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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 682 · 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 6 in 54.671? (a) 6 (b) 0.006 (c) 0.06 (d) 0.6
  2. 2.Which is the greatest: 0.53, 0.043, 0.473, 0.5? (a) 0.53 (b) 0.043 (c) 0.473 (d) 0.5
  3. 3.Which is the greatest: 0.431, 0.53, 0.013, 0.5? (a) 0.431 (b) 0.53 (c) 0.013 (d) 0.5
  4. 4.2.91 + 5.7 = ? (a) 8.71 (b) 8.61 (c) 3.48 (d) 8.51
  5. 5.6.58 + 5.8 = ? (a) 7.16 (b) 12.28 (c) 12.38 (d) 12.48
  6. 6.What is the value of the digit 8 in 87.629? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  7. 7.3.88 + 6.1 = ? (a) 9.98 (b) 10.08 (c) 9.88 (d) 4.49
  8. 8.What is the value of the digit 1 in 91.264? (a) 10 (b) 1 (c) 0.1 (d) 0.01
  9. 9.Which is the smallest: 0.2, 0.014, 0.172, 0.26? (a) 0.2 (b) 0.014 (c) 0.172 (d) 0.26
  10. 10.1.46 + 9.2 = ? (a) 10.76 (b) 2.38 (c) 10.66 (d) 10.56
  11. 11.5.12 + 2.8 = ? (a) 5.4 (b) 7.92 (c) 8.02 (d) 7.82
  12. 12.3.47 + 2.1 = ? (a) 5.67 (b) 5.57 (c) 3.68 (d) 5.47
  13. 13.Which is the smallest: 0.31, 0.3, 0.024, 0.227? (a) 0.31 (b) 0.3 (c) 0.024 (d) 0.227
  14. 14.What is the value of the digit 5 in 21.395? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  15. 15.What is the value of the digit 8 in 86.734? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  16. 16.5.92 + 4.2 = ? (a) 10.12 (b) 10.22 (c) 6.34 (d) 10.02
  17. 17.Which is the smallest: 0.038, 0.157, 0.26, 0.2? (a) 0.038 (b) 0.157 (c) 0.26 (d) 0.2
  18. 18.5.86 + 5.7 = ? (a) 11.46 (b) 11.66 (c) 6.43 (d) 11.56
  19. 19.What is the value of the digit 4 in 16.942? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  20. 20.What is the value of the digit 1 in 91.435? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  21. 21.8.33 + 1.1 = ? (a) 9.33 (b) 9.53 (c) 9.43 (d) 8.44
  22. 22.Which is the greatest: 0.4, 0.362, 0.49, 0.041? (a) 0.4 (b) 0.362 (c) 0.49 (d) 0.041
  23. 23.8.79 + 7.2 = ? (a) 15.89 (b) 15.99 (c) 9.51 (d) 16.09
  24. 24.Which is the greatest: 0.2, 0.176, 0.026, 0.29? (a) 0.2 (b) 0.176 (c) 0.026 (d) 0.29
  25. 25.What is the value of the digit 2 in 37.524? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  26. 26.Which is the smallest: 0.84, 0.033, 0.8, 0.779? (a) 0.84 (b) 0.033 (c) 0.8 (d) 0.779
  27. 27.Which is the smallest: 0.112, 0.2, 0.24, 0.096? (a) 0.112 (b) 0.2 (c) 0.24 (d) 0.096
  28. 28.Which is the smallest: 0.465, 0.061, 0.56, 0.5? (a) 0.465 (b) 0.061 (c) 0.56 (d) 0.5
  29. 29.6.49 + 9.1 = ? (a) 7.4 (b) 15.59 (c) 15.69 (d) 15.49
  30. 30.Which is the smallest: 0.89, 0.718, 0.8, 0.048? (a) 0.89 (b) 0.718 (c) 0.8 (d) 0.048
  31. 31.Which is the greatest: 0.392, 0.42, 0.089, 0.4? (a) 0.392 (b) 0.42 (c) 0.089 (d) 0.4
  32. 32.What is the value of the digit 3 in 15.376? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  33. 33.5.98 + 2.3 = ? (a) 8.18 (b) 8.28 (c) 8.38 (d) 6.21
  34. 34.What is the value of the digit 4 in 97.254? (a) 0.004 (b) 0.4 (c) 4 (d) 0.04
  35. 35.What is the value of the digit 5 in 15.482? (a) 50 (b) 0.05 (c) 0.5 (d) 5
  36. 36.4.61 + 1.6 = ? (a) 6.11 (b) 4.77 (c) 6.21 (d) 6.31
  37. 37.What is the value of the digit 3 in 12.385? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  38. 38.3.84 + 4.1 = ? (a) 8.04 (b) 7.94 (c) 4.25 (d) 7.84
  39. 39.9.07 + 3.5 = ? (a) 12.57 (b) 12.67 (c) 12.47 (d) 9.42
  40. 40.4.65 + 3.4 = ? (a) 7.95 (b) 8.15 (c) 4.99 (d) 8.05

Answer key

  1. 0.6
  2. 0.53
  3. 0.53
  4. 8.61
  5. 12.38
  6. 80
  7. 9.98
  8. 1
  9. 0.014
  10. 10.66
  11. 7.92
  12. 5.57
  13. 0.024
  14. 0.005
  15. 80
  16. 10.12
  17. 0.038
  18. 11.56
  19. 0.04
  20. 1
  21. 9.43
  22. 0.49
  23. 15.99
  24. 0.29
  25. 0.02
  26. 0.033
  27. 0.096
  28. 0.061
  29. 15.59
  30. 0.048
  31. 0.42
  32. 0.3
  33. 8.28
  34. 0.004
  35. 5
  36. 6.21
  37. 0.3
  38. 7.94
  39. 12.57
  40. 8.05

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