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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 333 · 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 32.654? (a) 30 (b) 0.3 (c) 3 (d) 0.03
  2. 2.Which is the greatest: 0.78, 0.045, 0.7, 0.689? (a) 0.78 (b) 0.045 (c) 0.7 (d) 0.689
  3. 3.Which is the greatest: 0.62, 0.024, 0.6, 0.528? (a) 0.62 (b) 0.024 (c) 0.6 (d) 0.528
  4. 4.Which is the smallest: 0.7, 0.052, 0.664, 0.71? (a) 0.7 (b) 0.052 (c) 0.664 (d) 0.71
  5. 5.Which is the greatest: 0.6, 0.021, 0.64, 0.591? (a) 0.6 (b) 0.021 (c) 0.64 (d) 0.591
  6. 6.Which is the greatest: 0.61, 0.525, 0.029, 0.6? (a) 0.61 (b) 0.525 (c) 0.029 (d) 0.6
  7. 7.What is the value of the digit 6 in 86.743? (a) 0.6 (b) 60 (c) 0.06 (d) 6
  8. 8.Which is the greatest: 0.86, 0.8, 0.744, 0.024? (a) 0.86 (b) 0.8 (c) 0.744 (d) 0.024
  9. 9.5.84 + 3.1 = ? (a) 8.94 (b) 9.04 (c) 6.15 (d) 8.84
  10. 10.Which is the smallest: 0.057, 0.625, 0.7, 0.78? (a) 0.057 (b) 0.625 (c) 0.7 (d) 0.78
  11. 11.Which is the greatest: 0.27, 0.098, 0.2, 0.169? (a) 0.27 (b) 0.098 (c) 0.2 (d) 0.169
  12. 12.Which is the smallest: 0.021, 0.7, 0.72, 0.624? (a) 0.021 (b) 0.7 (c) 0.72 (d) 0.624
  13. 13.Which is the smallest: 0.39, 0.272, 0.059, 0.3? (a) 0.39 (b) 0.272 (c) 0.059 (d) 0.3
  14. 14.What is the value of the digit 3 in 37.421? (a) 3 (b) 0.03 (c) 0.3 (d) 30
  15. 15.What is the value of the digit 4 in 31.645? (a) 0.4 (b) 4 (c) 0.004 (d) 0.04
  16. 16.7.77 + 1.6 = ? (a) 7.93 (b) 9.47 (c) 9.27 (d) 9.37
  17. 17.What is the value of the digit 5 in 29.485? (a) 0.05 (b) 0.5 (c) 0.005 (d) 5
  18. 18.7.95 + 7.7 = ? (a) 15.55 (b) 15.75 (c) 8.72 (d) 15.65
  19. 19.What is the value of the digit 8 in 42.871? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  20. 20.What is the value of the digit 3 in 41.936? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  21. 21.What is the value of the digit 1 in 12.587? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  22. 22.3.15 + 6.5 = ? (a) 9.65 (b) 9.75 (c) 9.55 (d) 3.8
  23. 23.6.95 + 2.1 = ? (a) 7.16 (b) 9.15 (c) 8.95 (d) 9.05
  24. 24.Which is the greatest: 0.099, 0.61, 0.514, 0.6? (a) 0.099 (b) 0.61 (c) 0.514 (d) 0.6
  25. 25.Which is the greatest: 0.021, 0.123, 0.21, 0.2? (a) 0.021 (b) 0.123 (c) 0.21 (d) 0.2
  26. 26.What is the value of the digit 7 in 31.785? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  27. 27.What is the value of the digit 2 in 16.283? (a) 0.02 (b) 2 (c) 0.2 (d) 0.002
  28. 28.Which is the smallest: 0.7, 0.028, 0.641, 0.77? (a) 0.7 (b) 0.028 (c) 0.641 (d) 0.77
  29. 29.What is the value of the digit 4 in 54.812? (a) 40 (b) 0.4 (c) 4 (d) 0.04
  30. 30.What is the value of the digit 7 in 79.186? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  31. 31.Which is the smallest: 0.44, 0.011, 0.4, 0.334? (a) 0.44 (b) 0.011 (c) 0.4 (d) 0.334
  32. 32.What is the value of the digit 3 in 67.831? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  33. 33.7.39 + 6.9 = ? (a) 8.08 (b) 14.39 (c) 14.19 (d) 14.29
  34. 34.What is the value of the digit 1 in 31.846? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  35. 35.7.25 + 3.2 = ? (a) 7.57 (b) 10.45 (c) 10.55 (d) 10.35
  36. 36.8.84 + 4.5 = ? (a) 13.24 (b) 13.34 (c) 9.29 (d) 13.44
  37. 37.What is the value of the digit 3 in 25.837? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  38. 38.Which is the smallest: 0.55, 0.057, 0.465, 0.5? (a) 0.55 (b) 0.057 (c) 0.465 (d) 0.5
  39. 39.What is the value of the digit 9 in 12.937? (a) 0.09 (b) 0.009 (c) 9 (d) 0.9
  40. 40.What is the value of the digit 9 in 63.419? (a) 0.9 (b) 9 (c) 0.009 (d) 0.09

Answer key

  1. 30
  2. 0.78
  3. 0.62
  4. 0.052
  5. 0.64
  6. 0.61
  7. 6
  8. 0.86
  9. 8.94
  10. 0.057
  11. 0.27
  12. 0.021
  13. 0.059
  14. 30
  15. 0.04
  16. 9.37
  17. 0.005
  18. 15.65
  19. 0.8
  20. 0.03
  21. 10
  22. 9.65
  23. 9.05
  24. 0.61
  25. 0.21
  26. 0.7
  27. 0.2
  28. 0.028
  29. 4
  30. 70
  31. 0.011
  32. 0.03
  33. 14.29
  34. 1
  35. 10.45
  36. 13.34
  37. 0.03
  38. 0.057
  39. 0.9
  40. 0.009

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