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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 364 · 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. 1.3.98 + 1.8 = ? (a) 5.68 (b) 5.88 (c) 4.16 (d) 5.78
  2. 2.What is the value of the digit 8 in 23.871? (a) 0.8 (b) 0.008 (c) 8 (d) 0.08
  3. 3.Which is the smallest: 0.6, 0.68, 0.521, 0.064? (a) 0.6 (b) 0.68 (c) 0.521 (d) 0.064
  4. 4.What is the value of the digit 5 in 23.465? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  5. 5.3.52 + 6.1 = ? (a) 4.13 (b) 9.52 (c) 9.72 (d) 9.62
  6. 6.3.74 + 8.3 = ? (a) 11.94 (b) 4.57 (c) 12.04 (d) 12.14
  7. 7.What is the value of the digit 8 in 51.896? (a) 0.08 (b) 8 (c) 0.008 (d) 0.8
  8. 8.What is the value of the digit 3 in 38.146? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  9. 9.What is the value of the digit 4 in 29.148? (a) 4 (b) 0.4 (c) 0.04 (d) 0.004
  10. 10.What is the value of the digit 5 in 51.946? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  11. 11.What is the value of the digit 6 in 68.254? (a) 6 (b) 0.6 (c) 0.06 (d) 60
  12. 12.Which is the smallest: 0.056, 0.88, 0.8, 0.793? (a) 0.056 (b) 0.88 (c) 0.8 (d) 0.793
  13. 13.What is the value of the digit 7 in 17.485? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  14. 14.6.28 + 6.8 = ? (a) 6.96 (b) 12.98 (c) 13.18 (d) 13.08
  15. 15.What is the value of the digit 8 in 38.916? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  16. 16.2.58 + 4.4 = ? (a) 6.88 (b) 6.98 (c) 3.02 (d) 7.08
  17. 17.Which is the smallest: 0.4, 0.097, 0.359, 0.47? (a) 0.4 (b) 0.097 (c) 0.359 (d) 0.47
  18. 18.Which is the smallest: 0.76, 0.7, 0.054, 0.631? (a) 0.76 (b) 0.7 (c) 0.054 (d) 0.631
  19. 19.4.18 + 2.9 = ? (a) 6.98 (b) 7.18 (c) 7.08 (d) 4.47
  20. 20.9.71 + 1.1 = ? (a) 10.91 (b) 10.81 (c) 9.82 (d) 10.71
  21. 21.What is the value of the digit 5 in 75.312? (a) 50 (b) 5 (c) 0.05 (d) 0.5
  22. 22.9.36 + 7.2 = ? (a) 16.56 (b) 16.46 (c) 10.08 (d) 16.66
  23. 23.Which is the greatest: 0.3, 0.076, 0.33, 0.227? (a) 0.3 (b) 0.076 (c) 0.33 (d) 0.227
  24. 24.Which is the smallest: 0.079, 0.7, 0.638, 0.71? (a) 0.079 (b) 0.7 (c) 0.638 (d) 0.71
  25. 25.What is the value of the digit 6 in 67.123? (a) 6 (b) 0.6 (c) 0.06 (d) 60
  26. 26.2.54 + 2.3 = ? (a) 4.94 (b) 4.74 (c) 4.84 (d) 2.77
  27. 27.Which is the greatest: 0.572, 0.091, 0.6, 0.68? (a) 0.572 (b) 0.091 (c) 0.6 (d) 0.68
  28. 28.What is the value of the digit 8 in 19.384? (a) 0.8 (b) 8 (c) 0.008 (d) 0.08
  29. 29.Which is the smallest: 0.158, 0.057, 0.2, 0.27? (a) 0.158 (b) 0.057 (c) 0.2 (d) 0.27
  30. 30.What is the value of the digit 9 in 87.593? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  31. 31.7.06 + 8.5 = ? (a) 7.91 (b) 15.66 (c) 15.56 (d) 15.46
  32. 32.What is the value of the digit 9 in 49.325? (a) 90 (b) 0.09 (c) 0.9 (d) 9
  33. 33.Which is the greatest: 0.22, 0.165, 0.049, 0.2? (a) 0.22 (b) 0.165 (c) 0.049 (d) 0.2
  34. 34.3.99 + 5.1 = ? (a) 9.09 (b) 4.5 (c) 9.19 (d) 8.99
  35. 35.What is the value of the digit 1 in 39.214? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  36. 36.Which is the greatest: 0.4, 0.069, 0.314, 0.49? (a) 0.4 (b) 0.069 (c) 0.314 (d) 0.49
  37. 37.Which is the greatest: 0.681, 0.046, 0.7, 0.75? (a) 0.681 (b) 0.046 (c) 0.7 (d) 0.75
  38. 38.What is the value of the digit 5 in 16.952? (a) 5 (b) 0.005 (c) 0.5 (d) 0.05
  39. 39.Which is the smallest: 0.256, 0.019, 0.3, 0.34? (a) 0.256 (b) 0.019 (c) 0.3 (d) 0.34
  40. 40.What is the value of the digit 6 in 65.239? (a) 6 (b) 0.6 (c) 0.06 (d) 60

Answer key

  1. 5.78
  2. 0.8
  3. 0.064
  4. 0.005
  5. 9.62
  6. 12.04
  7. 0.8
  8. 30
  9. 0.04
  10. 50
  11. 60
  12. 0.056
  13. 7
  14. 13.08
  15. 8
  16. 6.98
  17. 0.097
  18. 0.054
  19. 7.08
  20. 10.81
  21. 5
  22. 16.56
  23. 0.33
  24. 0.079
  25. 60
  26. 4.84
  27. 0.68
  28. 0.08
  29. 0.057
  30. 0.09
  31. 15.56
  32. 9
  33. 0.22
  34. 9.09
  35. 0.01
  36. 0.49
  37. 0.75
  38. 0.05
  39. 0.019
  40. 60

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