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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 49 · 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. 1.5.74 + 2.2 = ? (a) 5.96 (b) 7.84 (c) 7.94 (d) 8.04
  2. 2.What is the value of the digit 6 in 96.324? (a) 6 (b) 0.06 (c) 0.6 (d) 60
  3. 3.What is the value of the digit 2 in 54.296? (a) 2 (b) 0.002 (c) 0.02 (d) 0.2
  4. 4.Which is the greatest: 0.6, 0.564, 0.044, 0.69? (a) 0.6 (b) 0.564 (c) 0.044 (d) 0.69
  5. 5.Which is the smallest: 0.085, 0.8, 0.81, 0.712? (a) 0.085 (b) 0.8 (c) 0.81 (d) 0.712
  6. 6.2.22 + 3.1 = ? (a) 2.53 (b) 5.22 (c) 5.42 (d) 5.32
  7. 7.What is the value of the digit 8 in 87.164? (a) 0.8 (b) 0.08 (c) 8 (d) 80
  8. 8.What is the value of the digit 3 in 65.239? (a) 0.3 (b) 0.003 (c) 0.03 (d) 3
  9. 9.7.67 + 5.9 = ? (a) 13.47 (b) 13.67 (c) 8.26 (d) 13.57
  10. 10.5.41 + 6.6 = ? (a) 12.11 (b) 6.07 (c) 11.91 (d) 12.01
  11. 11.Which is the smallest: 0.262, 0.36, 0.3, 0.073? (a) 0.262 (b) 0.36 (c) 0.3 (d) 0.073
  12. 12.Which is the greatest: 0.69, 0.087, 0.6, 0.553? (a) 0.69 (b) 0.087 (c) 0.6 (d) 0.553
  13. 13.7.61 + 7.9 = ? (a) 15.51 (b) 8.4 (c) 15.61 (d) 15.41
  14. 14.Which is the smallest: 0.222, 0.3, 0.34, 0.054? (a) 0.222 (b) 0.3 (c) 0.34 (d) 0.054
  15. 15.4.51 + 5.5 = ? (a) 10.11 (b) 10.01 (c) 9.91 (d) 5.06
  16. 16.2.51 + 5.2 = ? (a) 7.71 (b) 7.81 (c) 7.61 (d) 3.03
  17. 17.What is the value of the digit 8 in 38.641? (a) 0.08 (b) 0.8 (c) 80 (d) 8
  18. 18.2.08 + 2.7 = ? (a) 4.78 (b) 4.88 (c) 2.35 (d) 4.68
  19. 19.What is the value of the digit 5 in 14.735? (a) 0.005 (b) 0.05 (c) 0.5 (d) 5
  20. 20.Which is the greatest: 0.2, 0.194, 0.037, 0.27? (a) 0.2 (b) 0.194 (c) 0.037 (d) 0.27
  21. 21.What is the value of the digit 5 in 67.145? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  22. 22.Which is the greatest: 0.044, 0.657, 0.7, 0.75? (a) 0.044 (b) 0.657 (c) 0.7 (d) 0.75
  23. 23.5.92 + 7.9 = ? (a) 13.72 (b) 6.71 (c) 13.82 (d) 13.92
  24. 24.1.37 + 8.8 = ? (a) 10.17 (b) 2.25 (c) 10.27 (d) 10.07
  25. 25.What is the value of the digit 5 in 23.845? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  26. 26.1.24 + 5.3 = ? (a) 6.64 (b) 1.77 (c) 6.54 (d) 6.44
  27. 27.What is the value of the digit 1 in 12.786? (a) 1 (b) 0.01 (c) 0.1 (d) 10
  28. 28.5.25 + 9.7 = ? (a) 14.85 (b) 14.95 (c) 15.05 (d) 6.22
  29. 29.What is the value of the digit 3 in 92.634? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  30. 30.9.84 + 8.1 = ? (a) 17.84 (b) 17.94 (c) 18.04 (d) 10.65
  31. 31.What is the value of the digit 4 in 49.573? (a) 0.04 (b) 40 (c) 4 (d) 0.4
  32. 32.7.35 + 2.3 = ? (a) 9.55 (b) 7.58 (c) 9.75 (d) 9.65
  33. 33.What is the value of the digit 8 in 87.514? (a) 0.8 (b) 80 (c) 8 (d) 0.08
  34. 34.3.64 + 2.4 = ? (a) 6.14 (b) 3.88 (c) 6.04 (d) 5.94
  35. 35.9.48 + 7.3 = ? (a) 16.68 (b) 16.88 (c) 16.78 (d) 10.21
  36. 36.What is the value of the digit 9 in 19.874? (a) 0.09 (b) 0.9 (c) 9 (d) 90
  37. 37.What is the value of the digit 3 in 91.463? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  38. 38.What is the value of the digit 9 in 81.964? (a) 0.009 (b) 9 (c) 0.9 (d) 0.09
  39. 39.What is the value of the digit 3 in 32.156? (a) 30 (b) 0.03 (c) 3 (d) 0.3
  40. 40.Which is the greatest: 0.634, 0.054, 0.77, 0.7? (a) 0.634 (b) 0.054 (c) 0.77 (d) 0.7

Answer key

  1. 7.94
  2. 6
  3. 0.2
  4. 0.69
  5. 0.085
  6. 5.32
  7. 80
  8. 0.03
  9. 13.57
  10. 12.01
  11. 0.073
  12. 0.69
  13. 15.51
  14. 0.054
  15. 10.01
  16. 7.71
  17. 8
  18. 4.78
  19. 0.005
  20. 0.27
  21. 0.005
  22. 0.75
  23. 13.82
  24. 10.17
  25. 0.005
  26. 6.54
  27. 10
  28. 14.95
  29. 0.03
  30. 17.94
  31. 40
  32. 9.65
  33. 80
  34. 6.04
  35. 16.78
  36. 9
  37. 0.003
  38. 0.9
  39. 30
  40. 0.77

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