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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 36 · 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. 1.5.75 + 8.4 = ? (a) 6.59 (b) 14.15 (c) 14.25 (d) 14.05
  2. 2.What is the value of the digit 5 in 48.573? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  3. 3.Which is the greatest: 0.2, 0.069, 0.26, 0.151? (a) 0.2 (b) 0.069 (c) 0.26 (d) 0.151
  4. 4.Which is the greatest: 0.091, 0.57, 0.5, 0.411? (a) 0.091 (b) 0.57 (c) 0.5 (d) 0.411
  5. 5.What is the value of the digit 6 in 71.623? (a) 0.06 (b) 6 (c) 0.006 (d) 0.6
  6. 6.8.18 + 3.9 = ? (a) 11.98 (b) 12.08 (c) 12.18 (d) 8.57
  7. 7.6.94 + 1.9 = ? (a) 8.74 (b) 8.94 (c) 8.84 (d) 7.13
  8. 8.What is the value of the digit 3 in 12.593? (a) 0.3 (b) 0.03 (c) 3 (d) 0.003
  9. 9.7.83 + 1.1 = ? (a) 9.03 (b) 8.83 (c) 7.94 (d) 8.93
  10. 10.What is the value of the digit 5 in 61.385? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  11. 11.Which is the smallest: 0.211, 0.34, 0.015, 0.3? (a) 0.211 (b) 0.34 (c) 0.015 (d) 0.3
  12. 12.Which is the greatest: 0.421, 0.018, 0.52, 0.5? (a) 0.421 (b) 0.018 (c) 0.52 (d) 0.5
  13. 13.Which is the greatest: 0.26, 0.069, 0.177, 0.2? (a) 0.26 (b) 0.069 (c) 0.177 (d) 0.2
  14. 14.Which is the smallest: 0.8, 0.027, 0.736, 0.88? (a) 0.8 (b) 0.027 (c) 0.736 (d) 0.88
  15. 15.8.33 + 6.7 = ? (a) 14.93 (b) 15.03 (c) 9 (d) 15.13
  16. 16.4.13 + 8.9 = ? (a) 12.93 (b) 13.13 (c) 5.02 (d) 13.03
  17. 17.Which is the greatest: 0.48, 0.013, 0.356, 0.4? (a) 0.48 (b) 0.013 (c) 0.356 (d) 0.4
  18. 18.9.55 + 2.4 = ? (a) 11.85 (b) 9.79 (c) 12.05 (d) 11.95
  19. 19.Which is the greatest: 0.215, 0.033, 0.3, 0.31? (a) 0.215 (b) 0.033 (c) 0.3 (d) 0.31
  20. 20.What is the value of the digit 8 in 75.834? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  21. 21.8.85 + 1.6 = ? (a) 10.55 (b) 10.35 (c) 10.45 (d) 9.01
  22. 22.Which is the greatest: 0.013, 0.344, 0.43, 0.4? (a) 0.013 (b) 0.344 (c) 0.43 (d) 0.4
  23. 23.6.53 + 2.3 = ? (a) 8.93 (b) 8.83 (c) 6.76 (d) 8.73
  24. 24.6.35 + 6.9 = ? (a) 13.15 (b) 7.04 (c) 13.35 (d) 13.25
  25. 25.Which is the smallest: 0.512, 0.073, 0.6, 0.68? (a) 0.512 (b) 0.073 (c) 0.6 (d) 0.68
  26. 26.What is the value of the digit 1 in 82.713? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  27. 27.Which is the greatest: 0.33, 0.276, 0.3, 0.061? (a) 0.33 (b) 0.276 (c) 0.3 (d) 0.061
  28. 28.1.67 + 8.3 = ? (a) 2.5 (b) 10.07 (c) 9.97 (d) 9.87
  29. 29.1.75 + 8.1 = ? (a) 9.95 (b) 9.75 (c) 9.85 (d) 2.56
  30. 30.7.29 + 8.5 = ? (a) 15.69 (b) 8.14 (c) 15.79 (d) 15.89
  31. 31.Which is the greatest: 0.768, 0.022, 0.8, 0.83? (a) 0.768 (b) 0.022 (c) 0.8 (d) 0.83
  32. 32.What is the value of the digit 4 in 69.248? (a) 0.04 (b) 0.4 (c) 0.004 (d) 4
  33. 33.What is the value of the digit 2 in 51.423? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  34. 34.Which is the smallest: 0.5, 0.035, 0.493, 0.54? (a) 0.5 (b) 0.035 (c) 0.493 (d) 0.54
  35. 35.What is the value of the digit 3 in 35.892? (a) 3 (b) 0.03 (c) 0.3 (d) 30
  36. 36.Which is the smallest: 0.057, 0.26, 0.2, 0.185? (a) 0.057 (b) 0.26 (c) 0.2 (d) 0.185
  37. 37.2.75 + 2.3 = ? (a) 2.98 (b) 4.95 (c) 5.05 (d) 5.15
  38. 38.What is the value of the digit 6 in 69.834? (a) 0.6 (b) 6 (c) 0.06 (d) 60
  39. 39.What is the value of the digit 1 in 81.965? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  40. 40.1.01 + 4.1 = ? (a) 5.01 (b) 5.21 (c) 1.42 (d) 5.11

Answer key

  1. 14.15
  2. 0.5
  3. 0.26
  4. 0.57
  5. 0.6
  6. 12.08
  7. 8.84
  8. 0.003
  9. 8.93
  10. 0.005
  11. 0.015
  12. 0.52
  13. 0.26
  14. 0.027
  15. 15.03
  16. 13.03
  17. 0.48
  18. 11.95
  19. 0.31
  20. 0.8
  21. 10.45
  22. 0.43
  23. 8.83
  24. 13.25
  25. 0.073
  26. 0.01
  27. 0.33
  28. 9.97
  29. 9.85
  30. 15.79
  31. 0.83
  32. 0.04
  33. 0.02
  34. 0.035
  35. 30
  36. 0.057
  37. 5.05
  38. 60
  39. 1
  40. 5.11

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