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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 981 · 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. 1.4.85 + 6.7 = ? (a) 11.65 (b) 11.45 (c) 11.55 (d) 5.52
  2. 2.2.23 + 7.7 = ? (a) 3 (b) 9.93 (c) 9.83 (d) 10.03
  3. 3.What is the value of the digit 7 in 59.274? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7
  4. 4.Which is the smallest: 0.395, 0.45, 0.4, 0.061? (a) 0.395 (b) 0.45 (c) 0.4 (d) 0.061
  5. 5.What is the value of the digit 5 in 27.563? (a) 0.005 (b) 0.5 (c) 0.05 (d) 5
  6. 6.What is the value of the digit 4 in 24.836? (a) 4 (b) 0.4 (c) 40 (d) 0.04
  7. 7.9.03 + 3.8 = ? (a) 12.93 (b) 12.83 (c) 12.73 (d) 9.41
  8. 8.Which is the greatest: 0.012, 0.652, 0.77, 0.7? (a) 0.012 (b) 0.652 (c) 0.77 (d) 0.7
  9. 9.What is the value of the digit 9 in 39.415? (a) 90 (b) 0.09 (c) 0.9 (d) 9
  10. 10.8.98 + 5.1 = ? (a) 9.49 (b) 13.98 (c) 14.18 (d) 14.08
  11. 11.Which is the greatest: 0.21, 0.147, 0.2, 0.084? (a) 0.21 (b) 0.147 (c) 0.2 (d) 0.084
  12. 12.3.51 + 5.9 = ? (a) 9.41 (b) 9.31 (c) 9.51 (d) 4.1
  13. 13.1.78 + 3.1 = ? (a) 4.78 (b) 2.09 (c) 4.98 (d) 4.88
  14. 14.7.21 + 3.2 = ? (a) 7.53 (b) 10.51 (c) 10.31 (d) 10.41
  15. 15.What is the value of the digit 8 in 28.935? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  16. 16.Which is the greatest: 0.76, 0.641, 0.7, 0.062? (a) 0.76 (b) 0.641 (c) 0.7 (d) 0.062
  17. 17.Which is the greatest: 0.093, 0.2, 0.26, 0.171? (a) 0.093 (b) 0.2 (c) 0.26 (d) 0.171
  18. 18.4.93 + 5.4 = ? (a) 5.47 (b) 10.23 (c) 10.33 (d) 10.43
  19. 19.Which is the greatest: 0.5, 0.435, 0.031, 0.59? (a) 0.5 (b) 0.435 (c) 0.031 (d) 0.59
  20. 20.Which is the greatest: 0.68, 0.6, 0.063, 0.587? (a) 0.68 (b) 0.6 (c) 0.063 (d) 0.587
  21. 21.What is the value of the digit 1 in 58.341? (a) 0.1 (b) 0.01 (c) 0.001 (d) 1
  22. 22.What is the value of the digit 6 in 39.462? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  23. 23.What is the value of the digit 5 in 37.258? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  24. 24.What is the value of the digit 9 in 36.915? (a) 0.09 (b) 0.009 (c) 0.9 (d) 9
  25. 25.What is the value of the digit 8 in 85.712? (a) 8 (b) 0.08 (c) 0.8 (d) 80
  26. 26.9.12 + 6.6 = ? (a) 9.78 (b) 15.62 (c) 15.82 (d) 15.72
  27. 27.What is the value of the digit 7 in 76.382? (a) 7 (b) 0.7 (c) 0.07 (d) 70
  28. 28.Which is the greatest: 0.76, 0.7, 0.611, 0.053? (a) 0.76 (b) 0.7 (c) 0.611 (d) 0.053
  29. 29.7.83 + 1.2 = ? (a) 9.03 (b) 9.13 (c) 7.95 (d) 8.93
  30. 30.Which is the smallest: 0.2, 0.018, 0.24, 0.152? (a) 0.2 (b) 0.018 (c) 0.24 (d) 0.152
  31. 31.What is the value of the digit 3 in 23.895? (a) 30 (b) 0.3 (c) 0.03 (d) 3
  32. 32.What is the value of the digit 5 in 74.651? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5
  33. 33.2.67 + 7.5 = ? (a) 3.42 (b) 10.17 (c) 10.07 (d) 10.27
  34. 34.What is the value of the digit 1 in 31.785? (a) 0.1 (b) 0.01 (c) 10 (d) 1
  35. 35.What is the value of the digit 3 in 49.367? (a) 3 (b) 0.03 (c) 0.3 (d) 0.003
  36. 36.What is the value of the digit 3 in 12.639? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  37. 37.What is the value of the digit 2 in 12.945? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  38. 38.Which is the greatest: 0.7, 0.673, 0.078, 0.75? (a) 0.7 (b) 0.673 (c) 0.078 (d) 0.75
  39. 39.Which is the greatest: 0.2, 0.28, 0.133, 0.021? (a) 0.2 (b) 0.28 (c) 0.133 (d) 0.021
  40. 40.6.25 + 9.2 = ? (a) 15.35 (b) 15.45 (c) 15.55 (d) 7.17

Answer key

  1. 11.55
  2. 9.93
  3. 0.07
  4. 0.061
  5. 0.5
  6. 4
  7. 12.83
  8. 0.77
  9. 9
  10. 14.08
  11. 0.21
  12. 9.41
  13. 4.88
  14. 10.41
  15. 8
  16. 0.76
  17. 0.26
  18. 10.33
  19. 0.59
  20. 0.68
  21. 0.001
  22. 0.06
  23. 0.05
  24. 0.9
  25. 80
  26. 15.72
  27. 70
  28. 0.76
  29. 9.03
  30. 0.018
  31. 3
  32. 0.05
  33. 10.17
  34. 1
  35. 0.3
  36. 0.03
  37. 2
  38. 0.75
  39. 0.28
  40. 15.45

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