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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 52 · 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. 1.6.19 + 9.3 = ? (a) 15.59 (b) 15.39 (c) 15.49 (d) 7.12
  2. 2.What is the value of the digit 6 in 63.925? (a) 6 (b) 0.06 (c) 60 (d) 0.6
  3. 3.3.61 + 3.6 = ? (a) 7.31 (b) 3.97 (c) 7.11 (d) 7.21
  4. 4.What is the value of the digit 1 in 75.421? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  5. 5.Which is the greatest: 0.097, 0.81, 0.8, 0.764? (a) 0.097 (b) 0.81 (c) 0.8 (d) 0.764
  6. 6.What is the value of the digit 1 in 91.257? (a) 1 (b) 0.01 (c) 10 (d) 0.1
  7. 7.Which is the greatest: 0.3, 0.222, 0.022, 0.35? (a) 0.3 (b) 0.222 (c) 0.022 (d) 0.35
  8. 8.Which is the smallest: 0.192, 0.092, 0.2, 0.26? (a) 0.192 (b) 0.092 (c) 0.2 (d) 0.26
  9. 9.What is the value of the digit 9 in 97.216? (a) 9 (b) 0.9 (c) 90 (d) 0.09
  10. 10.Which is the greatest: 0.444, 0.052, 0.59, 0.5? (a) 0.444 (b) 0.052 (c) 0.59 (d) 0.5
  11. 11.Which is the smallest: 0.739, 0.83, 0.067, 0.8? (a) 0.739 (b) 0.83 (c) 0.067 (d) 0.8
  12. 12.Which is the greatest: 0.7, 0.617, 0.022, 0.76? (a) 0.7 (b) 0.617 (c) 0.022 (d) 0.76
  13. 13.7.36 + 4.1 = ? (a) 7.77 (b) 11.36 (c) 11.46 (d) 11.56
  14. 14.1.11 + 3.1 = ? (a) 4.31 (b) 4.21 (c) 1.42 (d) 4.11
  15. 15.What is the value of the digit 5 in 19.356? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  16. 16.Which is the greatest: 0.45, 0.029, 0.325, 0.4? (a) 0.45 (b) 0.029 (c) 0.325 (d) 0.4
  17. 17.9.35 + 6.2 = ? (a) 15.55 (b) 15.65 (c) 9.97 (d) 15.45
  18. 18.What is the value of the digit 9 in 98.741? (a) 0.9 (b) 90 (c) 9 (d) 0.09
  19. 19.Which is the greatest: 0.231, 0.021, 0.3, 0.35? (a) 0.231 (b) 0.021 (c) 0.3 (d) 0.35
  20. 20.Which is the greatest: 0.613, 0.056, 0.7, 0.72? (a) 0.613 (b) 0.056 (c) 0.7 (d) 0.72
  21. 21.8.56 + 1.2 = ? (a) 9.76 (b) 9.66 (c) 9.86 (d) 8.68
  22. 22.Which is the smallest: 0.013, 0.4, 0.46, 0.332? (a) 0.013 (b) 0.4 (c) 0.46 (d) 0.332
  23. 23.What is the value of the digit 2 in 27.185? (a) 0.2 (b) 20 (c) 2 (d) 0.02
  24. 24.Which is the greatest: 0.86, 0.059, 0.8, 0.714? (a) 0.86 (b) 0.059 (c) 0.8 (d) 0.714
  25. 25.2.13 + 8.3 = ? (a) 2.96 (b) 10.53 (c) 10.33 (d) 10.43
  26. 26.Which is the greatest: 0.034, 0.2, 0.135, 0.22? (a) 0.034 (b) 0.2 (c) 0.135 (d) 0.22
  27. 27.4.15 + 3.9 = ? (a) 4.54 (b) 8.05 (c) 7.95 (d) 8.15
  28. 28.Which is the smallest: 0.351, 0.4, 0.081, 0.49? (a) 0.351 (b) 0.4 (c) 0.081 (d) 0.49
  29. 29.4.25 + 6.3 = ? (a) 10.65 (b) 10.45 (c) 10.55 (d) 4.88
  30. 30.What is the value of the digit 5 in 32.895? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  31. 31.1.55 + 3.9 = ? (a) 5.35 (b) 5.55 (c) 5.45 (d) 1.94
  32. 32.Which is the greatest: 0.365, 0.49, 0.4, 0.042? (a) 0.365 (b) 0.49 (c) 0.4 (d) 0.042
  33. 33.What is the value of the digit 9 in 94.716? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  34. 34.2.75 + 2.1 = ? (a) 2.96 (b) 4.95 (c) 4.85 (d) 4.75
  35. 35.6.51 + 6.9 = ? (a) 13.31 (b) 13.51 (c) 13.41 (d) 7.2
  36. 36.What is the value of the digit 2 in 29.371? (a) 2 (b) 20 (c) 0.2 (d) 0.02
  37. 37.Which is the greatest: 0.043, 0.41, 0.333, 0.4? (a) 0.043 (b) 0.41 (c) 0.333 (d) 0.4
  38. 38.What is the value of the digit 3 in 98.613? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03
  39. 39.Which is the smallest: 0.061, 0.2, 0.132, 0.26? (a) 0.061 (b) 0.2 (c) 0.132 (d) 0.26
  40. 40.7.04 + 6.2 = ? (a) 13.14 (b) 7.66 (c) 13.24 (d) 13.34

Answer key

  1. 15.49
  2. 60
  3. 7.21
  4. 0.001
  5. 0.81
  6. 1
  7. 0.35
  8. 0.092
  9. 90
  10. 0.59
  11. 0.067
  12. 0.76
  13. 11.46
  14. 4.21
  15. 0.05
  16. 0.45
  17. 15.55
  18. 90
  19. 0.35
  20. 0.72
  21. 9.76
  22. 0.013
  23. 20
  24. 0.86
  25. 10.43
  26. 0.22
  27. 8.05
  28. 0.081
  29. 10.55
  30. 0.005
  31. 5.45
  32. 0.49
  33. 90
  34. 4.85
  35. 13.41
  36. 20
  37. 0.41
  38. 0.003
  39. 0.061
  40. 13.24

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