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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 639 · 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 9 in 67.954? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  2. 2.Which is the smallest: 0.086, 0.5, 0.499, 0.57? (a) 0.086 (b) 0.5 (c) 0.499 (d) 0.57
  3. 3.1.51 + 8.1 = ? (a) 9.51 (b) 9.61 (c) 9.71 (d) 2.32
  4. 4.3.26 + 1.4 = ? (a) 4.56 (b) 4.66 (c) 3.4 (d) 4.76
  5. 5.4.39 + 1.3 = ? (a) 5.69 (b) 5.59 (c) 4.52 (d) 5.79
  6. 6.6.35 + 5.4 = ? (a) 11.85 (b) 6.89 (c) 11.65 (d) 11.75
  7. 7.Which is the greatest: 0.022, 0.31, 0.269, 0.3? (a) 0.022 (b) 0.31 (c) 0.269 (d) 0.3
  8. 8.What is the value of the digit 3 in 35.628? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  9. 9.5.61 + 5.2 = ? (a) 10.71 (b) 6.13 (c) 10.91 (d) 10.81
  10. 10.What is the value of the digit 7 in 29.637? (a) 0.07 (b) 7 (c) 0.7 (d) 0.007
  11. 11.Which is the greatest: 0.064, 0.58, 0.432, 0.5? (a) 0.064 (b) 0.58 (c) 0.432 (d) 0.5
  12. 12.7.62 + 3.1 = ? (a) 10.62 (b) 10.82 (c) 7.93 (d) 10.72
  13. 13.What is the value of the digit 4 in 95.471? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  14. 14.9.33 + 5.1 = ? (a) 9.84 (b) 14.33 (c) 14.43 (d) 14.53
  15. 15.Which is the smallest: 0.023, 0.75, 0.651, 0.7? (a) 0.023 (b) 0.75 (c) 0.651 (d) 0.7
  16. 16.What is the value of the digit 4 in 68.471? (a) 0.04 (b) 4 (c) 0.004 (d) 0.4
  17. 17.What is the value of the digit 7 in 89.725? (a) 7 (b) 0.07 (c) 0.007 (d) 0.7
  18. 18.9.56 + 1.3 = ? (a) 9.69 (b) 10.96 (c) 10.76 (d) 10.86
  19. 19.What is the value of the digit 8 in 41.285? (a) 0.08 (b) 0.8 (c) 0.008 (d) 8
  20. 20.What is the value of the digit 8 in 18.742? (a) 80 (b) 0.08 (c) 0.8 (d) 8
  21. 21.5.59 + 6.6 = ? (a) 6.25 (b) 12.09 (c) 12.29 (d) 12.19
  22. 22.What is the value of the digit 1 in 92.581? (a) 0.01 (b) 1 (c) 0.1 (d) 0.001
  23. 23.Which is the greatest: 0.2, 0.151, 0.24, 0.032? (a) 0.2 (b) 0.151 (c) 0.24 (d) 0.032
  24. 24.Which is the smallest: 0.073, 0.6, 0.63, 0.522? (a) 0.073 (b) 0.6 (c) 0.63 (d) 0.522
  25. 25.3.05 + 2.9 = ? (a) 3.34 (b) 6.05 (c) 5.95 (d) 5.85
  26. 26.What is the value of the digit 1 in 37.861? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  27. 27.What is the value of the digit 5 in 57.431? (a) 0.5 (b) 5 (c) 0.05 (d) 50
  28. 28.What is the value of the digit 7 in 75.319? (a) 70 (b) 7 (c) 0.7 (d) 0.07
  29. 29.2.76 + 1.4 = ? (a) 4.06 (b) 2.9 (c) 4.16 (d) 4.26
  30. 30.Which is the smallest: 0.25, 0.087, 0.191, 0.2? (a) 0.25 (b) 0.087 (c) 0.191 (d) 0.2
  31. 31.2.73 + 6.7 = ? (a) 3.4 (b) 9.43 (c) 9.53 (d) 9.33
  32. 32.9.58 + 1.1 = ? (a) 10.58 (b) 10.68 (c) 10.78 (d) 9.69
  33. 33.What is the value of the digit 9 in 68.192? (a) 9 (b) 0.009 (c) 0.09 (d) 0.9
  34. 34.What is the value of the digit 5 in 13.495? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  35. 35.1.43 + 1.7 = ? (a) 3.13 (b) 1.6 (c) 3.03 (d) 3.23
  36. 36.Which is the greatest: 0.41, 0.044, 0.339, 0.4? (a) 0.41 (b) 0.044 (c) 0.339 (d) 0.4
  37. 37.What is the value of the digit 3 in 41.372? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03
  38. 38.3.28 + 4.1 = ? (a) 7.28 (b) 3.69 (c) 7.48 (d) 7.38
  39. 39.What is the value of the digit 7 in 79.261? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  40. 40.6.84 + 8.6 = ? (a) 15.44 (b) 15.54 (c) 15.34 (d) 7.7

Answer key

  1. 0.9
  2. 0.086
  3. 9.61
  4. 4.66
  5. 5.69
  6. 11.75
  7. 0.31
  8. 30
  9. 10.81
  10. 0.007
  11. 0.58
  12. 10.72
  13. 0.4
  14. 14.43
  15. 0.023
  16. 0.4
  17. 0.7
  18. 10.86
  19. 0.08
  20. 8
  21. 12.19
  22. 0.001
  23. 0.24
  24. 0.073
  25. 5.95
  26. 0.001
  27. 50
  28. 70
  29. 4.16
  30. 0.087
  31. 9.43
  32. 10.68
  33. 0.09
  34. 0.005
  35. 3.13
  36. 0.41
  37. 0.3
  38. 7.38
  39. 70
  40. 15.44

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