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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 696 · 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. 1.9.27 + 4.7 = ? (a) 14.07 (b) 13.87 (c) 13.97 (d) 9.74
  2. 2.What is the value of the digit 9 in 29.641? (a) 9 (b) 90 (c) 0.9 (d) 0.09
  3. 3.9.71 + 7.8 = ? (a) 17.41 (b) 17.51 (c) 10.49 (d) 17.61
  4. 4.Which is the greatest: 0.091, 0.593, 0.61, 0.6? (a) 0.091 (b) 0.593 (c) 0.61 (d) 0.6
  5. 5.7.28 + 7.7 = ? (a) 14.98 (b) 8.05 (c) 14.88 (d) 15.08
  6. 6.What is the value of the digit 9 in 46.913? (a) 9 (b) 0.009 (c) 0.9 (d) 0.09
  7. 7.What is the value of the digit 8 in 24.386? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  8. 8.Which is the greatest: 0.012, 0.32, 0.3, 0.211? (a) 0.012 (b) 0.32 (c) 0.3 (d) 0.211
  9. 9.2.08 + 6.3 = ? (a) 8.38 (b) 8.48 (c) 8.28 (d) 2.71
  10. 10.Which is the greatest: 0.175, 0.2, 0.27, 0.075? (a) 0.175 (b) 0.2 (c) 0.27 (d) 0.075
  11. 11.Which is the greatest: 0.018, 0.791, 0.83, 0.8? (a) 0.018 (b) 0.791 (c) 0.83 (d) 0.8
  12. 12.Which is the smallest: 0.82, 0.098, 0.8, 0.797? (a) 0.82 (b) 0.098 (c) 0.8 (d) 0.797
  13. 13.Which is the smallest: 0.356, 0.4, 0.074, 0.42? (a) 0.356 (b) 0.4 (c) 0.074 (d) 0.42
  14. 14.3.52 + 7.5 = ? (a) 4.27 (b) 11.02 (c) 11.12 (d) 10.92
  15. 15.What is the value of the digit 2 in 75.926? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  16. 16.2.03 + 3.2 = ? (a) 5.13 (b) 5.33 (c) 5.23 (d) 2.35
  17. 17.7.52 + 2.1 = ? (a) 9.52 (b) 9.62 (c) 9.72 (d) 7.73
  18. 18.Which is the smallest: 0.031, 0.58, 0.488, 0.5? (a) 0.031 (b) 0.58 (c) 0.488 (d) 0.5
  19. 19.What is the value of the digit 4 in 42.837? (a) 0.4 (b) 0.04 (c) 4 (d) 40
  20. 20.What is the value of the digit 6 in 26.914? (a) 60 (b) 6 (c) 0.6 (d) 0.06
  21. 21.8.35 + 8.5 = ? (a) 9.2 (b) 16.95 (c) 16.75 (d) 16.85
  22. 22.4.98 + 2.6 = ? (a) 7.48 (b) 7.58 (c) 7.68 (d) 5.24
  23. 23.6.37 + 1.7 = ? (a) 8.07 (b) 6.54 (c) 8.17 (d) 7.97
  24. 24.What is the value of the digit 8 in 28.593? (a) 0.8 (b) 8 (c) 0.08 (d) 80
  25. 25.What is the value of the digit 2 in 62.914? (a) 20 (b) 2 (c) 0.02 (d) 0.2
  26. 26.3.36 + 1.3 = ? (a) 4.76 (b) 3.49 (c) 4.66 (d) 4.56
  27. 27.Which is the smallest: 0.286, 0.3, 0.34, 0.055? (a) 0.286 (b) 0.3 (c) 0.34 (d) 0.055
  28. 28.Which is the greatest: 0.78, 0.7, 0.658, 0.095? (a) 0.78 (b) 0.7 (c) 0.658 (d) 0.095
  29. 29.Which is the smallest: 0.7, 0.615, 0.76, 0.023? (a) 0.7 (b) 0.615 (c) 0.76 (d) 0.023
  30. 30.Which is the smallest: 0.49, 0.067, 0.329, 0.4? (a) 0.49 (b) 0.067 (c) 0.329 (d) 0.4
  31. 31.Which is the greatest: 0.73, 0.019, 0.638, 0.7? (a) 0.73 (b) 0.019 (c) 0.638 (d) 0.7
  32. 32.What is the value of the digit 1 in 36.921? (a) 0.1 (b) 0.01 (c) 0.001 (d) 1
  33. 33.8.61 + 2.2 = ? (a) 10.81 (b) 10.91 (c) 10.71 (d) 8.83
  34. 34.5.98 + 2.5 = ? (a) 6.23 (b) 8.38 (c) 8.58 (d) 8.48
  35. 35.Which is the greatest: 0.8, 0.084, 0.83, 0.778? (a) 0.8 (b) 0.084 (c) 0.83 (d) 0.778
  36. 36.3.12 + 8.2 = ? (a) 3.94 (b) 11.32 (c) 11.22 (d) 11.42
  37. 37.2.13 + 2.2 = ? (a) 4.43 (b) 4.23 (c) 4.33 (d) 2.35
  38. 38.What is the value of the digit 3 in 35.871? (a) 3 (b) 0.03 (c) 0.3 (d) 30
  39. 39.4.85 + 5.4 = ? (a) 10.25 (b) 10.35 (c) 5.39 (d) 10.15
  40. 40.Which is the greatest: 0.092, 0.5, 0.54, 0.417? (a) 0.092 (b) 0.5 (c) 0.54 (d) 0.417

Answer key

  1. 13.97
  2. 9
  3. 17.51
  4. 0.61
  5. 14.98
  6. 0.9
  7. 0.08
  8. 0.32
  9. 8.38
  10. 0.27
  11. 0.83
  12. 0.098
  13. 0.074
  14. 11.02
  15. 0.02
  16. 5.23
  17. 9.62
  18. 0.031
  19. 40
  20. 6
  21. 16.85
  22. 7.58
  23. 8.07
  24. 8
  25. 2
  26. 4.66
  27. 0.055
  28. 0.78
  29. 0.023
  30. 0.067
  31. 0.73
  32. 0.001
  33. 10.81
  34. 8.48
  35. 0.83
  36. 11.32
  37. 4.33
  38. 30
  39. 10.25
  40. 0.54

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