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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 77 · 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.Which is the greatest: 0.62, 0.093, 0.553, 0.6? (a) 0.62 (b) 0.093 (c) 0.553 (d) 0.6
  2. 2.What is the value of the digit 6 in 67.241? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  3. 3.8.81 + 3.6 = ? (a) 9.17 (b) 12.41 (c) 12.51 (d) 12.31
  4. 4.4.51 + 2.9 = ? (a) 7.41 (b) 4.8 (c) 7.51 (d) 7.31
  5. 5.2.09 + 6.7 = ? (a) 2.76 (b) 8.79 (c) 8.69 (d) 8.89
  6. 6.What is the value of the digit 6 in 62.574? (a) 0.06 (b) 60 (c) 0.6 (d) 6
  7. 7.Which is the greatest: 0.591, 0.66, 0.029, 0.6? (a) 0.591 (b) 0.66 (c) 0.029 (d) 0.6
  8. 8.5.37 + 4.7 = ? (a) 10.17 (b) 9.97 (c) 5.84 (d) 10.07
  9. 9.Which is the greatest: 0.083, 0.543, 0.63, 0.6? (a) 0.083 (b) 0.543 (c) 0.63 (d) 0.6
  10. 10.Which is the smallest: 0.618, 0.73, 0.7, 0.051? (a) 0.618 (b) 0.73 (c) 0.7 (d) 0.051
  11. 11.2.19 + 4.7 = ? (a) 6.89 (b) 6.99 (c) 6.79 (d) 2.66
  12. 12.2.25 + 7.1 = ? (a) 9.45 (b) 9.25 (c) 9.35 (d) 2.96
  13. 13.Which is the greatest: 0.083, 0.77, 0.653, 0.7? (a) 0.083 (b) 0.77 (c) 0.653 (d) 0.7
  14. 14.What is the value of the digit 9 in 62.319? (a) 0.009 (b) 0.09 (c) 9 (d) 0.9
  15. 15.7.69 + 4.7 = ? (a) 12.49 (b) 12.39 (c) 8.16 (d) 12.29
  16. 16.3.24 + 6.9 = ? (a) 3.93 (b) 10.24 (c) 10.14 (d) 10.04
  17. 17.3.49 + 9.9 = ? (a) 13.39 (b) 4.48 (c) 13.29 (d) 13.49
  18. 18.4.54 + 8.6 = ? (a) 13.14 (b) 13.24 (c) 5.4 (d) 13.04
  19. 19.5.44 + 9.4 = ? (a) 6.38 (b) 14.84 (c) 14.74 (d) 14.94
  20. 20.Which is the greatest: 0.131, 0.26, 0.089, 0.2? (a) 0.131 (b) 0.26 (c) 0.089 (d) 0.2
  21. 21.9.18 + 5.4 = ? (a) 14.58 (b) 14.48 (c) 9.72 (d) 14.68
  22. 22.Which is the smallest: 0.73, 0.7, 0.017, 0.624? (a) 0.73 (b) 0.7 (c) 0.017 (d) 0.624
  23. 23.What is the value of the digit 6 in 69.725? (a) 0.6 (b) 6 (c) 60 (d) 0.06
  24. 24.5.43 + 7.9 = ? (a) 13.33 (b) 13.43 (c) 6.22 (d) 13.23
  25. 25.6.53 + 2.5 = ? (a) 9.13 (b) 6.78 (c) 9.03 (d) 8.93
  26. 26.7.64 + 2.3 = ? (a) 9.94 (b) 9.84 (c) 7.87 (d) 10.04
  27. 27.What is the value of the digit 7 in 78.623? (a) 7 (b) 0.07 (c) 0.7 (d) 70
  28. 28.Which is the greatest: 0.711, 0.049, 0.8, 0.83? (a) 0.711 (b) 0.049 (c) 0.8 (d) 0.83
  29. 29.2.16 + 7.4 = ? (a) 2.9 (b) 9.46 (c) 9.56 (d) 9.66
  30. 30.Which is the smallest: 0.041, 0.77, 0.7, 0.625? (a) 0.041 (b) 0.77 (c) 0.7 (d) 0.625
  31. 31.What is the value of the digit 4 in 28.654? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  32. 32.Which is the greatest: 0.079, 0.58, 0.5, 0.482? (a) 0.079 (b) 0.58 (c) 0.5 (d) 0.482
  33. 33.3.05 + 4.4 = ? (a) 3.49 (b) 7.45 (c) 7.55 (d) 7.35
  34. 34.Which is the smallest: 0.8, 0.044, 0.83, 0.739? (a) 0.8 (b) 0.044 (c) 0.83 (d) 0.739
  35. 35.What is the value of the digit 8 in 82.461? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  36. 36.What is the value of the digit 9 in 39.174? (a) 0.09 (b) 9 (c) 0.9 (d) 90
  37. 37.Which is the greatest: 0.043, 0.83, 0.8, 0.763? (a) 0.043 (b) 0.83 (c) 0.8 (d) 0.763
  38. 38.9.96 + 1.4 = ? (a) 11.26 (b) 10.1 (c) 11.46 (d) 11.36
  39. 39.Which is the smallest: 0.71, 0.699, 0.071, 0.7? (a) 0.71 (b) 0.699 (c) 0.071 (d) 0.7
  40. 40.What is the value of the digit 3 in 37.185? (a) 0.03 (b) 3 (c) 0.3 (d) 30

Answer key

  1. 0.62
  2. 60
  3. 12.41
  4. 7.41
  5. 8.79
  6. 60
  7. 0.66
  8. 10.07
  9. 0.63
  10. 0.051
  11. 6.89
  12. 9.35
  13. 0.77
  14. 0.009
  15. 12.39
  16. 10.14
  17. 13.39
  18. 13.14
  19. 14.84
  20. 0.26
  21. 14.58
  22. 0.017
  23. 60
  24. 13.33
  25. 9.03
  26. 9.94
  27. 70
  28. 0.83
  29. 9.56
  30. 0.041
  31. 0.004
  32. 0.58
  33. 7.45
  34. 0.044
  35. 80
  36. 9
  37. 0.83
  38. 11.36
  39. 0.071
  40. 30

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