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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 281 · 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: 0.011, 0.6, 0.68, 0.586? (a) 0.011 (b) 0.6 (c) 0.68 (d) 0.586
  2. 2.5.81 + 5.1 = ? (a) 10.91 (b) 6.32 (c) 11.01 (d) 10.81
  3. 3.What is the value of the digit 3 in 35.476? (a) 30 (b) 0.03 (c) 0.3 (d) 3
  4. 4.9.47 + 4.9 = ? (a) 14.37 (b) 14.47 (c) 14.27 (d) 9.96
  5. 5.Which is the smallest: 0.036, 0.6, 0.61, 0.556? (a) 0.036 (b) 0.6 (c) 0.61 (d) 0.556
  6. 6.7.06 + 2.8 = ? (a) 9.86 (b) 9.96 (c) 7.34 (d) 9.76
  7. 7.5.96 + 2.7 = ? (a) 8.56 (b) 8.66 (c) 8.76 (d) 6.23
  8. 8.1.14 + 6.7 = ? (a) 7.74 (b) 7.94 (c) 1.81 (d) 7.84
  9. 9.What is the value of the digit 6 in 69.458? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  10. 10.Which is the greatest: 0.4, 0.024, 0.395, 0.43? (a) 0.4 (b) 0.024 (c) 0.395 (d) 0.43
  11. 11.Which is the greatest: 0.174, 0.24, 0.2, 0.049? (a) 0.174 (b) 0.24 (c) 0.2 (d) 0.049
  12. 12.Which is the greatest: 0.637, 0.79, 0.7, 0.025? (a) 0.637 (b) 0.79 (c) 0.7 (d) 0.025
  13. 13.What is the value of the digit 7 in 51.487? (a) 0.007 (b) 0.07 (c) 7 (d) 0.7
  14. 14.What is the value of the digit 5 in 91.245? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  15. 15.3.53 + 2.9 = ? (a) 6.53 (b) 6.33 (c) 6.43 (d) 3.82
  16. 16.8.85 + 4.1 = ? (a) 12.95 (b) 12.85 (c) 13.05 (d) 9.26
  17. 17.What is the value of the digit 1 in 46.812? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  18. 18.9.35 + 1.8 = ? (a) 11.25 (b) 11.15 (c) 9.53 (d) 11.05
  19. 19.What is the value of the digit 3 in 17.356? (a) 0.03 (b) 0.3 (c) 3 (d) 0.003
  20. 20.Which is the greatest: 0.746, 0.82, 0.8, 0.013? (a) 0.746 (b) 0.82 (c) 0.8 (d) 0.013
  21. 21.3.12 + 4.1 = ? (a) 3.53 (b) 7.32 (c) 7.22 (d) 7.12
  22. 22.Which is the greatest: 0.512, 0.024, 0.64, 0.6? (a) 0.512 (b) 0.024 (c) 0.64 (d) 0.6
  23. 23.8.42 + 9.1 = ? (a) 9.33 (b) 17.62 (c) 17.52 (d) 17.42
  24. 24.What is the value of the digit 2 in 14.293? (a) 0.002 (b) 0.2 (c) 2 (d) 0.02
  25. 25.Which is the greatest: 0.484, 0.5, 0.57, 0.026? (a) 0.484 (b) 0.5 (c) 0.57 (d) 0.026
  26. 26.Which is the greatest: 0.058, 0.51, 0.5, 0.487? (a) 0.058 (b) 0.51 (c) 0.5 (d) 0.487
  27. 27.What is the value of the digit 1 in 62.417? (a) 0.01 (b) 1 (c) 0.1 (d) 0.001
  28. 28.9.39 + 8.7 = ? (a) 17.99 (b) 18.19 (c) 18.09 (d) 10.26
  29. 29.Which is the smallest: 0.258, 0.39, 0.3, 0.091? (a) 0.258 (b) 0.39 (c) 0.3 (d) 0.091
  30. 30.What is the value of the digit 1 in 21.943? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  31. 31.What is the value of the digit 2 in 27.583? (a) 0.2 (b) 2 (c) 0.02 (d) 20
  32. 32.9.59 + 2.9 = ? (a) 12.39 (b) 12.49 (c) 9.88 (d) 12.59
  33. 33.8.44 + 5.7 = ? (a) 9.01 (b) 14.14 (c) 14.24 (d) 14.04
  34. 34.What is the value of the digit 8 in 92.853? (a) 0.08 (b) 0.008 (c) 8 (d) 0.8
  35. 35.Which is the greatest: 0.281, 0.34, 0.3, 0.047? (a) 0.281 (b) 0.34 (c) 0.3 (d) 0.047
  36. 36.Which is the greatest: 0.3, 0.297, 0.37, 0.044? (a) 0.3 (b) 0.297 (c) 0.37 (d) 0.044
  37. 37.2.87 + 6.1 = ? (a) 8.87 (b) 9.07 (c) 8.97 (d) 3.48
  38. 38.9.68 + 8.6 = ? (a) 18.38 (b) 18.28 (c) 18.18 (d) 10.54
  39. 39.6.18 + 9.5 = ? (a) 15.68 (b) 7.13 (c) 15.58 (d) 15.78
  40. 40.Which is the greatest: 0.361, 0.014, 0.4, 0.41? (a) 0.361 (b) 0.014 (c) 0.4 (d) 0.41

Answer key

  1. 0.68
  2. 10.91
  3. 30
  4. 14.37
  5. 0.036
  6. 9.86
  7. 8.66
  8. 7.84
  9. 60
  10. 0.43
  11. 0.24
  12. 0.79
  13. 0.007
  14. 0.005
  15. 6.43
  16. 12.95
  17. 0.01
  18. 11.15
  19. 0.3
  20. 0.82
  21. 7.22
  22. 0.64
  23. 17.52
  24. 0.2
  25. 0.57
  26. 0.51
  27. 0.01
  28. 18.09
  29. 0.091
  30. 1
  31. 20
  32. 12.49
  33. 14.14
  34. 0.8
  35. 0.34
  36. 0.37
  37. 8.97
  38. 18.28
  39. 15.68
  40. 0.41

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