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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 302 · 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: 0.54, 0.5, 0.422, 0.019? (a) 0.54 (b) 0.5 (c) 0.422 (d) 0.019
  2. 2.Which is the smallest: 0.32, 0.3, 0.014, 0.225? (a) 0.32 (b) 0.3 (c) 0.014 (d) 0.225
  3. 3.What is the value of the digit 7 in 39.716? (a) 0.7 (b) 7 (c) 0.007 (d) 0.07
  4. 4.2.97 + 6.8 = ? (a) 9.87 (b) 3.65 (c) 9.77 (d) 9.67
  5. 5.1.31 + 1.1 = ? (a) 1.42 (b) 2.51 (c) 2.41 (d) 2.31
  6. 6.1.33 + 6.9 = ? (a) 8.23 (b) 8.33 (c) 8.13 (d) 2.02
  7. 7.Which is the greatest: 0.2, 0.25, 0.155, 0.064? (a) 0.2 (b) 0.25 (c) 0.155 (d) 0.064
  8. 8.Which is the smallest: 0.41, 0.033, 0.4, 0.357? (a) 0.41 (b) 0.033 (c) 0.4 (d) 0.357
  9. 9.What is the value of the digit 2 in 23.986? (a) 20 (b) 0.02 (c) 0.2 (d) 2
  10. 10.Which is the smallest: 0.336, 0.45, 0.076, 0.4? (a) 0.336 (b) 0.45 (c) 0.076 (d) 0.4
  11. 11.Which is the smallest: 0.72, 0.668, 0.084, 0.7? (a) 0.72 (b) 0.668 (c) 0.084 (d) 0.7
  12. 12.5.71 + 7.6 = ? (a) 6.47 (b) 13.41 (c) 13.31 (d) 13.21
  13. 13.3.16 + 4.1 = ? (a) 3.57 (b) 7.26 (c) 7.36 (d) 7.16
  14. 14.Which is the smallest: 0.069, 0.82, 0.8, 0.761? (a) 0.069 (b) 0.82 (c) 0.8 (d) 0.761
  15. 15.What is the value of the digit 5 in 68.953? (a) 0.005 (b) 0.5 (c) 0.05 (d) 5
  16. 16.7.47 + 4.2 = ? (a) 11.77 (b) 7.89 (c) 11.57 (d) 11.67
  17. 17.What is the value of the digit 8 in 91.852? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  18. 18.Which is the smallest: 0.024, 0.5, 0.55, 0.463? (a) 0.024 (b) 0.5 (c) 0.55 (d) 0.463
  19. 19.Which is the greatest: 0.039, 0.285, 0.39, 0.3? (a) 0.039 (b) 0.285 (c) 0.39 (d) 0.3
  20. 20.8.65 + 2.5 = ? (a) 11.15 (b) 11.25 (c) 11.05 (d) 8.9
  21. 21.What is the value of the digit 6 in 24.786? (a) 0.006 (b) 0.06 (c) 6 (d) 0.6
  22. 22.What is the value of the digit 3 in 12.378? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  23. 23.Which is the greatest: 0.4, 0.016, 0.41, 0.342? (a) 0.4 (b) 0.016 (c) 0.41 (d) 0.342
  24. 24.What is the value of the digit 3 in 75.432? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  25. 25.2.01 + 1.4 = ? (a) 2.15 (b) 3.51 (c) 3.41 (d) 3.31
  26. 26.6.13 + 7.9 = ? (a) 13.93 (b) 14.03 (c) 6.92 (d) 14.13
  27. 27.6.13 + 5.1 = ? (a) 11.23 (b) 11.33 (c) 11.13 (d) 6.64
  28. 28.What is the value of the digit 8 in 37.958? (a) 0.008 (b) 0.8 (c) 0.08 (d) 8
  29. 29.Which is the greatest: 0.113, 0.27, 0.2, 0.052? (a) 0.113 (b) 0.27 (c) 0.2 (d) 0.052
  30. 30.Which is the smallest: 0.61, 0.062, 0.6, 0.537? (a) 0.61 (b) 0.062 (c) 0.6 (d) 0.537
  31. 31.9.49 + 9.2 = ? (a) 10.41 (b) 18.59 (c) 18.79 (d) 18.69
  32. 32.Which is the greatest: 0.2, 0.099, 0.22, 0.127? (a) 0.2 (b) 0.099 (c) 0.22 (d) 0.127
  33. 33.3.52 + 9.5 = ? (a) 12.92 (b) 4.47 (c) 13.02 (d) 13.12
  34. 34.What is the value of the digit 5 in 63.519? (a) 0.005 (b) 0.05 (c) 0.5 (d) 5
  35. 35.What is the value of the digit 8 in 35.876? (a) 8 (b) 0.08 (c) 0.8 (d) 0.008
  36. 36.Which is the smallest: 0.081, 0.4, 0.381, 0.41? (a) 0.081 (b) 0.4 (c) 0.381 (d) 0.41
  37. 37.2.14 + 9.7 = ? (a) 11.94 (b) 11.74 (c) 11.84 (d) 3.11
  38. 38.What is the value of the digit 9 in 97.426? (a) 90 (b) 0.09 (c) 0.9 (d) 9
  39. 39.Which is the greatest: 0.564, 0.061, 0.6, 0.64? (a) 0.564 (b) 0.061 (c) 0.6 (d) 0.64
  40. 40.2.93 + 7.8 = ? (a) 10.63 (b) 10.83 (c) 10.73 (d) 3.71

Answer key

  1. 0.019
  2. 0.014
  3. 0.7
  4. 9.77
  5. 2.41
  6. 8.23
  7. 0.25
  8. 0.033
  9. 20
  10. 0.076
  11. 0.084
  12. 13.31
  13. 7.26
  14. 0.069
  15. 0.05
  16. 11.67
  17. 0.8
  18. 0.024
  19. 0.39
  20. 11.15
  21. 0.006
  22. 0.3
  23. 0.41
  24. 0.03
  25. 3.41
  26. 14.03
  27. 11.23
  28. 0.008
  29. 0.27
  30. 0.062
  31. 18.69
  32. 0.22
  33. 13.02
  34. 0.5
  35. 0.8
  36. 0.081
  37. 11.84
  38. 90
  39. 0.64
  40. 10.73

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