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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 840 · 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. 1.4.98 + 2.1 = ? (a) 7.18 (b) 7.08 (c) 5.19 (d) 6.98
  2. 2.What is the value of the digit 7 in 85.796? (a) 0.007 (b) 0.07 (c) 7 (d) 0.7
  3. 3.Which is the smallest: 0.8, 0.011, 0.735, 0.89? (a) 0.8 (b) 0.011 (c) 0.735 (d) 0.89
  4. 4.What is the value of the digit 1 in 13.742? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  5. 5.Which is the greatest: 0.2, 0.095, 0.127, 0.27? (a) 0.2 (b) 0.095 (c) 0.127 (d) 0.27
  6. 6.What is the value of the digit 7 in 23.457? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  7. 7.Which is the smallest: 0.585, 0.065, 0.6, 0.65? (a) 0.585 (b) 0.065 (c) 0.6 (d) 0.65
  8. 8.1.73 + 7.2 = ? (a) 8.93 (b) 9.03 (c) 2.45 (d) 8.83
  9. 9.Which is the greatest: 0.8, 0.81, 0.016, 0.733? (a) 0.8 (b) 0.81 (c) 0.016 (d) 0.733
  10. 10.5.95 + 7.3 = ? (a) 13.35 (b) 13.15 (c) 13.25 (d) 6.68
  11. 11.2.83 + 8.6 = ? (a) 11.53 (b) 11.43 (c) 11.33 (d) 3.69
  12. 12.Which is the smallest: 0.695, 0.7, 0.73, 0.097? (a) 0.695 (b) 0.7 (c) 0.73 (d) 0.097
  13. 13.What is the value of the digit 9 in 92.516? (a) 0.9 (b) 0.09 (c) 90 (d) 9
  14. 14.What is the value of the digit 8 in 26.873? (a) 8 (b) 0.008 (c) 0.08 (d) 0.8
  15. 15.What is the value of the digit 1 in 17.382? (a) 0.01 (b) 0.1 (c) 10 (d) 1
  16. 16.Which is the smallest: 0.5, 0.487, 0.077, 0.55? (a) 0.5 (b) 0.487 (c) 0.077 (d) 0.55
  17. 17.What is the value of the digit 6 in 13.986? (a) 0.06 (b) 6 (c) 0.006 (d) 0.6
  18. 18.What is the value of the digit 5 in 68.751? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  19. 19.Which is the greatest: 0.8, 0.013, 0.84, 0.778? (a) 0.8 (b) 0.013 (c) 0.84 (d) 0.778
  20. 20.What is the value of the digit 4 in 46.139? (a) 0.04 (b) 4 (c) 40 (d) 0.4
  21. 21.Which is the greatest: 0.3, 0.36, 0.281, 0.027? (a) 0.3 (b) 0.36 (c) 0.281 (d) 0.027
  22. 22.8.23 + 6.4 = ? (a) 14.53 (b) 14.73 (c) 8.87 (d) 14.63
  23. 23.Which is the smallest: 0.84, 0.042, 0.8, 0.716? (a) 0.84 (b) 0.042 (c) 0.8 (d) 0.716
  24. 24.What is the value of the digit 7 in 67.289? (a) 70 (b) 7 (c) 0.07 (d) 0.7
  25. 25.Which is the greatest: 0.096, 0.26, 0.2, 0.116? (a) 0.096 (b) 0.26 (c) 0.2 (d) 0.116
  26. 26.Which is the smallest: 0.073, 0.699, 0.7, 0.72? (a) 0.073 (b) 0.699 (c) 0.7 (d) 0.72
  27. 27.6.09 + 7.4 = ? (a) 6.83 (b) 13.49 (c) 13.39 (d) 13.59
  28. 28.3.91 + 3.1 = ? (a) 6.91 (b) 7.01 (c) 4.22 (d) 7.11
  29. 29.What is the value of the digit 1 in 18.329? (a) 10 (b) 1 (c) 0.1 (d) 0.01
  30. 30.5.01 + 6.8 = ? (a) 11.91 (b) 11.71 (c) 5.69 (d) 11.81
  31. 31.What is the value of the digit 6 in 19.463? (a) 0.6 (b) 6 (c) 0.006 (d) 0.06
  32. 32.What is the value of the digit 6 in 63.592? (a) 60 (b) 6 (c) 0.06 (d) 0.6
  33. 33.Which is the smallest: 0.8, 0.077, 0.781, 0.84? (a) 0.8 (b) 0.077 (c) 0.781 (d) 0.84
  34. 34.What is the value of the digit 5 in 69.385? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  35. 35.Which is the greatest: 0.8, 0.83, 0.076, 0.761? (a) 0.8 (b) 0.83 (c) 0.076 (d) 0.761
  36. 36.5.41 + 1.9 = ? (a) 7.41 (b) 7.31 (c) 7.21 (d) 5.6
  37. 37.Which is the greatest: 0.097, 0.8, 0.82, 0.773? (a) 0.097 (b) 0.8 (c) 0.82 (d) 0.773
  38. 38.Which is the smallest: 0.31, 0.043, 0.254, 0.3? (a) 0.31 (b) 0.043 (c) 0.254 (d) 0.3
  39. 39.6.91 + 7.1 = ? (a) 14.11 (b) 7.62 (c) 13.91 (d) 14.01
  40. 40.Which is the smallest: 0.079, 0.6, 0.68, 0.529? (a) 0.079 (b) 0.6 (c) 0.68 (d) 0.529

Answer key

  1. 7.08
  2. 0.7
  3. 0.011
  4. 10
  5. 0.27
  6. 0.007
  7. 0.065
  8. 8.93
  9. 0.81
  10. 13.25
  11. 11.43
  12. 0.097
  13. 90
  14. 0.8
  15. 10
  16. 0.077
  17. 0.006
  18. 0.05
  19. 0.84
  20. 40
  21. 0.36
  22. 14.63
  23. 0.042
  24. 7
  25. 0.26
  26. 0.073
  27. 13.49
  28. 7.01
  29. 10
  30. 11.81
  31. 0.06
  32. 60
  33. 0.077
  34. 0.005
  35. 0.83
  36. 7.31
  37. 0.82
  38. 0.043
  39. 14.01
  40. 0.079

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