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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 520 · 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 86.327? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  2. 2.7.46 + 3.7 = ? (a) 7.83 (b) 11.26 (c) 11.06 (d) 11.16
  3. 3.Which is the smallest: 0.073, 0.33, 0.293, 0.3? (a) 0.073 (b) 0.33 (c) 0.293 (d) 0.3
  4. 4.Which is the greatest: 0.5, 0.54, 0.413, 0.026? (a) 0.5 (b) 0.54 (c) 0.413 (d) 0.026
  5. 5.4.51 + 1.9 = ? (a) 6.51 (b) 6.31 (c) 4.7 (d) 6.41
  6. 6.What is the value of the digit 2 in 52.138? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  7. 7.What is the value of the digit 2 in 18.259? (a) 2 (b) 0.2 (c) 0.02 (d) 0.002
  8. 8.8.82 + 2.2 = ? (a) 11.12 (b) 9.04 (c) 10.92 (d) 11.02
  9. 9.4.17 + 2.9 = ? (a) 4.46 (b) 7.17 (c) 7.07 (d) 6.97
  10. 10.8.45 + 5.6 = ? (a) 13.95 (b) 14.15 (c) 9.01 (d) 14.05
  11. 11.9.91 + 5.1 = ? (a) 15.11 (b) 15.01 (c) 14.91 (d) 10.42
  12. 12.Which is the smallest: 0.711, 0.8, 0.85, 0.059? (a) 0.711 (b) 0.8 (c) 0.85 (d) 0.059
  13. 13.What is the value of the digit 8 in 59.783? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  14. 14.2.75 + 5.4 = ? (a) 8.15 (b) 3.29 (c) 8.05 (d) 8.25
  15. 15.6.78 + 9.9 = ? (a) 16.78 (b) 16.58 (c) 7.77 (d) 16.68
  16. 16.What is the value of the digit 8 in 13.846? (a) 0.8 (b) 8 (c) 0.08 (d) 0.008
  17. 17.6.98 + 5.8 = ? (a) 12.68 (b) 12.78 (c) 7.56 (d) 12.88
  18. 18.6.46 + 6.7 = ? (a) 13.16 (b) 7.13 (c) 13.26 (d) 13.06
  19. 19.What is the value of the digit 8 in 45.178? (a) 0.8 (b) 0.008 (c) 0.08 (d) 8
  20. 20.Which is the greatest: 0.6, 0.512, 0.68, 0.016? (a) 0.6 (b) 0.512 (c) 0.68 (d) 0.016
  21. 21.5.99 + 9.7 = ? (a) 15.79 (b) 15.59 (c) 6.96 (d) 15.69
  22. 22.What is the value of the digit 6 in 59.368? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  23. 23.What is the value of the digit 7 in 15.327? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  24. 24.Which is the greatest: 0.39, 0.029, 0.3, 0.218? (a) 0.39 (b) 0.029 (c) 0.3 (d) 0.218
  25. 25.Which is the smallest: 0.83, 0.031, 0.8, 0.746? (a) 0.83 (b) 0.031 (c) 0.8 (d) 0.746
  26. 26.3.11 + 1.3 = ? (a) 3.24 (b) 4.51 (c) 4.31 (d) 4.41
  27. 27.6.18 + 4.7 = ? (a) 10.78 (b) 10.98 (c) 6.65 (d) 10.88
  28. 28.Which is the smallest: 0.048, 0.6, 0.586, 0.69? (a) 0.048 (b) 0.6 (c) 0.586 (d) 0.69
  29. 29.Which is the smallest: 0.483, 0.52, 0.062, 0.5? (a) 0.483 (b) 0.52 (c) 0.062 (d) 0.5
  30. 30.4.56 + 8.8 = ? (a) 13.26 (b) 13.46 (c) 5.44 (d) 13.36
  31. 31.Which is the greatest: 0.218, 0.3, 0.049, 0.33? (a) 0.218 (b) 0.3 (c) 0.049 (d) 0.33
  32. 32.What is the value of the digit 4 in 51.742? (a) 0.4 (b) 0.04 (c) 0.004 (d) 4
  33. 33.What is the value of the digit 4 in 52.648? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  34. 34.Which is the greatest: 0.027, 0.2, 0.186, 0.28? (a) 0.027 (b) 0.2 (c) 0.186 (d) 0.28
  35. 35.Which is the greatest: 0.228, 0.3, 0.37, 0.024? (a) 0.228 (b) 0.3 (c) 0.37 (d) 0.024
  36. 36.2.22 + 4.1 = ? (a) 6.42 (b) 6.22 (c) 2.63 (d) 6.32
  37. 37.What is the value of the digit 8 in 28.563? (a) 8 (b) 0.08 (c) 80 (d) 0.8
  38. 38.What is the value of the digit 2 in 91.872? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  39. 39.Which is the smallest: 0.342, 0.4, 0.072, 0.48? (a) 0.342 (b) 0.4 (c) 0.072 (d) 0.48
  40. 40.What is the value of the digit 6 in 12.756? (a) 0.6 (b) 6 (c) 0.06 (d) 0.006

Answer key

  1. 0.3
  2. 11.16
  3. 0.073
  4. 0.54
  5. 6.41
  6. 2
  7. 0.2
  8. 11.02
  9. 7.07
  10. 14.05
  11. 15.01
  12. 0.059
  13. 0.08
  14. 8.15
  15. 16.68
  16. 0.8
  17. 12.78
  18. 13.16
  19. 0.008
  20. 0.68
  21. 15.69
  22. 0.06
  23. 0.007
  24. 0.39
  25. 0.031
  26. 4.41
  27. 10.88
  28. 0.048
  29. 0.062
  30. 13.36
  31. 0.33
  32. 0.04
  33. 0.04
  34. 0.28
  35. 0.37
  36. 6.32
  37. 8
  38. 0.002
  39. 0.072
  40. 0.006

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