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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 731 · 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.Which is the greatest: 0.2, 0.029, 0.21, 0.198? (a) 0.2 (b) 0.029 (c) 0.21 (d) 0.198
  2. 2.Which is the greatest: 0.88, 0.047, 0.8, 0.787? (a) 0.88 (b) 0.047 (c) 0.8 (d) 0.787
  3. 3.7.83 + 8.6 = ? (a) 16.33 (b) 16.53 (c) 16.43 (d) 8.69
  4. 4.What is the value of the digit 6 in 96.184? (a) 6 (b) 60 (c) 0.6 (d) 0.06
  5. 5.5.97 + 2.1 = ? (a) 6.18 (b) 7.97 (c) 8.07 (d) 8.17
  6. 6.What is the value of the digit 3 in 54.392? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  7. 7.Which is the smallest: 0.47, 0.013, 0.388, 0.4? (a) 0.47 (b) 0.013 (c) 0.388 (d) 0.4
  8. 8.9.04 + 4.3 = ? (a) 13.24 (b) 13.44 (c) 13.34 (d) 9.47
  9. 9.5.97 + 3.8 = ? (a) 6.35 (b) 9.67 (c) 9.77 (d) 9.87
  10. 10.What is the value of the digit 5 in 76.159? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  11. 11.9.66 + 2.3 = ? (a) 9.89 (b) 11.96 (c) 12.06 (d) 11.86
  12. 12.Which is the greatest: 0.083, 0.371, 0.48, 0.4? (a) 0.083 (b) 0.371 (c) 0.48 (d) 0.4
  13. 13.7.48 + 7.3 = ? (a) 14.78 (b) 8.21 (c) 14.68 (d) 14.88
  14. 14.What is the value of the digit 9 in 24.719? (a) 0.009 (b) 9 (c) 0.9 (d) 0.09
  15. 15.Which is the greatest: 0.329, 0.48, 0.4, 0.052? (a) 0.329 (b) 0.48 (c) 0.4 (d) 0.052
  16. 16.3.32 + 3.6 = ? (a) 3.68 (b) 7.02 (c) 6.92 (d) 6.82
  17. 17.What is the value of the digit 5 in 41.579? (a) 0.005 (b) 0.5 (c) 5 (d) 0.05
  18. 18.Which is the smallest: 0.576, 0.044, 0.63, 0.6? (a) 0.576 (b) 0.044 (c) 0.63 (d) 0.6
  19. 19.What is the value of the digit 8 in 68.312? (a) 8 (b) 80 (c) 0.08 (d) 0.8
  20. 20.9.28 + 8.9 = ? (a) 18.08 (b) 10.17 (c) 18.18 (d) 18.28
  21. 21.7.52 + 3.4 = ? (a) 7.86 (b) 10.82 (c) 10.92 (d) 11.02
  22. 22.What is the value of the digit 6 in 35.162? (a) 0.06 (b) 0.6 (c) 0.006 (d) 6
  23. 23.4.88 + 6.4 = ? (a) 5.52 (b) 11.28 (c) 11.18 (d) 11.38
  24. 24.Which is the smallest: 0.32, 0.3, 0.283, 0.097? (a) 0.32 (b) 0.3 (c) 0.283 (d) 0.097
  25. 25.5.91 + 6.2 = ? (a) 12.01 (b) 12.21 (c) 12.11 (d) 6.53
  26. 26.3.58 + 6.2 = ? (a) 9.78 (b) 9.68 (c) 4.2 (d) 9.88
  27. 27.5.75 + 6.7 = ? (a) 12.35 (b) 12.45 (c) 6.42 (d) 12.55
  28. 28.Which is the greatest: 0.623, 0.062, 0.76, 0.7? (a) 0.623 (b) 0.062 (c) 0.76 (d) 0.7
  29. 29.Which is the greatest: 0.081, 0.247, 0.3, 0.34? (a) 0.081 (b) 0.247 (c) 0.3 (d) 0.34
  30. 30.3.82 + 8.1 = ? (a) 11.82 (b) 11.92 (c) 12.02 (d) 4.63
  31. 31.Which is the greatest: 0.88, 0.8, 0.752, 0.079? (a) 0.88 (b) 0.8 (c) 0.752 (d) 0.079
  32. 32.What is the value of the digit 3 in 76.583? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  33. 33.6.45 + 4.5 = ? (a) 6.9 (b) 10.95 (c) 11.05 (d) 10.85
  34. 34.5.81 + 2.1 = ? (a) 7.91 (b) 8.01 (c) 7.81 (d) 6.02
  35. 35.Which is the greatest: 0.753, 0.8, 0.85, 0.092? (a) 0.753 (b) 0.8 (c) 0.85 (d) 0.092
  36. 36.8.19 + 2.9 = ? (a) 11.19 (b) 8.48 (c) 10.99 (d) 11.09
  37. 37.Which is the greatest: 0.4, 0.41, 0.087, 0.336? (a) 0.4 (b) 0.41 (c) 0.087 (d) 0.336
  38. 38.Which is the smallest: 0.8, 0.049, 0.84, 0.735? (a) 0.8 (b) 0.049 (c) 0.84 (d) 0.735
  39. 39.What is the value of the digit 7 in 86.715? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  40. 40.What is the value of the digit 3 in 58.932? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003

Answer key

  1. 0.21
  2. 0.88
  3. 16.43
  4. 6
  5. 8.07
  6. 0.3
  7. 0.013
  8. 13.34
  9. 9.77
  10. 0.05
  11. 11.96
  12. 0.48
  13. 14.78
  14. 0.009
  15. 0.48
  16. 6.92
  17. 0.5
  18. 0.044
  19. 8
  20. 18.18
  21. 10.92
  22. 0.06
  23. 11.28
  24. 0.097
  25. 12.11
  26. 9.78
  27. 12.45
  28. 0.76
  29. 0.34
  30. 11.92
  31. 0.88
  32. 0.003
  33. 10.95
  34. 7.91
  35. 0.85
  36. 11.09
  37. 0.41
  38. 0.049
  39. 0.7
  40. 0.03

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