.634, 0.75? (a) 0.7 (b) 0.062 (c) 0.634 (d) 0.75
  22. 22.1.28 + 7.8 = ? (a) 2.06 (b) 9.08 (c) 8.98 (d) 9.18
  23. 23.What is the value of the digit 2 in 58.217? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  24. 24.Which is the greatest: 0.58, 0.5, 0.089, 0.424? (a) 0.58 (b) 0.5 (c) 0.089 (d) 0.424
  25. 25.What is the value of the digit 1 in 16.382? (a) 1 (b) 0.01 (c) 0.1 (d) 10
  26. 26.Which is the greatest: 0.67, 0.6, 0.078, 0.567? (a) 0.67 (b) 0.6 (c) 0.078 (d) 0.567
  27. 27.What is the value of the digit 6 in 86.417? (a) 6 (b) 60 (c) 0.6 (d) 0.06
  28. 28.Which is the smallest: 0.76, 0.7, 0.011, 0.666? (a) 0.76 (b) 0.7 (c) 0.011 (d) 0.666
  29. 29.Which is the smallest: 0.093, 0.75, 0.7, 0.636? (a) 0.093 (b) 0.75 (c) 0.7 (d) 0.636
  30. 30.Which is the smallest: 0.8, 0.721, 0.032, 0.86? (a) 0.8 (b) 0.721 (c) 0.032 (d) 0.86
  31. 31.What is the value of the digit 7 in 93.275? (a) 7 (b) 0.07 (c) 0.007 (d) 0.7
  32. 32.6.65 + 2.1 = ? (a) 8.75 (b) 6.86 (c) 8.85 (d) 8.65
  33. 33.4.09 + 1.6 = ? (a) 5.59 (b) 5.69 (c) 5.79 (d) 4.25
  34. 34.Which is the greatest: 0.5, 0.054, 0.55, 0.437? (a) 0.5 (b) 0.054 (c) 0.55 (d) 0.437
  35. 35.Which is the smallest: 0.226, 0.096, 0.3, 0.31? (a) 0.226 (b) 0.096 (c) 0.3 (d) 0.31
  36. 36.What is the value of the digit 4 in 58.174? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  37. 37.Which is the smallest: 0.427, 0.57, 0.5, 0.086? (a) 0.427 (b) 0.57 (c) 0.5 (d) 0.086
  38. 38.What is the value of the digit 9 in 49.872? (a) 0.09 (b) 90 (c) 0.9 (d) 9
  39. 39.Which is the greatest: 0.24, 0.052, 0.2, 0.123? (a) 0.24 (b) 0.052 (c) 0.2 (d) 0.123
  40. 40.What is the value of the digit 5 in 61.245? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5

Answer key

  1. 9.94
  2. 0.017
  3. 0.63
  4. 6.38
  5. 7
  6. 0.04
  7. 0.091
  8. 0.2
  9. 14.07
  10. 0.007
  11. 0.66
  12. 9.91
  13. 0.3
  14. 4.89
  15. 0.51
  16. 0.36
  17. 8
  18. 5.76
  19. 20
  20. 6.81
  21. 0.75
  22. 9.08
  23. 0.2
  24. 0.58
  25. 10
  26. 0.67
  27. 6
  28. 0.011
  29. 0.093
  30. 0.032
  31. 0.07
  32. 8.75
  33. 5.69
  34. 0.55
  35. 0.096
  36. 0.004
  37. 0.086
  38. 9
  39. 0.24
  40. 0.005

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