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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 276 · 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: 0.244, 0.34, 0.059, 0.3? (a) 0.244 (b) 0.34 (c) 0.059 (d) 0.3
  2. 2.3.27 + 1.4 = ? (a) 4.77 (b) 3.41 (c) 4.67 (d) 4.57
  3. 3.5.99 + 1.8 = ? (a) 7.69 (b) 7.89 (c) 6.17 (d) 7.79
  4. 4.9.58 + 8.4 = ? (a) 17.98 (b) 10.42 (c) 17.88 (d) 18.08
  5. 5.What is the value of the digit 1 in 19.486? (a) 1 (b) 0.1 (c) 0.01 (d) 10
  6. 6.What is the value of the digit 7 in 75.231? (a) 0.07 (b) 7 (c) 0.7 (d) 70
  7. 7.1.59 + 4.3 = ? (a) 5.79 (b) 5.99 (c) 5.89 (d) 2.02
  8. 8.3.11 + 5.1 = ? (a) 8.31 (b) 3.62 (c) 8.11 (d) 8.21
  9. 9.Which is the smallest: 0.298, 0.025, 0.37, 0.3? (a) 0.298 (b) 0.025 (c) 0.37 (d) 0.3
  10. 10.4.68 + 1.5 = ? (a) 6.08 (b) 4.83 (c) 6.18 (d) 6.28
  11. 11.What is the value of the digit 8 in 14.382? (a) 0.008 (b) 0.08 (c) 0.8 (d) 8
  12. 12.5.11 + 8.1 = ? (a) 5.92 (b) 13.31 (c) 13.11 (d) 13.21
  13. 13.8.83 + 4.3 = ? (a) 13.23 (b) 13.13 (c) 13.03 (d) 9.26
  14. 14.What is the value of the digit 2 in 19.325? (a) 0.002 (b) 0.2 (c) 2 (d) 0.02
  15. 15.Which is the greatest: 0.022, 0.64, 0.526, 0.6? (a) 0.022 (b) 0.64 (c) 0.526 (d) 0.6
  16. 16.3.59 + 9.8 = ? (a) 13.29 (b) 13.49 (c) 13.39 (d) 4.57
  17. 17.Which is the greatest: 0.088, 0.44, 0.4, 0.366? (a) 0.088 (b) 0.44 (c) 0.4 (d) 0.366
  18. 18.Which is the greatest: 0.076, 0.3, 0.214, 0.32? (a) 0.076 (b) 0.3 (c) 0.214 (d) 0.32
  19. 19.2.53 + 9.3 = ? (a) 11.73 (b) 3.46 (c) 11.93 (d) 11.83
  20. 20.4.49 + 9.1 = ? (a) 5.4 (b) 13.49 (c) 13.69 (d) 13.59
  21. 21.What is the value of the digit 5 in 94.562? (a) 0.05 (b) 5 (c) 0.5 (d) 0.005
  22. 22.Which is the smallest: 0.76, 0.7, 0.036, 0.681? (a) 0.76 (b) 0.7 (c) 0.036 (d) 0.681
  23. 23.Which is the greatest: 0.26, 0.042, 0.115, 0.2? (a) 0.26 (b) 0.042 (c) 0.115 (d) 0.2
  24. 24.What is the value of the digit 1 in 68.271? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  25. 25.Which is the greatest: 0.7, 0.613, 0.71, 0.055? (a) 0.7 (b) 0.613 (c) 0.71 (d) 0.055
  26. 26.What is the value of the digit 9 in 92.315? (a) 0.09 (b) 9 (c) 0.9 (d) 90
  27. 27.What is the value of the digit 4 in 85.427? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  28. 28.Which is the greatest: 0.443, 0.017, 0.53, 0.5? (a) 0.443 (b) 0.017 (c) 0.53 (d) 0.5
  29. 29.What is the value of the digit 4 in 75.481? (a) 4 (b) 0.04 (c) 0.004 (d) 0.4
  30. 30.Which is the smallest: 0.083, 0.62, 0.6, 0.589? (a) 0.083 (b) 0.62 (c) 0.6 (d) 0.589
  31. 31.3.02 + 6.3 = ? (a) 9.42 (b) 9.22 (c) 3.65 (d) 9.32
  32. 32.What is the value of the digit 3 in 16.234? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  33. 33.What is the value of the digit 2 in 85.721? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02
  34. 34.What is the value of the digit 9 in 97.813? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  35. 35.What is the value of the digit 7 in 17.384? (a) 0.07 (b) 7 (c) 0.7 (d) 70
  36. 36.Which is the greatest: 0.41, 0.4, 0.039, 0.312? (a) 0.41 (b) 0.4 (c) 0.039 (d) 0.312
  37. 37.Which is the greatest: 0.032, 0.5, 0.51, 0.474? (a) 0.032 (b) 0.5 (c) 0.51 (d) 0.474
  38. 38.What is the value of the digit 6 in 19.468? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6
  39. 39.Which is the smallest: 0.051, 0.6, 0.62, 0.527? (a) 0.051 (b) 0.6 (c) 0.62 (d) 0.527
  40. 40.1.12 + 2.8 = ? (a) 3.92 (b) 4.02 (c) 3.82 (d) 1.4

Answer key

  1. 0.059
  2. 4.67
  3. 7.79
  4. 17.98
  5. 10
  6. 70
  7. 5.89
  8. 8.21
  9. 0.025
  10. 6.18
  11. 0.08
  12. 13.21
  13. 13.13
  14. 0.02
  15. 0.64
  16. 13.39
  17. 0.44
  18. 0.32
  19. 11.83
  20. 13.59
  21. 0.5
  22. 0.036
  23. 0.26
  24. 0.001
  25. 0.71
  26. 90
  27. 0.4
  28. 0.53
  29. 0.4
  30. 0.083
  31. 9.32
  32. 0.03
  33. 0.02
  34. 90
  35. 7
  36. 0.41
  37. 0.51
  38. 0.06
  39. 0.051
  40. 3.92

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