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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 401 · 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 1 in 16.598? (a) 0.01 (b) 1 (c) 10 (d) 0.1
  2. 2.What is the value of the digit 4 in 63.254? (a) 0.4 (b) 4 (c) 0.04 (d) 0.004
  3. 3.Which is the smallest: 0.62, 0.593, 0.043, 0.6? (a) 0.62 (b) 0.593 (c) 0.043 (d) 0.6
  4. 4.Which is the smallest: 0.025, 0.744, 0.8, 0.87? (a) 0.025 (b) 0.744 (c) 0.8 (d) 0.87
  5. 5.Which is the smallest: 0.44, 0.4, 0.353, 0.033? (a) 0.44 (b) 0.4 (c) 0.353 (d) 0.033
  6. 6.What is the value of the digit 4 in 32.814? (a) 0.4 (b) 4 (c) 0.04 (d) 0.004
  7. 7.What is the value of the digit 8 in 85.734? (a) 0.08 (b) 0.8 (c) 80 (d) 8
  8. 8.What is the value of the digit 2 in 92.416? (a) 20 (b) 0.2 (c) 0.02 (d) 2
  9. 9.3.28 + 3.2 = ? (a) 6.38 (b) 6.48 (c) 3.6 (d) 6.58
  10. 10.What is the value of the digit 1 in 36.124? (a) 0.01 (b) 1 (c) 0.1 (d) 0.001
  11. 11.What is the value of the digit 1 in 71.268? (a) 0.01 (b) 10 (c) 0.1 (d) 1
  12. 12.What is the value of the digit 4 in 19.472? (a) 0.004 (b) 4 (c) 0.4 (d) 0.04
  13. 13.Which is the smallest: 0.272, 0.058, 0.31, 0.3? (a) 0.272 (b) 0.058 (c) 0.31 (d) 0.3
  14. 14.1.54 + 5.8 = ? (a) 2.12 (b) 7.24 (c) 7.44 (d) 7.34
  15. 15.8.05 + 5.9 = ? (a) 13.95 (b) 14.05 (c) 8.64 (d) 13.85
  16. 16.What is the value of the digit 1 in 98.165? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  17. 17.2.32 + 2.7 = ? (a) 4.92 (b) 2.59 (c) 5.12 (d) 5.02
  18. 18.What is the value of the digit 7 in 63.572? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  19. 19.What is the value of the digit 5 in 13.485? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  20. 20.What is the value of the digit 1 in 24.715? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  21. 21.8.87 + 3.1 = ? (a) 12.07 (b) 11.87 (c) 9.18 (d) 11.97
  22. 22.6.78 + 3.3 = ? (a) 10.18 (b) 9.98 (c) 7.11 (d) 10.08
  23. 23.4.05 + 7.6 = ? (a) 4.81 (b) 11.75 (c) 11.55 (d) 11.65
  24. 24.5.02 + 9.5 = ? (a) 14.62 (b) 14.52 (c) 14.42 (d) 5.97
  25. 25.Which is the smallest: 0.032, 0.186, 0.26, 0.2? (a) 0.032 (b) 0.186 (c) 0.26 (d) 0.2
  26. 26.Which is the greatest: 0.75, 0.7, 0.661, 0.082? (a) 0.75 (b) 0.7 (c) 0.661 (d) 0.082
  27. 27.Which is the smallest: 0.6, 0.042, 0.558, 0.64? (a) 0.6 (b) 0.042 (c) 0.558 (d) 0.64
  28. 28.5.61 + 7.6 = ? (a) 6.37 (b) 13.21 (c) 13.11 (d) 13.31
  29. 29.What is the value of the digit 3 in 38.164? (a) 3 (b) 0.03 (c) 30 (d) 0.3
  30. 30.Which is the smallest: 0.476, 0.5, 0.041, 0.53? (a) 0.476 (b) 0.5 (c) 0.041 (d) 0.53
  31. 31.What is the value of the digit 5 in 35.647? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  32. 32.2.12 + 2.9 = ? (a) 2.41 (b) 5.02 (c) 4.92 (d) 5.12
  33. 33.What is the value of the digit 1 in 17.325? (a) 10 (b) 1 (c) 0.1 (d) 0.01
  34. 34.6.91 + 9.8 = ? (a) 16.81 (b) 16.61 (c) 16.71 (d) 7.89
  35. 35.What is the value of the digit 8 in 89.416? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  36. 36.Which is the greatest: 0.3, 0.033, 0.35, 0.276? (a) 0.3 (b) 0.033 (c) 0.35 (d) 0.276
  37. 37.Which is the smallest: 0.2, 0.077, 0.135, 0.28? (a) 0.2 (b) 0.077 (c) 0.135 (d) 0.28
  38. 38.4.27 + 5.1 = ? (a) 9.27 (b) 9.37 (c) 4.78 (d) 9.47
  39. 39.What is the value of the digit 2 in 13.298? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  40. 40.What is the value of the digit 5 in 59.743? (a) 0.05 (b) 50 (c) 0.5 (d) 5

Answer key

  1. 10
  2. 0.004
  3. 0.043
  4. 0.025
  5. 0.033
  6. 0.004
  7. 80
  8. 2
  9. 6.48
  10. 0.1
  11. 1
  12. 0.4
  13. 0.058
  14. 7.34
  15. 13.95
  16. 0.1
  17. 5.02
  18. 0.07
  19. 0.005
  20. 0.01
  21. 11.97
  22. 10.08
  23. 11.65
  24. 14.52
  25. 0.032
  26. 0.75
  27. 0.042
  28. 13.21
  29. 30
  30. 0.041
  31. 5
  32. 5.02
  33. 10
  34. 16.71
  35. 80
  36. 0.35
  37. 0.077
  38. 9.37
  39. 0.2
  40. 50

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