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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 946 · 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 2 in 83.125? (a) 2 (b) 0.002 (c) 0.2 (d) 0.02
  2. 2.Which is the smallest: 0.58, 0.5, 0.464, 0.031? (a) 0.58 (b) 0.5 (c) 0.464 (d) 0.031
  3. 3.6.21 + 5.9 = ? (a) 12.11 (b) 6.8 (c) 12.01 (d) 12.21
  4. 4.1.58 + 1.5 = ? (a) 2.98 (b) 3.08 (c) 3.18 (d) 1.73
  5. 5.What is the value of the digit 8 in 63.985? (a) 0.08 (b) 0.008 (c) 0.8 (d) 8
  6. 6.What is the value of the digit 6 in 76.352? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  7. 7.What is the value of the digit 7 in 79.452? (a) 0.07 (b) 70 (c) 0.7 (d) 7
  8. 8.Which is the greatest: 0.8, 0.732, 0.041, 0.83? (a) 0.8 (b) 0.732 (c) 0.041 (d) 0.83
  9. 9.Which is the smallest: 0.432, 0.53, 0.061, 0.5? (a) 0.432 (b) 0.53 (c) 0.061 (d) 0.5
  10. 10.7.69 + 9.2 = ? (a) 16.79 (b) 16.89 (c) 8.61 (d) 16.99
  11. 11.3.04 + 1.9 = ? (a) 3.23 (b) 5.04 (c) 4.94 (d) 4.84
  12. 12.5.74 + 3.5 = ? (a) 6.09 (b) 9.34 (c) 9.24 (d) 9.14
  13. 13.6.95 + 3.4 = ? (a) 10.35 (b) 7.29 (c) 10.25 (d) 10.45
  14. 14.Which is the greatest: 0.031, 0.24, 0.2, 0.174? (a) 0.031 (b) 0.24 (c) 0.2 (d) 0.174
  15. 15.2.43 + 1.9 = ? (a) 4.23 (b) 4.43 (c) 4.33 (d) 2.62
  16. 16.4.93 + 9.3 = ? (a) 14.33 (b) 14.13 (c) 14.23 (d) 5.86
  17. 17.What is the value of the digit 3 in 54.321? (a) 0.03 (b) 0.3 (c) 3 (d) 0.003
  18. 18.What is the value of the digit 5 in 71.345? (a) 0.05 (b) 0.5 (c) 0.005 (d) 5
  19. 19.9.81 + 8.5 = ? (a) 18.31 (b) 18.21 (c) 10.66 (d) 18.41
  20. 20.6.61 + 9.6 = ? (a) 7.57 (b) 16.31 (c) 16.11 (d) 16.21
  21. 21.Which is the smallest: 0.528, 0.011, 0.6, 0.65? (a) 0.528 (b) 0.011 (c) 0.6 (d) 0.65
  22. 22.4.07 + 3.1 = ? (a) 4.38 (b) 7.17 (c) 7.27 (d) 7.07
  23. 23.9.78 + 8.2 = ? (a) 17.88 (b) 18.08 (c) 10.6 (d) 17.98
  24. 24.What is the value of the digit 2 in 59.382? (a) 0.02 (b) 0.002 (c) 0.2 (d) 2
  25. 25.Which is the greatest: 0.027, 0.21, 0.185, 0.2? (a) 0.027 (b) 0.21 (c) 0.185 (d) 0.2
  26. 26.1.72 + 7.3 = ? (a) 8.92 (b) 9.02 (c) 2.45 (d) 9.12
  27. 27.Which is the smallest: 0.147, 0.2, 0.082, 0.26? (a) 0.147 (b) 0.2 (c) 0.082 (d) 0.26
  28. 28.What is the value of the digit 8 in 38.421? (a) 80 (b) 0.08 (c) 0.8 (d) 8
  29. 29.What is the value of the digit 6 in 76.432? (a) 60 (b) 0.6 (c) 0.06 (d) 6
  30. 30.1.77 + 8.6 = ? (a) 2.63 (b) 10.47 (c) 10.27 (d) 10.37
  31. 31.Which is the smallest: 0.2, 0.28, 0.117, 0.072? (a) 0.2 (b) 0.28 (c) 0.117 (d) 0.072
  32. 32.3.01 + 2.4 = ? (a) 3.25 (b) 5.41 (c) 5.31 (d) 5.51
  33. 33.7.14 + 3.1 = ? (a) 10.14 (b) 10.24 (c) 10.34 (d) 7.45
  34. 34.Which is the greatest: 0.684, 0.75, 0.046, 0.7? (a) 0.684 (b) 0.75 (c) 0.046 (d) 0.7
  35. 35.What is the value of the digit 5 in 95.368? (a) 0.05 (b) 0.5 (c) 5 (d) 50
  36. 36.7.35 + 7.4 = ? (a) 14.65 (b) 8.09 (c) 14.85 (d) 14.75
  37. 37.Which is the smallest: 0.57, 0.091, 0.5, 0.482? (a) 0.57 (b) 0.091 (c) 0.5 (d) 0.482
  38. 38.5.18 + 7.1 = ? (a) 5.89 (b) 12.28 (c) 12.18 (d) 12.38
  39. 39.What is the value of the digit 1 in 32.918? (a) 0.01 (b) 0.001 (c) 1 (d) 0.1
  40. 40.What is the value of the digit 8 in 38.195? (a) 80 (b) 8 (c) 0.8 (d) 0.08

Answer key

  1. 0.02
  2. 0.031
  3. 12.11
  4. 3.08
  5. 0.08
  6. 6
  7. 70
  8. 0.83
  9. 0.061
  10. 16.89
  11. 4.94
  12. 9.24
  13. 10.35
  14. 0.24
  15. 4.33
  16. 14.23
  17. 0.3
  18. 0.005
  19. 18.31
  20. 16.21
  21. 0.011
  22. 7.17
  23. 17.98
  24. 0.002
  25. 0.21
  26. 9.02
  27. 0.082
  28. 8
  29. 6
  30. 10.37
  31. 0.072
  32. 5.41
  33. 10.24
  34. 0.75
  35. 5
  36. 14.75
  37. 0.091
  38. 12.28
  39. 0.01
  40. 8

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