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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 347 · 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 3 in 83.274? (a) 3 (b) 0.3 (c) 30 (d) 0.03
  2. 2.What is the value of the digit 4 in 43.172? (a) 4 (b) 40 (c) 0.04 (d) 0.4
  3. 3.3.75 + 8.9 = ? (a) 12.75 (b) 12.65 (c) 12.55 (d) 4.64
  4. 4.6.41 + 5.1 = ? (a) 11.51 (b) 6.92 (c) 11.41 (d) 11.61
  5. 5.2.09 + 9.2 = ? (a) 11.29 (b) 11.39 (c) 11.19 (d) 3.01
  6. 6.1.49 + 6.1 = ? (a) 7.69 (b) 7.49 (c) 7.59 (d) 2.1
  7. 7.What is the value of the digit 5 in 41.625? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  8. 8.Which is the greatest: 0.3, 0.35, 0.217, 0.045? (a) 0.3 (b) 0.35 (c) 0.217 (d) 0.045
  9. 9.9.17 + 7.1 = ? (a) 16.37 (b) 9.88 (c) 16.17 (d) 16.27
  10. 10.What is the value of the digit 3 in 97.312? (a) 0.3 (b) 0.03 (c) 0.003 (d) 3
  11. 11.1.06 + 3.3 = ? (a) 1.39 (b) 4.46 (c) 4.26 (d) 4.36
  12. 12.2.96 + 2.3 = ? (a) 3.19 (b) 5.16 (c) 5.36 (d) 5.26
  13. 13.Which is the greatest: 0.67, 0.546, 0.084, 0.6? (a) 0.67 (b) 0.546 (c) 0.084 (d) 0.6
  14. 14.Which is the smallest: 0.28, 0.123, 0.2, 0.086? (a) 0.28 (b) 0.123 (c) 0.2 (d) 0.086
  15. 15.Which is the smallest: 0.776, 0.074, 0.85, 0.8? (a) 0.776 (b) 0.074 (c) 0.85 (d) 0.8
  16. 16.1.89 + 1.3 = ? (a) 3.09 (b) 3.29 (c) 2.02 (d) 3.19
  17. 17.What is the value of the digit 7 in 76.923? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  18. 18.1.43 + 4.1 = ? (a) 1.84 (b) 5.63 (c) 5.43 (d) 5.53
  19. 19.What is the value of the digit 7 in 14.729? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  20. 20.Which is the greatest: 0.2, 0.142, 0.28, 0.045? (a) 0.2 (b) 0.142 (c) 0.28 (d) 0.045
  21. 21.2.75 + 8.9 = ? (a) 3.64 (b) 11.75 (c) 11.65 (d) 11.55
  22. 22.What is the value of the digit 5 in 61.325? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  23. 23.What is the value of the digit 3 in 53.619? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  24. 24.Which is the greatest: 0.428, 0.5, 0.51, 0.036? (a) 0.428 (b) 0.5 (c) 0.51 (d) 0.036
  25. 25.4.54 + 4.2 = ? (a) 8.84 (b) 8.64 (c) 8.74 (d) 4.96
  26. 26.What is the value of the digit 3 in 23.679? (a) 0.3 (b) 3 (c) 30 (d) 0.03
  27. 27.8.91 + 2.3 = ? (a) 9.14 (b) 11.31 (c) 11.21 (d) 11.11
  28. 28.Which is the smallest: 0.71, 0.625, 0.092, 0.7? (a) 0.71 (b) 0.625 (c) 0.092 (d) 0.7
  29. 29.Which is the smallest: 0.022, 0.88, 0.8, 0.782? (a) 0.022 (b) 0.88 (c) 0.8 (d) 0.782
  30. 30.Which is the smallest: 0.262, 0.35, 0.3, 0.011? (a) 0.262 (b) 0.35 (c) 0.3 (d) 0.011
  31. 31.Which is the smallest: 0.078, 0.3, 0.216, 0.38? (a) 0.078 (b) 0.3 (c) 0.216 (d) 0.38
  32. 32.Which is the smallest: 0.754, 0.88, 0.8, 0.028? (a) 0.754 (b) 0.88 (c) 0.8 (d) 0.028
  33. 33.What is the value of the digit 8 in 96.854? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  34. 34.2.63 + 1.1 = ? (a) 3.83 (b) 3.73 (c) 3.63 (d) 2.74
  35. 35.2.41 + 2.6 = ? (a) 5.11 (b) 4.91 (c) 2.67 (d) 5.01
  36. 36.What is the value of the digit 6 in 79.168? (a) 0.06 (b) 0.6 (c) 6 (d) 0.006
  37. 37.Which is the greatest: 0.32, 0.3, 0.253, 0.097? (a) 0.32 (b) 0.3 (c) 0.253 (d) 0.097
  38. 38.7.93 + 5.1 = ? (a) 12.93 (b) 13.03 (c) 13.13 (d) 8.44
  39. 39.What is the value of the digit 4 in 47.592? (a) 0.4 (b) 0.04 (c) 40 (d) 4
  40. 40.3.68 + 5.4 = ? (a) 4.22 (b) 9.08 (c) 9.18 (d) 8.98

Answer key

  1. 3
  2. 40
  3. 12.65
  4. 11.51
  5. 11.29
  6. 7.59
  7. 0.005
  8. 0.35
  9. 16.27
  10. 0.3
  11. 4.36
  12. 5.26
  13. 0.67
  14. 0.086
  15. 0.074
  16. 3.19
  17. 70
  18. 5.53
  19. 0.7
  20. 0.28
  21. 11.65
  22. 0.005
  23. 3
  24. 0.51
  25. 8.74
  26. 3
  27. 11.21
  28. 0.092
  29. 0.022
  30. 0.011
  31. 0.078
  32. 0.028
  33. 0.8
  34. 3.73
  35. 5.01
  36. 0.06
  37. 0.32
  38. 13.03
  39. 40
  40. 9.08

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