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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 531 · 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 6 in 62.815? (a) 60 (b) 0.06 (c) 6 (d) 0.6
  2. 2.6.21 + 6.2 = ? (a) 6.83 (b) 12.31 (c) 12.51 (d) 12.41
  3. 3.4.93 + 9.3 = ? (a) 14.13 (b) 14.33 (c) 14.23 (d) 5.86
  4. 4.1.16 + 4.1 = ? (a) 5.26 (b) 1.57 (c) 5.36 (d) 5.16
  5. 5.8.28 + 2.1 = ? (a) 10.38 (b) 8.49 (c) 10.28 (d) 10.48
  6. 6.Which is the smallest: 0.83, 0.017, 0.737, 0.8? (a) 0.83 (b) 0.017 (c) 0.737 (d) 0.8
  7. 7.Which is the smallest: 0.4, 0.066, 0.45, 0.334? (a) 0.4 (b) 0.066 (c) 0.45 (d) 0.334
  8. 8.What is the value of the digit 8 in 48.159? (a) 80 (b) 0.08 (c) 8 (d) 0.8
  9. 9.Which is the greatest: 0.21, 0.176, 0.079, 0.2? (a) 0.21 (b) 0.176 (c) 0.079 (d) 0.2
  10. 10.What is the value of the digit 1 in 63.841? (a) 0.001 (b) 1 (c) 0.1 (d) 0.01
  11. 11.2.15 + 6.6 = ? (a) 8.75 (b) 2.81 (c) 8.65 (d) 8.85
  12. 12.8.92 + 1.2 = ? (a) 10.22 (b) 9.04 (c) 10.12 (d) 10.02
  13. 13.Which is the greatest: 0.2, 0.24, 0.095, 0.144? (a) 0.2 (b) 0.24 (c) 0.095 (d) 0.144
  14. 14.9.51 + 5.7 = ? (a) 10.08 (b) 15.21 (c) 15.11 (d) 15.31
  15. 15.What is the value of the digit 2 in 47.293? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  16. 16.7.94 + 6.8 = ? (a) 14.64 (b) 14.74 (c) 14.84 (d) 8.62
  17. 17.2.61 + 3.9 = ? (a) 6.41 (b) 3 (c) 6.51 (d) 6.61
  18. 18.1.97 + 2.5 = ? (a) 4.37 (b) 2.22 (c) 4.57 (d) 4.47
  19. 19.5.72 + 3.4 = ? (a) 9.02 (b) 6.06 (c) 9.12 (d) 9.22
  20. 20.Which is the smallest: 0.317, 0.4, 0.45, 0.054? (a) 0.317 (b) 0.4 (c) 0.45 (d) 0.054
  21. 21.5.57 + 6.8 = ? (a) 12.27 (b) 12.47 (c) 6.25 (d) 12.37
  22. 22.Which is the greatest: 0.42, 0.052, 0.4, 0.375? (a) 0.42 (b) 0.052 (c) 0.4 (d) 0.375
  23. 23.Which is the smallest: 0.027, 0.485, 0.5, 0.55? (a) 0.027 (b) 0.485 (c) 0.5 (d) 0.55
  24. 24.Which is the smallest: 0.59, 0.494, 0.062, 0.5? (a) 0.59 (b) 0.494 (c) 0.062 (d) 0.5
  25. 25.Which is the greatest: 0.095, 0.25, 0.191, 0.2? (a) 0.095 (b) 0.25 (c) 0.191 (d) 0.2
  26. 26.What is the value of the digit 6 in 69.715? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  27. 27.Which is the greatest: 0.54, 0.413, 0.073, 0.5? (a) 0.54 (b) 0.413 (c) 0.073 (d) 0.5
  28. 28.Which is the greatest: 0.639, 0.76, 0.038, 0.7? (a) 0.639 (b) 0.76 (c) 0.038 (d) 0.7
  29. 29.What is the value of the digit 5 in 12.358? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  30. 30.What is the value of the digit 5 in 97.485? (a) 0.5 (b) 0.05 (c) 5 (d) 0.005
  31. 31.What is the value of the digit 5 in 85.713? (a) 0.5 (b) 0.05 (c) 5 (d) 50
  32. 32.9.36 + 1.5 = ? (a) 10.96 (b) 9.51 (c) 10.76 (d) 10.86
  33. 33.What is the value of the digit 7 in 28.174? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  34. 34.What is the value of the digit 3 in 32.946? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  35. 35.What is the value of the digit 7 in 83.274? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  36. 36.4.18 + 6.8 = ? (a) 4.86 (b) 11.08 (c) 10.88 (d) 10.98
  37. 37.Which is the greatest: 0.547, 0.069, 0.6, 0.66? (a) 0.547 (b) 0.069 (c) 0.6 (d) 0.66
  38. 38.What is the value of the digit 1 in 47.521? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  39. 39.Which is the smallest: 0.72, 0.021, 0.7, 0.685? (a) 0.72 (b) 0.021 (c) 0.7 (d) 0.685
  40. 40.Which is the greatest: 0.293, 0.3, 0.32, 0.027? (a) 0.293 (b) 0.3 (c) 0.32 (d) 0.027

Answer key

  1. 60
  2. 12.41
  3. 14.23
  4. 5.26
  5. 10.38
  6. 0.017
  7. 0.066
  8. 8
  9. 0.21
  10. 0.001
  11. 8.75
  12. 10.12
  13. 0.24
  14. 15.21
  15. 0.2
  16. 14.74
  17. 6.51
  18. 4.47
  19. 9.12
  20. 0.054
  21. 12.37
  22. 0.42
  23. 0.027
  24. 0.062
  25. 0.25
  26. 60
  27. 0.54
  28. 0.76
  29. 0.05
  30. 0.005
  31. 5
  32. 10.86
  33. 0.07
  34. 30
  35. 0.07
  36. 10.98
  37. 0.66
  38. 0.001
  39. 0.021
  40. 0.32

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