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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 967 · 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. 1.2.72 + 7.3 = ? (a) 9.92 (b) 10.12 (c) 10.02 (d) 3.45
  2. 2.What is the value of the digit 4 in 36.541? (a) 4 (b) 0.04 (c) 0.004 (d) 0.4
  3. 3.Which is the greatest: 0.757, 0.015, 0.83, 0.8? (a) 0.757 (b) 0.015 (c) 0.83 (d) 0.8
  4. 4.What is the value of the digit 2 in 17.392? (a) 0.2 (b) 2 (c) 0.002 (d) 0.02
  5. 5.What is the value of the digit 2 in 27.583? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  6. 6.Which is the greatest: 0.075, 0.44, 0.372, 0.4? (a) 0.075 (b) 0.44 (c) 0.372 (d) 0.4
  7. 7.What is the value of the digit 8 in 81.259? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  8. 8.4.51 + 9.9 = ? (a) 14.31 (b) 14.41 (c) 5.5 (d) 14.51
  9. 9.Which is the smallest: 0.33, 0.259, 0.3, 0.099? (a) 0.33 (b) 0.259 (c) 0.3 (d) 0.099
  10. 10.2.81 + 9.8 = ? (a) 3.79 (b) 12.51 (c) 12.61 (d) 12.71
  11. 11.5.86 + 1.3 = ? (a) 7.16 (b) 7.06 (c) 5.99 (d) 7.26
  12. 12.What is the value of the digit 6 in 57.621? (a) 0.6 (b) 0.006 (c) 0.06 (d) 6
  13. 13.What is the value of the digit 4 in 14.729? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  14. 14.Which is the greatest: 0.769, 0.011, 0.8, 0.87? (a) 0.769 (b) 0.011 (c) 0.8 (d) 0.87
  15. 15.6.48 + 5.3 = ? (a) 7.01 (b) 11.88 (c) 11.78 (d) 11.68
  16. 16.9.35 + 8.1 = ? (a) 17.45 (b) 10.16 (c) 17.35 (d) 17.55
  17. 17.Which is the greatest: 0.029, 0.685, 0.7, 0.72? (a) 0.029 (b) 0.685 (c) 0.7 (d) 0.72
  18. 18.What is the value of the digit 1 in 18.269? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  19. 19.7.45 + 9.3 = ? (a) 16.75 (b) 16.65 (c) 8.38 (d) 16.85
  20. 20.What is the value of the digit 8 in 41.382? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  21. 21.4.95 + 6.7 = ? (a) 11.75 (b) 5.62 (c) 11.55 (d) 11.65
  22. 22.What is the value of the digit 8 in 18.962? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  23. 23.1.77 + 9.2 = ? (a) 2.69 (b) 11.07 (c) 10.97 (d) 10.87
  24. 24.Which is the smallest: 0.024, 0.229, 0.31, 0.3? (a) 0.024 (b) 0.229 (c) 0.31 (d) 0.3
  25. 25.7.92 + 3.2 = ? (a) 11.02 (b) 8.24 (c) 11.22 (d) 11.12
  26. 26.Which is the greatest: 0.66, 0.051, 0.523, 0.6? (a) 0.66 (b) 0.051 (c) 0.523 (d) 0.6
  27. 27.What is the value of the digit 6 in 28.716? (a) 0.6 (b) 6 (c) 0.06 (d) 0.006
  28. 28.Which is the greatest: 0.6, 0.032, 0.529, 0.66? (a) 0.6 (b) 0.032 (c) 0.529 (d) 0.66
  29. 29.Which is the smallest: 0.181, 0.25, 0.028, 0.2? (a) 0.181 (b) 0.25 (c) 0.028 (d) 0.2
  30. 30.8.41 + 4.1 = ? (a) 8.82 (b) 12.41 (c) 12.51 (d) 12.61
  31. 31.5.83 + 1.8 = ? (a) 7.53 (b) 6.01 (c) 7.63 (d) 7.73
  32. 32.2.66 + 2.1 = ? (a) 4.66 (b) 4.86 (c) 4.76 (d) 2.87
  33. 33.What is the value of the digit 9 in 29.138? (a) 9 (b) 90 (c) 0.9 (d) 0.09
  34. 34.2.31 + 7.5 = ? (a) 9.91 (b) 3.06 (c) 9.71 (d) 9.81
  35. 35.What is the value of the digit 9 in 35.629? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  36. 36.What is the value of the digit 6 in 82.416? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  37. 37.Which is the smallest: 0.698, 0.029, 0.7, 0.77? (a) 0.698 (b) 0.029 (c) 0.7 (d) 0.77
  38. 38.What is the value of the digit 7 in 12.473? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  39. 39.3.24 + 2.3 = ? (a) 5.44 (b) 3.47 (c) 5.64 (d) 5.54
  40. 40.Which is the smallest: 0.014, 0.7, 0.621, 0.74? (a) 0.014 (b) 0.7 (c) 0.621 (d) 0.74

Answer key

  1. 10.02
  2. 0.04
  3. 0.83
  4. 0.002
  5. 20
  6. 0.44
  7. 80
  8. 14.41
  9. 0.099
  10. 12.61
  11. 7.16
  12. 0.6
  13. 4
  14. 0.87
  15. 11.78
  16. 17.45
  17. 0.72
  18. 10
  19. 16.75
  20. 0.08
  21. 11.65
  22. 8
  23. 10.97
  24. 0.024
  25. 11.12
  26. 0.66
  27. 0.006
  28. 0.66
  29. 0.028
  30. 12.51
  31. 7.63
  32. 4.76
  33. 9
  34. 9.81
  35. 0.009
  36. 0.006
  37. 0.029
  38. 0.07
  39. 5.54
  40. 0.014

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