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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 351 · 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. 1.1.33 + 1.5 = ? (a) 2.93 (b) 2.73 (c) 1.48 (d) 2.83
  2. 2.Which is the smallest: 0.769, 0.026, 0.86, 0.8? (a) 0.769 (b) 0.026 (c) 0.86 (d) 0.8
  3. 3.8.54 + 9.1 = ? (a) 9.45 (b) 17.74 (c) 17.54 (d) 17.64
  4. 4.What is the value of the digit 6 in 36.174? (a) 0.06 (b) 0.6 (c) 6 (d) 60
  5. 5.4.82 + 6.4 = ? (a) 11.32 (b) 11.22 (c) 11.12 (d) 5.46
  6. 6.What is the value of the digit 5 in 38.451? (a) 0.5 (b) 5 (c) 0.05 (d) 0.005
  7. 7.Which is the smallest: 0.091, 0.6, 0.536, 0.65? (a) 0.091 (b) 0.6 (c) 0.536 (d) 0.65
  8. 8.8.49 + 6.9 = ? (a) 15.49 (b) 15.39 (c) 15.29 (d) 9.18
  9. 9.Which is the greatest: 0.76, 0.7, 0.075, 0.692? (a) 0.76 (b) 0.7 (c) 0.075 (d) 0.692
  10. 10.What is the value of the digit 3 in 48.753? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  11. 11.What is the value of the digit 7 in 98.617? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007
  12. 12.What is the value of the digit 9 in 73.958? (a) 9 (b) 0.09 (c) 0.009 (d) 0.9
  13. 13.6.63 + 4.5 = ? (a) 11.13 (b) 11.23 (c) 11.03 (d) 7.08
  14. 14.Which is the greatest: 0.8, 0.85, 0.051, 0.788? (a) 0.8 (b) 0.85 (c) 0.051 (d) 0.788
  15. 15.1.45 + 9.1 = ? (a) 10.65 (b) 10.45 (c) 10.55 (d) 2.36
  16. 16.Which is the greatest: 0.048, 0.8, 0.83, 0.739? (a) 0.048 (b) 0.8 (c) 0.83 (d) 0.739
  17. 17.Which is the smallest: 0.129, 0.2, 0.081, 0.22? (a) 0.129 (b) 0.2 (c) 0.081 (d) 0.22
  18. 18.What is the value of the digit 2 in 76.312? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  19. 19.9.21 + 5.4 = ? (a) 9.75 (b) 14.71 (c) 14.51 (d) 14.61
  20. 20.5.72 + 2.5 = ? (a) 8.22 (b) 8.12 (c) 5.97 (d) 8.32
  21. 21.1.03 + 1.2 = ? (a) 2.13 (b) 1.15 (c) 2.33 (d) 2.23
  22. 22.1.77 + 8.4 = ? (a) 10.07 (b) 10.27 (c) 10.17 (d) 2.61
  23. 23.What is the value of the digit 7 in 78.459? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  24. 24.6.31 + 5.8 = ? (a) 6.89 (b) 12.01 (c) 12.21 (d) 12.11
  25. 25.What is the value of the digit 1 in 13.945? (a) 0.01 (b) 0.1 (c) 1 (d) 10
  26. 26.7.56 + 7.5 = ? (a) 8.31 (b) 15.16 (c) 14.96 (d) 15.06
  27. 27.Which is the smallest: 0.422, 0.036, 0.5, 0.54? (a) 0.422 (b) 0.036 (c) 0.5 (d) 0.54
  28. 28.Which is the smallest: 0.72, 0.7, 0.054, 0.643? (a) 0.72 (b) 0.7 (c) 0.054 (d) 0.643
  29. 29.Which is the greatest: 0.6, 0.66, 0.518, 0.066? (a) 0.6 (b) 0.66 (c) 0.518 (d) 0.066
  30. 30.8.77 + 9.3 = ? (a) 18.17 (b) 9.7 (c) 18.07 (d) 17.97
  31. 31.5.08 + 4.9 = ? (a) 10.08 (b) 9.98 (c) 5.57 (d) 9.88
  32. 32.What is the value of the digit 1 in 25.169? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001
  33. 33.Which is the greatest: 0.755, 0.067, 0.8, 0.83? (a) 0.755 (b) 0.067 (c) 0.8 (d) 0.83
  34. 34.What is the value of the digit 8 in 68.937? (a) 8 (b) 0.08 (c) 80 (d) 0.8
  35. 35.2.18 + 8.8 = ? (a) 10.88 (b) 3.06 (c) 11.08 (d) 10.98
  36. 36.What is the value of the digit 9 in 16.489? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  37. 37.What is the value of the digit 8 in 43.851? (a) 0.08 (b) 8 (c) 0.8 (d) 0.008
  38. 38.9.51 + 1.1 = ? (a) 10.61 (b) 10.71 (c) 9.62 (d) 10.51
  39. 39.Which is the smallest: 0.014, 0.59, 0.5, 0.424? (a) 0.014 (b) 0.59 (c) 0.5 (d) 0.424
  40. 40.Which is the greatest: 0.082, 0.52, 0.497, 0.5? (a) 0.082 (b) 0.52 (c) 0.497 (d) 0.5

Answer key

  1. 2.83
  2. 0.026
  3. 17.64
  4. 6
  5. 11.22
  6. 0.05
  7. 0.091
  8. 15.39
  9. 0.76
  10. 0.003
  11. 0.007
  12. 0.9
  13. 11.13
  14. 0.85
  15. 10.55
  16. 0.83
  17. 0.081
  18. 0.002
  19. 14.61
  20. 8.22
  21. 2.23
  22. 10.17
  23. 70
  24. 12.11
  25. 10
  26. 15.06
  27. 0.036
  28. 0.054
  29. 0.66
  30. 18.07
  31. 9.98
  32. 0.1
  33. 0.83
  34. 8
  35. 10.98
  36. 0.009
  37. 0.8
  38. 10.61
  39. 0.014
  40. 0.52

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