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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 97 · 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 smallest: 0.471, 0.55, 0.5, 0.026? (a) 0.471 (b) 0.55 (c) 0.5 (d) 0.026
  2. 2.What is the value of the digit 6 in 64.185? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  3. 3.What is the value of the digit 4 in 93.541? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  4. 4.What is the value of the digit 5 in 45.782? (a) 50 (b) 0.5 (c) 0.05 (d) 5
  5. 5.Which is the greatest: 0.5, 0.068, 0.465, 0.51? (a) 0.5 (b) 0.068 (c) 0.465 (d) 0.51
  6. 6.Which is the smallest: 0.21, 0.024, 0.2, 0.123? (a) 0.21 (b) 0.024 (c) 0.2 (d) 0.123
  7. 7.6.07 + 3.3 = ? (a) 9.47 (b) 6.4 (c) 9.37 (d) 9.27
  8. 8.What is the value of the digit 3 in 46.379? (a) 3 (b) 0.003 (c) 0.03 (d) 0.3
  9. 9.5.08 + 1.9 = ? (a) 7.08 (b) 5.27 (c) 6.88 (d) 6.98
  10. 10.Which is the smallest: 0.8, 0.078, 0.85, 0.758? (a) 0.8 (b) 0.078 (c) 0.85 (d) 0.758
  11. 11.Which is the greatest: 0.58, 0.5, 0.052, 0.416? (a) 0.58 (b) 0.5 (c) 0.052 (d) 0.416
  12. 12.Which is the greatest: 0.087, 0.281, 0.36, 0.3? (a) 0.087 (b) 0.281 (c) 0.36 (d) 0.3
  13. 13.Which is the smallest: 0.4, 0.45, 0.337, 0.079? (a) 0.4 (b) 0.45 (c) 0.337 (d) 0.079
  14. 14.4.05 + 1.1 = ? (a) 5.25 (b) 5.05 (c) 5.15 (d) 4.16
  15. 15.Which is the greatest: 0.3, 0.011, 0.36, 0.226? (a) 0.3 (b) 0.011 (c) 0.36 (d) 0.226
  16. 16.9.41 + 3.5 = ? (a) 12.91 (b) 12.81 (c) 13.01 (d) 9.76
  17. 17.8.83 + 2.2 = ? (a) 11.03 (b) 9.05 (c) 10.93 (d) 11.13
  18. 18.Which is the greatest: 0.54, 0.032, 0.471, 0.5? (a) 0.54 (b) 0.032 (c) 0.471 (d) 0.5
  19. 19.5.09 + 1.9 = ? (a) 6.89 (b) 5.28 (c) 6.99 (d) 7.09
  20. 20.Which is the greatest: 0.234, 0.35, 0.3, 0.082? (a) 0.234 (b) 0.35 (c) 0.3 (d) 0.082
  21. 21.8.37 + 8.1 = ? (a) 16.37 (b) 16.57 (c) 16.47 (d) 9.18
  22. 22.9.02 + 7.4 = ? (a) 16.32 (b) 16.42 (c) 16.52 (d) 9.76
  23. 23.What is the value of the digit 1 in 56.214? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  24. 24.5.34 + 1.8 = ? (a) 5.52 (b) 7.04 (c) 7.24 (d) 7.14
  25. 25.7.71 + 9.1 = ? (a) 16.71 (b) 16.91 (c) 16.81 (d) 8.62
  26. 26.Which is the smallest: 0.74, 0.623, 0.7, 0.047? (a) 0.74 (b) 0.623 (c) 0.7 (d) 0.047
  27. 27.Which is the greatest: 0.342, 0.4, 0.46, 0.044? (a) 0.342 (b) 0.4 (c) 0.46 (d) 0.044
  28. 28.8.01 + 4.5 = ? (a) 8.46 (b) 12.51 (c) 12.41 (d) 12.61
  29. 29.Which is the smallest: 0.519, 0.6, 0.025, 0.69? (a) 0.519 (b) 0.6 (c) 0.025 (d) 0.69
  30. 30.What is the value of the digit 5 in 91.758? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  31. 31.1.81 + 5.1 = ? (a) 7.01 (b) 6.81 (c) 6.91 (d) 2.32
  32. 32.Which is the smallest: 0.3, 0.093, 0.31, 0.263? (a) 0.3 (b) 0.093 (c) 0.31 (d) 0.263
  33. 33.What is the value of the digit 3 in 67.213? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  34. 34.Which is the greatest: 0.2, 0.122, 0.23, 0.091? (a) 0.2 (b) 0.122 (c) 0.23 (d) 0.091
  35. 35.What is the value of the digit 3 in 32.715? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  36. 36.Which is the greatest: 0.23, 0.2, 0.079, 0.198? (a) 0.23 (b) 0.2 (c) 0.079 (d) 0.198
  37. 37.Which is the smallest: 0.82, 0.8, 0.095, 0.778? (a) 0.82 (b) 0.8 (c) 0.095 (d) 0.778
  38. 38.1.95 + 9.9 = ? (a) 11.95 (b) 11.85 (c) 11.75 (d) 2.94
  39. 39.Which is the smallest: 0.045, 0.51, 0.5, 0.419? (a) 0.045 (b) 0.51 (c) 0.5 (d) 0.419
  40. 40.6.11 + 5.2 = ? (a) 11.21 (b) 11.31 (c) 6.63 (d) 11.41

Answer key

  1. 0.026
  2. 60
  3. 0.04
  4. 5
  5. 0.51
  6. 0.024
  7. 9.37
  8. 0.3
  9. 6.98
  10. 0.078
  11. 0.58
  12. 0.36
  13. 0.079
  14. 5.15
  15. 0.36
  16. 12.91
  17. 11.03
  18. 0.54
  19. 6.99
  20. 0.35
  21. 16.47
  22. 16.42
  23. 0.01
  24. 7.14
  25. 16.81
  26. 0.047
  27. 0.46
  28. 12.51
  29. 0.025
  30. 0.05
  31. 6.91
  32. 0.093
  33. 0.003
  34. 0.23
  35. 30
  36. 0.23
  37. 0.095
  38. 11.85
  39. 0.045
  40. 11.31

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