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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 227 · 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 53.412? (a) 30 (b) 0.03 (c) 0.3 (d) 3
  2. 2.4.38 + 1.5 = ? (a) 5.78 (b) 5.88 (c) 5.98 (d) 4.53
  3. 3.What is the value of the digit 2 in 47.281? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  4. 4.8.08 + 9.2 = ? (a) 17.18 (b) 17.38 (c) 17.28 (d) 9
  5. 5.Which is the greatest: 0.079, 0.61, 0.6, 0.528? (a) 0.079 (b) 0.61 (c) 0.6 (d) 0.528
  6. 6.What is the value of the digit 1 in 98.174? (a) 0.001 (b) 0.01 (c) 0.1 (d) 1
  7. 7.2.81 + 1.7 = ? (a) 2.98 (b) 4.51 (c) 4.41 (d) 4.61
  8. 8.7.01 + 6.7 = ? (a) 13.61 (b) 13.81 (c) 13.71 (d) 7.68
  9. 9.Which is the smallest: 0.112, 0.074, 0.29, 0.2? (a) 0.112 (b) 0.074 (c) 0.29 (d) 0.2
  10. 10.What is the value of the digit 4 in 94.287? (a) 0.4 (b) 40 (c) 0.04 (d) 4
  11. 11.5.01 + 1.1 = ? (a) 6.21 (b) 5.12 (c) 6.01 (d) 6.11
  12. 12.3.29 + 7.4 = ? (a) 10.59 (b) 10.69 (c) 4.03 (d) 10.79
  13. 13.What is the value of the digit 8 in 87.294? (a) 0.08 (b) 80 (c) 0.8 (d) 8
  14. 14.2.06 + 3.5 = ? (a) 2.41 (b) 5.56 (c) 5.46 (d) 5.66
  15. 15.Which is the greatest: 0.344, 0.4, 0.023, 0.42? (a) 0.344 (b) 0.4 (c) 0.023 (d) 0.42
  16. 16.1.38 + 9.5 = ? (a) 10.78 (b) 2.33 (c) 10.98 (d) 10.88
  17. 17.Which is the greatest: 0.88, 0.8, 0.094, 0.713? (a) 0.88 (b) 0.8 (c) 0.094 (d) 0.713
  18. 18.9.92 + 2.2 = ? (a) 12.12 (b) 12.02 (c) 10.14 (d) 12.22
  19. 19.Which is the greatest: 0.41, 0.383, 0.4, 0.052? (a) 0.41 (b) 0.383 (c) 0.4 (d) 0.052
  20. 20.What is the value of the digit 9 in 74.529? (a) 0.09 (b) 9 (c) 0.009 (d) 0.9
  21. 21.2.88 + 9.1 = ? (a) 12.08 (b) 11.98 (c) 11.88 (d) 3.79
  22. 22.9.89 + 7.3 = ? (a) 17.29 (b) 17.09 (c) 10.62 (d) 17.19
  23. 23.Which is the greatest: 0.5, 0.055, 0.57, 0.492? (a) 0.5 (b) 0.055 (c) 0.57 (d) 0.492
  24. 24.4.25 + 4.6 = ? (a) 8.95 (b) 4.71 (c) 8.75 (d) 8.85
  25. 25.9.99 + 1.2 = ? (a) 10.11 (b) 11.09 (c) 11.19 (d) 11.29
  26. 26.8.76 + 3.6 = ? (a) 12.26 (b) 12.36 (c) 12.46 (d) 9.12
  27. 27.What is the value of the digit 2 in 21.657? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  28. 28.Which is the smallest: 0.064, 0.6, 0.519, 0.67? (a) 0.064 (b) 0.6 (c) 0.519 (d) 0.67
  29. 29.Which is the greatest: 0.422, 0.52, 0.075, 0.5? (a) 0.422 (b) 0.52 (c) 0.075 (d) 0.5
  30. 30.3.24 + 6.8 = ? (a) 9.94 (b) 3.92 (c) 10.04 (d) 10.14
  31. 31.Which is the greatest: 0.345, 0.44, 0.4, 0.015? (a) 0.345 (b) 0.44 (c) 0.4 (d) 0.015
  32. 32.Which is the greatest: 0.055, 0.6, 0.576, 0.66? (a) 0.055 (b) 0.6 (c) 0.576 (d) 0.66
  33. 33.6.38 + 8.4 = ? (a) 14.88 (b) 7.22 (c) 14.78 (d) 14.68
  34. 34.Which is the smallest: 0.5, 0.031, 0.53, 0.471? (a) 0.5 (b) 0.031 (c) 0.53 (d) 0.471
  35. 35.What is the value of the digit 1 in 36.125? (a) 1 (b) 0.001 (c) 0.01 (d) 0.1
  36. 36.2.33 + 2.5 = ? (a) 2.58 (b) 4.73 (c) 4.83 (d) 4.93
  37. 37.What is the value of the digit 5 in 28.357? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  38. 38.8.61 + 1.4 = ? (a) 9.91 (b) 10.11 (c) 10.01 (d) 8.75
  39. 39.8.17 + 7.9 = ? (a) 16.07 (b) 16.17 (c) 15.97 (d) 8.96
  40. 40.Which is the smallest: 0.74, 0.7, 0.026, 0.674? (a) 0.74 (b) 0.7 (c) 0.026 (d) 0.674

Answer key

  1. 3
  2. 5.88
  3. 0.2
  4. 17.28
  5. 0.61
  6. 0.1
  7. 4.51
  8. 13.71
  9. 0.074
  10. 4
  11. 6.11
  12. 10.69
  13. 80
  14. 5.56
  15. 0.42
  16. 10.88
  17. 0.88
  18. 12.12
  19. 0.41
  20. 0.009
  21. 11.98
  22. 17.19
  23. 0.57
  24. 8.85
  25. 11.19
  26. 12.36
  27. 20
  28. 0.064
  29. 0.52
  30. 10.04
  31. 0.44
  32. 0.66
  33. 14.78
  34. 0.031
  35. 0.1
  36. 4.83
  37. 0.05
  38. 10.01
  39. 16.07
  40. 0.026

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