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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 880 · 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. 1.2.27 + 3.1 = ? (a) 2.58 (b) 5.47 (c) 5.37 (d) 5.27
  2. 2.What is the value of the digit 2 in 27.983? (a) 2 (b) 0.02 (c) 20 (d) 0.2
  3. 3.Which is the greatest: 0.026, 0.8, 0.84, 0.799? (a) 0.026 (b) 0.8 (c) 0.84 (d) 0.799
  4. 4.Which is the greatest: 0.033, 0.685, 0.76, 0.7? (a) 0.033 (b) 0.685 (c) 0.76 (d) 0.7
  5. 5.2.93 + 2.6 = ? (a) 5.63 (b) 5.53 (c) 5.43 (d) 3.19
  6. 6.Which is the smallest: 0.21, 0.111, 0.035, 0.2? (a) 0.21 (b) 0.111 (c) 0.035 (d) 0.2
  7. 7.4.48 + 3.7 = ? (a) 8.28 (b) 8.18 (c) 4.85 (d) 8.08
  8. 8.What is the value of the digit 6 in 63.719? (a) 0.06 (b) 6 (c) 0.6 (d) 60
  9. 9.Which is the greatest: 0.095, 0.6, 0.63, 0.561? (a) 0.095 (b) 0.6 (c) 0.63 (d) 0.561
  10. 10.What is the value of the digit 1 in 35.146? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  11. 11.What is the value of the digit 5 in 51.824? (a) 50 (b) 0.5 (c) 5 (d) 0.05
  12. 12.Which is the greatest: 0.081, 0.558, 0.63, 0.6? (a) 0.081 (b) 0.558 (c) 0.63 (d) 0.6
  13. 13.Which is the greatest: 0.046, 0.522, 0.61, 0.6? (a) 0.046 (b) 0.522 (c) 0.61 (d) 0.6
  14. 14.9.24 + 1.2 = ? (a) 10.44 (b) 10.54 (c) 10.34 (d) 9.36
  15. 15.6.05 + 3.8 = ? (a) 9.75 (b) 6.43 (c) 9.95 (d) 9.85
  16. 16.9.67 + 3.9 = ? (a) 13.47 (b) 13.57 (c) 10.06 (d) 13.67
  17. 17.2.22 + 2.4 = ? (a) 2.46 (b) 4.52 (c) 4.72 (d) 4.62
  18. 18.3.58 + 6.9 = ? (a) 10.48 (b) 4.27 (c) 10.38 (d) 10.58
  19. 19.Which is the smallest: 0.084, 0.72, 0.7, 0.687? (a) 0.084 (b) 0.72 (c) 0.7 (d) 0.687
  20. 20.What is the value of the digit 3 in 54.731? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  21. 21.What is the value of the digit 6 in 14.836? (a) 0.006 (b) 0.06 (c) 6 (d) 0.6
  22. 22.What is the value of the digit 4 in 26.841? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  23. 23.What is the value of the digit 6 in 76.124? (a) 0.06 (b) 60 (c) 6 (d) 0.6
  24. 24.Which is the smallest: 0.5, 0.457, 0.099, 0.59? (a) 0.5 (b) 0.457 (c) 0.099 (d) 0.59
  25. 25.3.31 + 4.7 = ? (a) 8.01 (b) 8.11 (c) 3.78 (d) 7.91
  26. 26.What is the value of the digit 6 in 12.965? (a) 0.6 (b) 0.06 (c) 0.006 (d) 6
  27. 27.2.98 + 7.1 = ? (a) 3.69 (b) 9.98 (c) 10.18 (d) 10.08
  28. 28.Which is the smallest: 0.022, 0.793, 0.8, 0.84? (a) 0.022 (b) 0.793 (c) 0.8 (d) 0.84
  29. 29.Which is the greatest: 0.524, 0.63, 0.017, 0.6? (a) 0.524 (b) 0.63 (c) 0.017 (d) 0.6
  30. 30.9.95 + 5.5 = ? (a) 15.45 (b) 15.35 (c) 10.5 (d) 15.55
  31. 31.What is the value of the digit 5 in 16.583? (a) 0.005 (b) 0.5 (c) 0.05 (d) 5
  32. 32.What is the value of the digit 3 in 39.752? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  33. 33.9.01 + 5.6 = ? (a) 9.57 (b) 14.61 (c) 14.51 (d) 14.71
  34. 34.2.08 + 1.8 = ? (a) 3.98 (b) 2.26 (c) 3.78 (d) 3.88
  35. 35.Which is the greatest: 0.011, 0.785, 0.82, 0.8? (a) 0.011 (b) 0.785 (c) 0.82 (d) 0.8
  36. 36.Which is the greatest: 0.59, 0.5, 0.448, 0.044? (a) 0.59 (b) 0.5 (c) 0.448 (d) 0.044
  37. 37.Which is the smallest: 0.7, 0.627, 0.75, 0.017? (a) 0.7 (b) 0.627 (c) 0.75 (d) 0.017
  38. 38.Which is the greatest: 0.724, 0.8, 0.82, 0.061? (a) 0.724 (b) 0.8 (c) 0.82 (d) 0.061
  39. 39.4.48 + 2.1 = ? (a) 6.58 (b) 6.48 (c) 4.69 (d) 6.68
  40. 40.Which is the greatest: 0.038, 0.44, 0.332, 0.4? (a) 0.038 (b) 0.44 (c) 0.332 (d) 0.4

Answer key

  1. 5.37
  2. 20
  3. 0.84
  4. 0.76
  5. 5.53
  6. 0.035
  7. 8.18
  8. 60
  9. 0.63
  10. 0.1
  11. 50
  12. 0.63
  13. 0.61
  14. 10.44
  15. 9.85
  16. 13.57
  17. 4.62
  18. 10.48
  19. 0.084
  20. 0.03
  21. 0.006
  22. 0.04
  23. 6
  24. 0.099
  25. 8.01
  26. 0.06
  27. 10.08
  28. 0.022
  29. 0.63
  30. 15.45
  31. 0.5
  32. 30
  33. 14.61
  34. 3.88
  35. 0.82
  36. 0.59
  37. 0.017
  38. 0.82
  39. 6.58
  40. 0.44

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