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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 701 · 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 92.835? (a) 0.9 (b) 90 (c) 9 (d) 0.09
  2. 2.Which is the smallest: 0.084, 0.464, 0.53, 0.5? (a) 0.084 (b) 0.464 (c) 0.53 (d) 0.5
  3. 3.Which is the greatest: 0.4, 0.367, 0.012, 0.42? (a) 0.4 (b) 0.367 (c) 0.012 (d) 0.42
  4. 4.Which is the smallest: 0.7, 0.627, 0.078, 0.74? (a) 0.7 (b) 0.627 (c) 0.078 (d) 0.74
  5. 5.Which is the greatest: 0.649, 0.043, 0.79, 0.7? (a) 0.649 (b) 0.043 (c) 0.79 (d) 0.7
  6. 6.6.72 + 7.7 = ? (a) 14.42 (b) 14.52 (c) 14.32 (d) 7.49
  7. 7.1.19 + 5.8 = ? (a) 6.99 (b) 1.77 (c) 6.89 (d) 7.09
  8. 8.7.25 + 1.1 = ? (a) 8.45 (b) 7.36 (c) 8.25 (d) 8.35
  9. 9.9.52 + 3.7 = ? (a) 13.12 (b) 9.89 (c) 13.32 (d) 13.22
  10. 10.2.31 + 2.7 = ? (a) 5.01 (b) 2.58 (c) 5.11 (d) 4.91
  11. 11.5.32 + 4.1 = ? (a) 9.32 (b) 9.52 (c) 9.42 (d) 5.73
  12. 12.8.82 + 6.9 = ? (a) 15.82 (b) 15.72 (c) 15.62 (d) 9.51
  13. 13.Which is the greatest: 0.029, 0.181, 0.29, 0.2? (a) 0.029 (b) 0.181 (c) 0.29 (d) 0.2
  14. 14.What is the value of the digit 6 in 32.617? (a) 0.06 (b) 0.006 (c) 0.6 (d) 6
  15. 15.Which is the smallest: 0.34, 0.3, 0.075, 0.265? (a) 0.34 (b) 0.3 (c) 0.075 (d) 0.265
  16. 16.What is the value of the digit 8 in 97.825? (a) 8 (b) 0.08 (c) 0.008 (d) 0.8
  17. 17.1.15 + 4.1 = ? (a) 5.15 (b) 1.56 (c) 5.35 (d) 5.25
  18. 18.4.71 + 7.9 = ? (a) 5.5 (b) 12.61 (c) 12.51 (d) 12.71
  19. 19.Which is the greatest: 0.5, 0.486, 0.015, 0.53? (a) 0.5 (b) 0.486 (c) 0.015 (d) 0.53
  20. 20.What is the value of the digit 4 in 73.452? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  21. 21.Which is the greatest: 0.258, 0.33, 0.3, 0.042? (a) 0.258 (b) 0.33 (c) 0.3 (d) 0.042
  22. 22.Which is the smallest: 0.045, 0.42, 0.362, 0.4? (a) 0.045 (b) 0.42 (c) 0.362 (d) 0.4
  23. 23.9.86 + 4.5 = ? (a) 14.26 (b) 14.36 (c) 14.46 (d) 10.31
  24. 24.Which is the greatest: 0.695, 0.011, 0.7, 0.71? (a) 0.695 (b) 0.011 (c) 0.7 (d) 0.71
  25. 25.8.36 + 2.2 = ? (a) 10.56 (b) 8.58 (c) 10.66 (d) 10.46
  26. 26.7.22 + 7.9 = ? (a) 15.22 (b) 15.02 (c) 8.01 (d) 15.12
  27. 27.6.79 + 9.7 = ? (a) 7.76 (b) 16.59 (c) 16.49 (d) 16.39
  28. 28.Which is the smallest: 0.2, 0.25, 0.067, 0.126? (a) 0.2 (b) 0.25 (c) 0.067 (d) 0.126
  29. 29.5.88 + 7.6 = ? (a) 13.58 (b) 13.48 (c) 6.64 (d) 13.38
  30. 30.1.57 + 8.1 = ? (a) 9.67 (b) 2.38 (c) 9.77 (d) 9.57
  31. 31.Which is the smallest: 0.348, 0.43, 0.092, 0.4? (a) 0.348 (b) 0.43 (c) 0.092 (d) 0.4
  32. 32.What is the value of the digit 3 in 69.843? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  33. 33.Which is the greatest: 0.035, 0.448, 0.58, 0.5? (a) 0.035 (b) 0.448 (c) 0.58 (d) 0.5
  34. 34.Which is the smallest: 0.7, 0.664, 0.035, 0.72? (a) 0.7 (b) 0.664 (c) 0.035 (d) 0.72
  35. 35.2.49 + 1.9 = ? (a) 4.39 (b) 2.68 (c) 4.49 (d) 4.29
  36. 36.Which is the smallest: 0.28, 0.157, 0.093, 0.2? (a) 0.28 (b) 0.157 (c) 0.093 (d) 0.2
  37. 37.4.21 + 1.4 = ? (a) 5.71 (b) 5.61 (c) 4.35 (d) 5.51
  38. 38.4.72 + 7.1 = ? (a) 5.43 (b) 11.72 (c) 11.82 (d) 11.92
  39. 39.Which is the smallest: 0.75, 0.671, 0.091, 0.7? (a) 0.75 (b) 0.671 (c) 0.091 (d) 0.7
  40. 40.8.01 + 3.8 = ? (a) 8.39 (b) 11.91 (c) 11.81 (d) 11.71

Answer key

  1. 90
  2. 0.084
  3. 0.42
  4. 0.078
  5. 0.79
  6. 14.42
  7. 6.99
  8. 8.35
  9. 13.22
  10. 5.01
  11. 9.42
  12. 15.72
  13. 0.29
  14. 0.6
  15. 0.075
  16. 0.8
  17. 5.25
  18. 12.61
  19. 0.53
  20. 0.4
  21. 0.33
  22. 0.045
  23. 14.36
  24. 0.71
  25. 10.56
  26. 15.12
  27. 16.49
  28. 0.067
  29. 13.48
  30. 9.67
  31. 0.092
  32. 0.003
  33. 0.58
  34. 0.035
  35. 4.39
  36. 0.093
  37. 5.61
  38. 11.82
  39. 0.091
  40. 11.81

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