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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 544 · 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 56.492? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  2. 2.8.57 + 4.1 = ? (a) 12.57 (b) 8.98 (c) 12.77 (d) 12.67
  3. 3.What is the value of the digit 2 in 53.629? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  4. 4.9.34 + 1.3 = ? (a) 9.47 (b) 10.74 (c) 10.64 (d) 10.54
  5. 5.Which is the smallest: 0.2, 0.023, 0.141, 0.26? (a) 0.2 (b) 0.023 (c) 0.141 (d) 0.26
  6. 6.Which is the greatest: 0.029, 0.354, 0.4, 0.47? (a) 0.029 (b) 0.354 (c) 0.4 (d) 0.47
  7. 7.What is the value of the digit 4 in 98.324? (a) 4 (b) 0.004 (c) 0.04 (d) 0.4
  8. 8.Which is the greatest: 0.5, 0.069, 0.462, 0.54? (a) 0.5 (b) 0.069 (c) 0.462 (d) 0.54
  9. 9.3.63 + 1.2 = ? (a) 4.83 (b) 4.73 (c) 4.93 (d) 3.75
  10. 10.4.01 + 9.2 = ? (a) 13.11 (b) 13.21 (c) 4.93 (d) 13.31
  11. 11.Which is the smallest: 0.026, 0.69, 0.6, 0.555? (a) 0.026 (b) 0.69 (c) 0.6 (d) 0.555
  12. 12.Which is the greatest: 0.018, 0.86, 0.8, 0.781? (a) 0.018 (b) 0.86 (c) 0.8 (d) 0.781
  13. 13.8.01 + 8.4 = ? (a) 8.85 (b) 16.51 (c) 16.31 (d) 16.41
  14. 14.What is the value of the digit 4 in 26.743? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  15. 15.Which is the greatest: 0.54, 0.5, 0.464, 0.065? (a) 0.54 (b) 0.5 (c) 0.464 (d) 0.065
  16. 16.Which is the smallest: 0.82, 0.746, 0.041, 0.8? (a) 0.82 (b) 0.746 (c) 0.041 (d) 0.8
  17. 17.What is the value of the digit 2 in 21.695? (a) 0.02 (b) 0.2 (c) 2 (d) 20
  18. 18.What is the value of the digit 2 in 76.542? (a) 0.2 (b) 0.02 (c) 0.002 (d) 2
  19. 19.What is the value of the digit 7 in 23.517? (a) 0.7 (b) 0.007 (c) 7 (d) 0.07
  20. 20.1.61 + 5.1 = ? (a) 6.71 (b) 2.12 (c) 6.61 (d) 6.81
  21. 21.7.02 + 1.3 = ? (a) 8.32 (b) 8.22 (c) 7.15 (d) 8.42
  22. 22.Which is the smallest: 0.87, 0.718, 0.8, 0.027? (a) 0.87 (b) 0.718 (c) 0.8 (d) 0.027
  23. 23.Which is the greatest: 0.81, 0.032, 0.8, 0.714? (a) 0.81 (b) 0.032 (c) 0.8 (d) 0.714
  24. 24.8.17 + 9.5 = ? (a) 17.67 (b) 17.77 (c) 9.12 (d) 17.57
  25. 25.What is the value of the digit 9 in 19.432? (a) 0.9 (b) 9 (c) 0.09 (d) 90
  26. 26.Which is the smallest: 0.013, 0.2, 0.27, 0.146? (a) 0.013 (b) 0.2 (c) 0.27 (d) 0.146
  27. 27.8.77 + 8.3 = ? (a) 17.17 (b) 17.07 (c) 16.97 (d) 9.6
  28. 28.Which is the smallest: 0.091, 0.261, 0.37, 0.3? (a) 0.091 (b) 0.261 (c) 0.37 (d) 0.3
  29. 29.3.13 + 3.9 = ? (a) 7.13 (b) 3.52 (c) 7.03 (d) 6.93
  30. 30.1.07 + 2.8 = ? (a) 1.35 (b) 3.77 (c) 3.87 (d) 3.97
  31. 31.Which is the smallest: 0.24, 0.017, 0.2, 0.185? (a) 0.24 (b) 0.017 (c) 0.2 (d) 0.185
  32. 32.Which is the greatest: 0.078, 0.43, 0.4, 0.353? (a) 0.078 (b) 0.43 (c) 0.4 (d) 0.353
  33. 33.6.96 + 7.1 = ? (a) 7.67 (b) 13.96 (c) 14.06 (d) 14.16
  34. 34.7.51 + 6.9 = ? (a) 14.41 (b) 14.51 (c) 8.2 (d) 14.31
  35. 35.Which is the greatest: 0.31, 0.013, 0.3, 0.221? (a) 0.31 (b) 0.013 (c) 0.3 (d) 0.221
  36. 36.What is the value of the digit 9 in 17.659? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  37. 37.Which is the smallest: 0.062, 0.478, 0.56, 0.5? (a) 0.062 (b) 0.478 (c) 0.56 (d) 0.5
  38. 38.5.07 + 7.5 = ? (a) 12.57 (b) 5.82 (c) 12.47 (d) 12.67
  39. 39.Which is the smallest: 0.2, 0.016, 0.148, 0.22? (a) 0.2 (b) 0.016 (c) 0.148 (d) 0.22
  40. 40.7.05 + 3.4 = ? (a) 10.35 (b) 10.45 (c) 10.55 (d) 7.39

Answer key

  1. 0.4
  2. 12.67
  3. 0.02
  4. 10.64
  5. 0.023
  6. 0.47
  7. 0.004
  8. 0.54
  9. 4.83
  10. 13.21
  11. 0.026
  12. 0.86
  13. 16.41
  14. 0.04
  15. 0.54
  16. 0.041
  17. 20
  18. 0.002
  19. 0.007
  20. 6.71
  21. 8.32
  22. 0.027
  23. 0.81
  24. 17.67
  25. 9
  26. 0.013
  27. 17.07
  28. 0.091
  29. 7.03
  30. 3.87
  31. 0.017
  32. 0.43
  33. 14.06
  34. 14.41
  35. 0.31
  36. 0.009
  37. 0.062
  38. 12.57
  39. 0.016
  40. 10.45

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