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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 153 · 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. 1.7.77 + 7.7 = ? (a) 15.47 (b) 15.37 (c) 15.57 (d) 8.54
  2. 2.4.09 + 7.8 = ? (a) 11.99 (b) 4.87 (c) 11.89 (d) 11.79
  3. 3.Which is the greatest: 0.3, 0.37, 0.045, 0.239? (a) 0.3 (b) 0.37 (c) 0.045 (d) 0.239
  4. 4.4.09 + 8.2 = ? (a) 4.91 (b) 12.39 (c) 12.19 (d) 12.29
  5. 5.What is the value of the digit 8 in 38.612? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  6. 6.2.26 + 3.6 = ? (a) 5.96 (b) 5.76 (c) 2.62 (d) 5.86
  7. 7.Which is the greatest: 0.055, 0.394, 0.4, 0.41? (a) 0.055 (b) 0.394 (c) 0.4 (d) 0.41
  8. 8.9.85 + 8.6 = ? (a) 18.45 (b) 10.71 (c) 18.55 (d) 18.35
  9. 9.Which is the smallest: 0.75, 0.687, 0.096, 0.7? (a) 0.75 (b) 0.687 (c) 0.096 (d) 0.7
  10. 10.Which is the greatest: 0.37, 0.035, 0.3, 0.252? (a) 0.37 (b) 0.035 (c) 0.3 (d) 0.252
  11. 11.What is the value of the digit 6 in 62.745? (a) 60 (b) 0.06 (c) 6 (d) 0.6
  12. 12.What is the value of the digit 1 in 48.361? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  13. 13.2.71 + 3.1 = ? (a) 5.71 (b) 5.81 (c) 3.02 (d) 5.91
  14. 14.Which is the smallest: 0.27, 0.032, 0.151, 0.2? (a) 0.27 (b) 0.032 (c) 0.151 (d) 0.2
  15. 15.What is the value of the digit 7 in 48.379? (a) 0.007 (b) 7 (c) 0.07 (d) 0.7
  16. 16.What is the value of the digit 6 in 16.472? (a) 60 (b) 0.06 (c) 0.6 (d) 6
  17. 17.7.25 + 2.9 = ? (a) 10.25 (b) 7.54 (c) 10.15 (d) 10.05
  18. 18.Which is the smallest: 0.071, 0.8, 0.86, 0.762? (a) 0.071 (b) 0.8 (c) 0.86 (d) 0.762
  19. 19.Which is the greatest: 0.4, 0.312, 0.067, 0.41? (a) 0.4 (b) 0.312 (c) 0.067 (d) 0.41
  20. 20.7.93 + 6.1 = ? (a) 14.13 (b) 13.93 (c) 14.03 (d) 8.54
  21. 21.Which is the greatest: 0.61, 0.6, 0.545, 0.071? (a) 0.61 (b) 0.6 (c) 0.545 (d) 0.071
  22. 22.What is the value of the digit 7 in 34.617? (a) 7 (b) 0.7 (c) 0.007 (d) 0.07
  23. 23.2.64 + 9.7 = ? (a) 3.61 (b) 12.44 (c) 12.34 (d) 12.24
  24. 24.What is the value of the digit 8 in 34.982? (a) 8 (b) 0.008 (c) 0.08 (d) 0.8
  25. 25.Which is the greatest: 0.51, 0.5, 0.072, 0.496? (a) 0.51 (b) 0.5 (c) 0.072 (d) 0.496
  26. 26.What is the value of the digit 5 in 95.312? (a) 0.5 (b) 0.05 (c) 50 (d) 5
  27. 27.1.06 + 9.7 = ? (a) 10.76 (b) 2.03 (c) 10.86 (d) 10.66
  28. 28.What is the value of the digit 7 in 85.927? (a) 0.07 (b) 0.007 (c) 7 (d) 0.7
  29. 29.6.65 + 2.1 = ? (a) 8.65 (b) 8.75 (c) 8.85 (d) 6.86
  30. 30.8.33 + 9.6 = ? (a) 18.03 (b) 17.83 (c) 9.29 (d) 17.93
  31. 31.8.38 + 1.8 = ? (a) 8.56 (b) 10.28 (c) 10.08 (d) 10.18
  32. 32.Which is the smallest: 0.72, 0.689, 0.047, 0.7? (a) 0.72 (b) 0.689 (c) 0.047 (d) 0.7
  33. 33.Which is the greatest: 0.41, 0.376, 0.062, 0.4? (a) 0.41 (b) 0.376 (c) 0.062 (d) 0.4
  34. 34.What is the value of the digit 1 in 73.145? (a) 0.01 (b) 0.001 (c) 1 (d) 0.1
  35. 35.3.85 + 3.3 = ? (a) 7.15 (b) 4.18 (c) 7.05 (d) 7.25
  36. 36.Which is the smallest: 0.2, 0.25, 0.027, 0.191? (a) 0.2 (b) 0.25 (c) 0.027 (d) 0.191
  37. 37.What is the value of the digit 8 in 93.658? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  38. 38.What is the value of the digit 6 in 63.185? (a) 0.06 (b) 0.6 (c) 6 (d) 60
  39. 39.What is the value of the digit 7 in 72.846? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  40. 40.What is the value of the digit 4 in 71.624? (a) 0.04 (b) 4 (c) 0.4 (d) 0.004

Answer key

  1. 15.47
  2. 11.89
  3. 0.37
  4. 12.29
  5. 8
  6. 5.86
  7. 0.41
  8. 18.45
  9. 0.096
  10. 0.37
  11. 60
  12. 0.001
  13. 5.81
  14. 0.032
  15. 0.07
  16. 6
  17. 10.15
  18. 0.071
  19. 0.41
  20. 14.03
  21. 0.61
  22. 0.007
  23. 12.34
  24. 0.08
  25. 0.51
  26. 5
  27. 10.76
  28. 0.007
  29. 8.75
  30. 17.93
  31. 10.18
  32. 0.047
  33. 0.41
  34. 0.1
  35. 7.15
  36. 0.027
  37. 0.008
  38. 60
  39. 70
  40. 0.004

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