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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 780 · 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 2 in 81.426? (a) 0.002 (b) 2 (c) 0.02 (d) 0.2
  2. 2.1.53 + 5.9 = ? (a) 7.43 (b) 2.12 (c) 7.33 (d) 7.53
  3. 3.5.42 + 2.7 = ? (a) 5.69 (b) 8.22 (c) 8.02 (d) 8.12
  4. 4.What is the value of the digit 6 in 84.769? (a) 6 (b) 0.6 (c) 0.06 (d) 0.006
  5. 5.What is the value of the digit 1 in 59.416? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  6. 6.1.86 + 6.4 = ? (a) 8.36 (b) 8.26 (c) 2.5 (d) 8.16
  7. 7.What is the value of the digit 1 in 82.193? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  8. 8.Which is the smallest: 0.758, 0.042, 0.8, 0.84? (a) 0.758 (b) 0.042 (c) 0.8 (d) 0.84
  9. 9.1.93 + 4.9 = ? (a) 6.83 (b) 2.42 (c) 6.73 (d) 6.93
  10. 10.7.43 + 8.2 = ? (a) 8.25 (b) 15.63 (c) 15.73 (d) 15.53
  11. 11.Which is the smallest: 0.024, 0.8, 0.797, 0.86? (a) 0.024 (b) 0.8 (c) 0.797 (d) 0.86
  12. 12.What is the value of the digit 7 in 74.195? (a) 7 (b) 0.07 (c) 70 (d) 0.7
  13. 13.6.63 + 4.5 = ? (a) 7.08 (b) 11.03 (c) 11.23 (d) 11.13
  14. 14.Which is the smallest: 0.639, 0.78, 0.7, 0.023? (a) 0.639 (b) 0.78 (c) 0.7 (d) 0.023
  15. 15.Which is the smallest: 0.61, 0.046, 0.585, 0.6? (a) 0.61 (b) 0.046 (c) 0.585 (d) 0.6
  16. 16.Which is the smallest: 0.31, 0.049, 0.3, 0.232? (a) 0.31 (b) 0.049 (c) 0.3 (d) 0.232
  17. 17.What is the value of the digit 1 in 17.829? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  18. 18.3.13 + 9.4 = ? (a) 12.63 (b) 12.53 (c) 12.43 (d) 4.07
  19. 19.What is the value of the digit 1 in 85.761? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  20. 20.Which is the smallest: 0.267, 0.3, 0.053, 0.31? (a) 0.267 (b) 0.3 (c) 0.053 (d) 0.31
  21. 21.What is the value of the digit 5 in 83.154? (a) 0.005 (b) 0.5 (c) 5 (d) 0.05
  22. 22.5.03 + 6.7 = ? (a) 11.63 (b) 5.7 (c) 11.73 (d) 11.83
  23. 23.What is the value of the digit 1 in 74.219? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  24. 24.8.08 + 7.2 = ? (a) 8.8 (b) 15.38 (c) 15.28 (d) 15.18
  25. 25.Which is the smallest: 0.7, 0.627, 0.74, 0.053? (a) 0.7 (b) 0.627 (c) 0.74 (d) 0.053
  26. 26.Which is the greatest: 0.036, 0.365, 0.4, 0.43? (a) 0.036 (b) 0.365 (c) 0.4 (d) 0.43
  27. 27.What is the value of the digit 8 in 38.219? (a) 0.8 (b) 80 (c) 0.08 (d) 8
  28. 28.8.29 + 3.4 = ? (a) 11.79 (b) 8.63 (c) 11.69 (d) 11.59
  29. 29.What is the value of the digit 1 in 34.619? (a) 0.001 (b) 0.1 (c) 0.01 (d) 1
  30. 30.7.13 + 9.7 = ? (a) 16.83 (b) 16.93 (c) 16.73 (d) 8.1
  31. 31.What is the value of the digit 7 in 17.462? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  32. 32.Which is the smallest: 0.72, 0.096, 0.682, 0.7? (a) 0.72 (b) 0.096 (c) 0.682 (d) 0.7
  33. 33.What is the value of the digit 5 in 59.614? (a) 5 (b) 0.05 (c) 0.5 (d) 50
  34. 34.What is the value of the digit 9 in 71.892? (a) 0.009 (b) 0.09 (c) 9 (d) 0.9
  35. 35.4.08 + 9.2 = ? (a) 13.38 (b) 5 (c) 13.28 (d) 13.18
  36. 36.5.35 + 5.2 = ? (a) 10.55 (b) 5.87 (c) 10.45 (d) 10.65
  37. 37.Which is the smallest: 0.31, 0.3, 0.082, 0.262? (a) 0.31 (b) 0.3 (c) 0.082 (d) 0.262
  38. 38.4.16 + 2.7 = ? (a) 6.96 (b) 6.76 (c) 4.43 (d) 6.86
  39. 39.9.87 + 4.6 = ? (a) 14.47 (b) 10.33 (c) 14.57 (d) 14.37
  40. 40.What is the value of the digit 6 in 29.631? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6

Answer key

  1. 0.02
  2. 7.43
  3. 8.12
  4. 0.06
  5. 0.01
  6. 8.26
  7. 0.1
  8. 0.042
  9. 6.83
  10. 15.63
  11. 0.024
  12. 70
  13. 11.13
  14. 0.023
  15. 0.046
  16. 0.049
  17. 10
  18. 12.53
  19. 0.001
  20. 0.053
  21. 0.05
  22. 11.73
  23. 0.01
  24. 15.28
  25. 0.053
  26. 0.43
  27. 8
  28. 11.69
  29. 0.01
  30. 16.83
  31. 7
  32. 0.096
  33. 50
  34. 0.09
  35. 13.28
  36. 10.55
  37. 0.082
  38. 6.86
  39. 14.47
  40. 0.6

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