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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 187 · 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 9 in 41.972? (a) 0.009 (b) 9 (c) 0.09 (d) 0.9
  2. 2.7.93 + 9.8 = ? (a) 17.63 (b) 8.91 (c) 17.83 (d) 17.73
  3. 3.6.56 + 8.5 = ? (a) 15.16 (b) 7.41 (c) 15.06 (d) 14.96
  4. 4.What is the value of the digit 6 in 21.674? (a) 6 (b) 0.06 (c) 0.006 (d) 0.6
  5. 5.Which is the smallest: 0.36, 0.088, 0.224, 0.3? (a) 0.36 (b) 0.088 (c) 0.224 (d) 0.3
  6. 6.Which is the greatest: 0.079, 0.62, 0.538, 0.6? (a) 0.079 (b) 0.62 (c) 0.538 (d) 0.6
  7. 7.What is the value of the digit 8 in 71.268? (a) 0.008 (b) 0.08 (c) 0.8 (d) 8
  8. 8.What is the value of the digit 6 in 61.425? (a) 0.06 (b) 6 (c) 60 (d) 0.6
  9. 9.3.35 + 2.2 = ? (a) 5.65 (b) 3.57 (c) 5.45 (d) 5.55
  10. 10.Which is the smallest: 0.523, 0.62, 0.6, 0.055? (a) 0.523 (b) 0.62 (c) 0.6 (d) 0.055
  11. 11.What is the value of the digit 6 in 45.386? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6
  12. 12.Which is the greatest: 0.033, 0.21, 0.118, 0.2? (a) 0.033 (b) 0.21 (c) 0.118 (d) 0.2
  13. 13.Which is the greatest: 0.6, 0.543, 0.078, 0.63? (a) 0.6 (b) 0.543 (c) 0.078 (d) 0.63
  14. 14.What is the value of the digit 1 in 61.572? (a) 0.01 (b) 0.1 (c) 1 (d) 10
  15. 15.Which is the smallest: 0.3, 0.063, 0.36, 0.248? (a) 0.3 (b) 0.063 (c) 0.36 (d) 0.248
  16. 16.Which is the greatest: 0.751, 0.89, 0.041, 0.8? (a) 0.751 (b) 0.89 (c) 0.041 (d) 0.8
  17. 17.Which is the greatest: 0.69, 0.089, 0.6, 0.585? (a) 0.69 (b) 0.089 (c) 0.6 (d) 0.585
  18. 18.Which is the smallest: 0.537, 0.038, 0.6, 0.63? (a) 0.537 (b) 0.038 (c) 0.6 (d) 0.63
  19. 19.Which is the greatest: 0.639, 0.7, 0.77, 0.012? (a) 0.639 (b) 0.7 (c) 0.77 (d) 0.012
  20. 20.Which is the greatest: 0.033, 0.89, 0.8, 0.713? (a) 0.033 (b) 0.89 (c) 0.8 (d) 0.713
  21. 21.2.71 + 8.4 = ? (a) 11.11 (b) 11.21 (c) 3.55 (d) 11.01
  22. 22.Which is the smallest: 0.088, 0.7, 0.72, 0.611? (a) 0.088 (b) 0.7 (c) 0.72 (d) 0.611
  23. 23.8.69 + 3.6 = ? (a) 9.05 (b) 12.39 (c) 12.29 (d) 12.19
  24. 24.What is the value of the digit 1 in 28.491? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  25. 25.Which is the smallest: 0.187, 0.2, 0.24, 0.057? (a) 0.187 (b) 0.2 (c) 0.24 (d) 0.057
  26. 26.What is the value of the digit 5 in 25.318? (a) 5 (b) 0.05 (c) 0.5 (d) 50
  27. 27.1.11 + 5.1 = ? (a) 6.31 (b) 6.21 (c) 6.11 (d) 1.62
  28. 28.Which is the smallest: 0.84, 0.047, 0.748, 0.8? (a) 0.84 (b) 0.047 (c) 0.748 (d) 0.8
  29. 29.What is the value of the digit 3 in 34.162? (a) 3 (b) 0.3 (c) 0.03 (d) 30
  30. 30.7.43 + 1.5 = ? (a) 8.83 (b) 9.03 (c) 8.93 (d) 7.58
  31. 31.Which is the greatest: 0.331, 0.4, 0.057, 0.47? (a) 0.331 (b) 0.4 (c) 0.057 (d) 0.47
  32. 32.Which is the smallest: 0.061, 0.587, 0.6, 0.61? (a) 0.061 (b) 0.587 (c) 0.6 (d) 0.61
  33. 33.9.26 + 7.1 = ? (a) 16.26 (b) 9.97 (c) 16.36 (d) 16.46
  34. 34.What is the value of the digit 3 in 43.165? (a) 30 (b) 3 (c) 0.03 (d) 0.3
  35. 35.Which is the greatest: 0.228, 0.098, 0.3, 0.38? (a) 0.228 (b) 0.098 (c) 0.3 (d) 0.38
  36. 36.Which is the smallest: 0.7, 0.659, 0.71, 0.086? (a) 0.7 (b) 0.659 (c) 0.71 (d) 0.086
  37. 37.Which is the smallest: 0.785, 0.8, 0.81, 0.068? (a) 0.785 (b) 0.8 (c) 0.81 (d) 0.068
  38. 38.7.84 + 9.3 = ? (a) 17.04 (b) 17.24 (c) 17.14 (d) 8.77
  39. 39.3.42 + 9.2 = ? (a) 12.62 (b) 4.34 (c) 12.72 (d) 12.52
  40. 40.8.41 + 2.1 = ? (a) 10.41 (b) 10.61 (c) 10.51 (d) 8.62

Answer key

  1. 0.9
  2. 17.73
  3. 15.06
  4. 0.6
  5. 0.088
  6. 0.62
  7. 0.008
  8. 60
  9. 5.55
  10. 0.055
  11. 0.006
  12. 0.21
  13. 0.63
  14. 1
  15. 0.063
  16. 0.89
  17. 0.69
  18. 0.038
  19. 0.77
  20. 0.89
  21. 11.11
  22. 0.088
  23. 12.29
  24. 0.001
  25. 0.057
  26. 5
  27. 6.21
  28. 0.047
  29. 30
  30. 8.93
  31. 0.47
  32. 0.061
  33. 16.36
  34. 3
  35. 0.38
  36. 0.086
  37. 0.068
  38. 17.14
  39. 12.62
  40. 10.51

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