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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 795 · 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 4 in 34.567? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  2. 2.6.23 + 8.3 = ? (a) 14.53 (b) 14.43 (c) 7.06 (d) 14.63
  3. 3.2.52 + 4.1 = ? (a) 2.93 (b) 6.72 (c) 6.62 (d) 6.52
  4. 4.Which is the smallest: 0.8, 0.89, 0.719, 0.087? (a) 0.8 (b) 0.89 (c) 0.719 (d) 0.087
  5. 5.9.44 + 4.9 = ? (a) 9.93 (b) 14.24 (c) 14.44 (d) 14.34
  6. 6.Which is the greatest: 0.135, 0.2, 0.24, 0.064? (a) 0.135 (b) 0.2 (c) 0.24 (d) 0.064
  7. 7.Which is the greatest: 0.62, 0.575, 0.6, 0.064? (a) 0.62 (b) 0.575 (c) 0.6 (d) 0.064
  8. 8.Which is the smallest: 0.045, 0.24, 0.167, 0.2? (a) 0.045 (b) 0.24 (c) 0.167 (d) 0.2
  9. 9.4.18 + 9.8 = ? (a) 14.08 (b) 5.16 (c) 13.88 (d) 13.98
  10. 10.Which is the smallest: 0.65, 0.526, 0.081, 0.6? (a) 0.65 (b) 0.526 (c) 0.081 (d) 0.6
  11. 11.3.14 + 5.7 = ? (a) 8.84 (b) 8.94 (c) 8.74 (d) 3.71
  12. 12.8.72 + 4.4 = ? (a) 9.16 (b) 13.12 (c) 13.22 (d) 13.02
  13. 13.Which is the smallest: 0.316, 0.055, 0.4, 0.41? (a) 0.316 (b) 0.055 (c) 0.4 (d) 0.41
  14. 14.Which is the smallest: 0.358, 0.47, 0.081, 0.4? (a) 0.358 (b) 0.47 (c) 0.081 (d) 0.4
  15. 15.Which is the smallest: 0.7, 0.646, 0.018, 0.73? (a) 0.7 (b) 0.646 (c) 0.018 (d) 0.73
  16. 16.Which is the greatest: 0.043, 0.2, 0.23, 0.119? (a) 0.043 (b) 0.2 (c) 0.23 (d) 0.119
  17. 17.8.12 + 8.3 = ? (a) 8.95 (b) 16.52 (c) 16.42 (d) 16.32
  18. 18.4.39 + 3.5 = ? (a) 7.99 (b) 4.74 (c) 7.79 (d) 7.89
  19. 19.9.52 + 5.3 = ? (a) 14.82 (b) 14.92 (c) 10.05 (d) 14.72
  20. 20.1.79 + 2.8 = ? (a) 4.49 (b) 2.07 (c) 4.69 (d) 4.59
  21. 21.What is the value of the digit 8 in 68.293? (a) 80 (b) 0.8 (c) 8 (d) 0.08
  22. 22.What is the value of the digit 8 in 39.821? (a) 8 (b) 0.8 (c) 0.08 (d) 0.008
  23. 23.Which is the smallest: 0.31, 0.3, 0.261, 0.044? (a) 0.31 (b) 0.3 (c) 0.261 (d) 0.044
  24. 24.Which is the greatest: 0.3, 0.071, 0.32, 0.212? (a) 0.3 (b) 0.071 (c) 0.32 (d) 0.212
  25. 25.Which is the greatest: 0.4, 0.077, 0.47, 0.334? (a) 0.4 (b) 0.077 (c) 0.47 (d) 0.334
  26. 26.What is the value of the digit 1 in 13.268? (a) 1 (b) 0.01 (c) 0.1 (d) 10
  27. 27.Which is the smallest: 0.022, 0.4, 0.364, 0.43? (a) 0.022 (b) 0.4 (c) 0.364 (d) 0.43
  28. 28.6.25 + 8.2 = ? (a) 7.07 (b) 14.35 (c) 14.55 (d) 14.45
  29. 29.Which is the smallest: 0.051, 0.3, 0.32, 0.255? (a) 0.051 (b) 0.3 (c) 0.32 (d) 0.255
  30. 30.Which is the smallest: 0.69, 0.6, 0.083, 0.537? (a) 0.69 (b) 0.6 (c) 0.083 (d) 0.537
  31. 31.Which is the greatest: 0.23, 0.2, 0.178, 0.016? (a) 0.23 (b) 0.2 (c) 0.178 (d) 0.016
  32. 32.What is the value of the digit 8 in 74.986? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  33. 33.1.61 + 7.2 = ? (a) 8.71 (b) 2.33 (c) 8.81 (d) 8.91
  34. 34.2.42 + 9.8 = ? (a) 12.32 (b) 3.4 (c) 12.12 (d) 12.22
  35. 35.Which is the smallest: 0.543, 0.012, 0.61, 0.6? (a) 0.543 (b) 0.012 (c) 0.61 (d) 0.6
  36. 36.What is the value of the digit 3 in 75.321? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  37. 37.Which is the greatest: 0.023, 0.42, 0.4, 0.325? (a) 0.023 (b) 0.42 (c) 0.4 (d) 0.325
  38. 38.Which is the smallest: 0.035, 0.6, 0.62, 0.511? (a) 0.035 (b) 0.6 (c) 0.62 (d) 0.511
  39. 39.What is the value of the digit 9 in 59.364? (a) 90 (b) 9 (c) 0.9 (d) 0.09
  40. 40.1.56 + 3.3 = ? (a) 4.96 (b) 4.76 (c) 4.86 (d) 1.89

Answer key

  1. 4
  2. 14.53
  3. 6.62
  4. 0.087
  5. 14.34
  6. 0.24
  7. 0.62
  8. 0.045
  9. 13.98
  10. 0.081
  11. 8.84
  12. 13.12
  13. 0.055
  14. 0.081
  15. 0.018
  16. 0.23
  17. 16.42
  18. 7.89
  19. 14.82
  20. 4.59
  21. 8
  22. 0.8
  23. 0.044
  24. 0.32
  25. 0.47
  26. 10
  27. 0.022
  28. 14.45
  29. 0.051
  30. 0.083
  31. 0.23
  32. 0.08
  33. 8.81
  34. 12.22
  35. 0.012
  36. 0.3
  37. 0.42
  38. 0.035
  39. 9
  40. 4.86

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