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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 586 · 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: 0.28, 0.2, 0.187, 0.079? (a) 0.28 (b) 0.2 (c) 0.187 (d) 0.079
  2. 2.1.25 + 8.5 = ? (a) 9.85 (b) 2.1 (c) 9.65 (d) 9.75
  3. 3.What is the value of the digit 7 in 96.725? (a) 7 (b) 0.007 (c) 0.7 (d) 0.07
  4. 4.What is the value of the digit 1 in 81.345? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  5. 5.3.43 + 7.2 = ? (a) 4.15 (b) 10.73 (c) 10.63 (d) 10.53
  6. 6.What is the value of the digit 7 in 78.126? (a) 70 (b) 0.7 (c) 0.07 (d) 7
  7. 7.1.09 + 1.6 = ? (a) 2.79 (b) 2.59 (c) 1.25 (d) 2.69
  8. 8.6.76 + 8.2 = ? (a) 15.06 (b) 14.96 (c) 7.58 (d) 14.86
  9. 9.7.73 + 1.7 = ? (a) 7.9 (b) 9.33 (c) 9.43 (d) 9.53
  10. 10.What is the value of the digit 4 in 29.456? (a) 0.4 (b) 0.004 (c) 0.04 (d) 4
  11. 11.9.31 + 5.1 = ? (a) 14.31 (b) 14.41 (c) 9.82 (d) 14.51
  12. 12.Which is the greatest: 0.7, 0.643, 0.029, 0.72? (a) 0.7 (b) 0.643 (c) 0.029 (d) 0.72
  13. 13.8.44 + 8.3 = ? (a) 16.74 (b) 16.64 (c) 16.84 (d) 9.27
  14. 14.Which is the smallest: 0.266, 0.3, 0.058, 0.37? (a) 0.266 (b) 0.3 (c) 0.058 (d) 0.37
  15. 15.What is the value of the digit 3 in 24.367? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  16. 16.3.57 + 2.8 = ? (a) 6.27 (b) 6.37 (c) 3.85 (d) 6.47
  17. 17.1.21 + 6.7 = ? (a) 8.01 (b) 7.81 (c) 1.88 (d) 7.91
  18. 18.What is the value of the digit 8 in 59.478? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  19. 19.What is the value of the digit 2 in 28.761? (a) 2 (b) 0.02 (c) 20 (d) 0.2
  20. 20.4.08 + 2.1 = ? (a) 6.28 (b) 4.29 (c) 6.08 (d) 6.18
  21. 21.8.92 + 3.8 = ? (a) 12.62 (b) 12.82 (c) 12.72 (d) 9.3
  22. 22.6.37 + 7.4 = ? (a) 7.11 (b) 13.87 (c) 13.67 (d) 13.77
  23. 23.8.29 + 2.3 = ? (a) 10.69 (b) 10.49 (c) 10.59 (d) 8.52
  24. 24.1.94 + 3.2 = ? (a) 5.24 (b) 5.14 (c) 2.26 (d) 5.04
  25. 25.4.13 + 8.8 = ? (a) 5.01 (b) 13.03 (c) 12.83 (d) 12.93
  26. 26.Which is the smallest: 0.576, 0.093, 0.69, 0.6? (a) 0.576 (b) 0.093 (c) 0.69 (d) 0.6
  27. 27.3.45 + 5.1 = ? (a) 3.96 (b) 8.55 (c) 8.65 (d) 8.45
  28. 28.Which is the greatest: 0.65, 0.6, 0.536, 0.092? (a) 0.65 (b) 0.6 (c) 0.536 (d) 0.092
  29. 29.What is the value of the digit 7 in 17.354? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  30. 30.Which is the smallest: 0.3, 0.099, 0.39, 0.289? (a) 0.3 (b) 0.099 (c) 0.39 (d) 0.289
  31. 31.Which is the greatest: 0.2, 0.122, 0.059, 0.22? (a) 0.2 (b) 0.122 (c) 0.059 (d) 0.22
  32. 32.Which is the smallest: 0.153, 0.036, 0.26, 0.2? (a) 0.153 (b) 0.036 (c) 0.26 (d) 0.2
  33. 33.What is the value of the digit 5 in 15.386? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  34. 34.Which is the greatest: 0.399, 0.47, 0.075, 0.4? (a) 0.399 (b) 0.47 (c) 0.075 (d) 0.4
  35. 35.Which is the smallest: 0.036, 0.48, 0.4, 0.365? (a) 0.036 (b) 0.48 (c) 0.4 (d) 0.365
  36. 36.1.97 + 1.4 = ? (a) 3.47 (b) 3.27 (c) 2.11 (d) 3.37
  37. 37.Which is the smallest: 0.674, 0.73, 0.7, 0.023? (a) 0.674 (b) 0.73 (c) 0.7 (d) 0.023
  38. 38.What is the value of the digit 1 in 58.196? (a) 0.01 (b) 0.001 (c) 1 (d) 0.1
  39. 39.Which is the greatest: 0.676, 0.079, 0.78, 0.7? (a) 0.676 (b) 0.079 (c) 0.78 (d) 0.7
  40. 40.Which is the greatest: 0.553, 0.6, 0.61, 0.071? (a) 0.553 (b) 0.6 (c) 0.61 (d) 0.071

Answer key

  1. 0.28
  2. 9.75
  3. 0.7
  4. 1
  5. 10.63
  6. 70
  7. 2.69
  8. 14.96
  9. 9.43
  10. 0.4
  11. 14.41
  12. 0.72
  13. 16.74
  14. 0.058
  15. 0.3
  16. 6.37
  17. 7.91
  18. 0.008
  19. 20
  20. 6.18
  21. 12.72
  22. 13.77
  23. 10.59
  24. 5.14
  25. 12.93
  26. 0.093
  27. 8.55
  28. 0.65
  29. 7
  30. 0.099
  31. 0.22
  32. 0.036
  33. 5
  34. 0.47
  35. 0.036
  36. 3.37
  37. 0.023
  38. 0.1
  39. 0.78
  40. 0.61

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