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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 223 · 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 3 in 15.349? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  2. 2.Which is the smallest: 0.52, 0.068, 0.5, 0.424? (a) 0.52 (b) 0.068 (c) 0.5 (d) 0.424
  3. 3.1.23 + 1.6 = ? (a) 2.73 (b) 1.39 (c) 2.93 (d) 2.83
  4. 4.6.09 + 9.7 = ? (a) 15.79 (b) 7.06 (c) 15.89 (d) 15.69
  5. 5.7.77 + 8.9 = ? (a) 16.77 (b) 16.67 (c) 16.57 (d) 8.66
  6. 6.What is the value of the digit 5 in 65.213? (a) 0.5 (b) 0.05 (c) 5 (d) 50
  7. 7.Which is the greatest: 0.2, 0.124, 0.057, 0.22? (a) 0.2 (b) 0.124 (c) 0.057 (d) 0.22
  8. 8.What is the value of the digit 9 in 69.847? (a) 9 (b) 0.09 (c) 90 (d) 0.9
  9. 9.What is the value of the digit 1 in 65.981? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  10. 10.Which is the smallest: 0.732, 0.062, 0.88, 0.8? (a) 0.732 (b) 0.062 (c) 0.88 (d) 0.8
  11. 11.2.46 + 6.1 = ? (a) 8.46 (b) 8.56 (c) 8.66 (d) 3.07
  12. 12.What is the value of the digit 4 in 94.125? (a) 40 (b) 0.04 (c) 0.4 (d) 4
  13. 13.8.65 + 4.6 = ? (a) 9.11 (b) 13.15 (c) 13.25 (d) 13.35
  14. 14.2.32 + 9.6 = ? (a) 12.02 (b) 11.92 (c) 11.82 (d) 3.28
  15. 15.What is the value of the digit 3 in 91.273? (a) 3 (b) 0.03 (c) 0.3 (d) 0.003
  16. 16.What is the value of the digit 9 in 35.297? (a) 0.9 (b) 9 (c) 0.09 (d) 0.009
  17. 17.What is the value of the digit 1 in 17.526? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  18. 18.1.95 + 7.2 = ? (a) 9.25 (b) 2.67 (c) 9.15 (d) 9.05
  19. 19.7.39 + 9.1 = ? (a) 8.3 (b) 16.39 (c) 16.49 (d) 16.59
  20. 20.What is the value of the digit 5 in 25.914? (a) 50 (b) 0.5 (c) 0.05 (d) 5
  21. 21.9.94 + 4.5 = ? (a) 14.44 (b) 14.54 (c) 14.34 (d) 10.39
  22. 22.Which is the greatest: 0.53, 0.447, 0.066, 0.5? (a) 0.53 (b) 0.447 (c) 0.066 (d) 0.5
  23. 23.9.31 + 3.4 = ? (a) 12.71 (b) 9.65 (c) 12.61 (d) 12.81
  24. 24.What is the value of the digit 3 in 58.134? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  25. 25.2.97 + 3.5 = ? (a) 6.47 (b) 6.57 (c) 3.32 (d) 6.37
  26. 26.What is the value of the digit 8 in 21.786? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  27. 27.1.19 + 4.2 = ? (a) 5.39 (b) 1.61 (c) 5.29 (d) 5.49
  28. 28.Which is the smallest: 0.046, 0.87, 0.8, 0.778? (a) 0.046 (b) 0.87 (c) 0.8 (d) 0.778
  29. 29.Which is the greatest: 0.7, 0.615, 0.014, 0.71? (a) 0.7 (b) 0.615 (c) 0.014 (d) 0.71
  30. 30.1.27 + 5.5 = ? (a) 6.67 (b) 1.82 (c) 6.77 (d) 6.87
  31. 31.What is the value of the digit 1 in 12.867? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  32. 32.What is the value of the digit 2 in 25.896? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  33. 33.8.75 + 9.7 = ? (a) 18.35 (b) 18.55 (c) 9.72 (d) 18.45
  34. 34.2.08 + 8.8 = ? (a) 10.88 (b) 2.96 (c) 10.98 (d) 10.78
  35. 35.4.49 + 4.8 = ? (a) 9.39 (b) 9.19 (c) 9.29 (d) 4.97
  36. 36.Which is the greatest: 0.421, 0.56, 0.024, 0.5? (a) 0.421 (b) 0.56 (c) 0.024 (d) 0.5
  37. 37.What is the value of the digit 4 in 26.348? (a) 0.4 (b) 4 (c) 0.004 (d) 0.04
  38. 38.Which is the greatest: 0.519, 0.69, 0.6, 0.025? (a) 0.519 (b) 0.69 (c) 0.6 (d) 0.025
  39. 39.What is the value of the digit 5 in 23.457? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  40. 40.1.59 + 9.6 = ? (a) 11.29 (b) 2.55 (c) 11.19 (d) 11.09

Answer key

  1. 0.3
  2. 0.068
  3. 2.83
  4. 15.79
  5. 16.67
  6. 5
  7. 0.22
  8. 9
  9. 0.001
  10. 0.062
  11. 8.56
  12. 4
  13. 13.25
  14. 11.92
  15. 0.003
  16. 0.09
  17. 10
  18. 9.15
  19. 16.49
  20. 5
  21. 14.44
  22. 0.53
  23. 12.71
  24. 0.03
  25. 6.47
  26. 0.08
  27. 5.39
  28. 0.046
  29. 0.71
  30. 6.77
  31. 10
  32. 20
  33. 18.45
  34. 10.88
  35. 9.29
  36. 0.56
  37. 0.04
  38. 0.69
  39. 0.05
  40. 11.19

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