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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 283 · 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: 0.037, 0.77, 0.7, 0.645? (a) 0.037 (b) 0.77 (c) 0.7 (d) 0.645
  2. 2.What is the value of the digit 6 in 46.398? (a) 0.06 (b) 60 (c) 6 (d) 0.6
  3. 3.1.59 + 4.1 = ? (a) 5.59 (b) 2 (c) 5.79 (d) 5.69
  4. 4.Which is the greatest: 0.6, 0.568, 0.034, 0.69? (a) 0.6 (b) 0.568 (c) 0.034 (d) 0.69
  5. 5.8.65 + 1.8 = ? (a) 10.35 (b) 10.55 (c) 8.83 (d) 10.45
  6. 6.What is the value of the digit 1 in 19.467? (a) 0.01 (b) 10 (c) 1 (d) 0.1
  7. 7.What is the value of the digit 4 in 42.319? (a) 40 (b) 0.4 (c) 0.04 (d) 4
  8. 8.Which is the greatest: 0.022, 0.3, 0.212, 0.33? (a) 0.022 (b) 0.3 (c) 0.212 (d) 0.33
  9. 9.What is the value of the digit 3 in 25.396? (a) 0.3 (b) 0.03 (c) 3 (d) 0.003
  10. 10.What is the value of the digit 9 in 97.152? (a) 0.9 (b) 90 (c) 9 (d) 0.09
  11. 11.What is the value of the digit 8 in 58.479? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  12. 12.Which is the smallest: 0.55, 0.087, 0.447, 0.5? (a) 0.55 (b) 0.087 (c) 0.447 (d) 0.5
  13. 13.9.29 + 2.9 = ? (a) 12.09 (b) 12.19 (c) 12.29 (d) 9.58
  14. 14.4.99 + 9.1 = ? (a) 13.99 (b) 14.19 (c) 14.09 (d) 5.9
  15. 15.7.82 + 8.4 = ? (a) 16.12 (b) 8.66 (c) 16.22 (d) 16.32
  16. 16.2.63 + 7.5 = ? (a) 10.03 (b) 10.23 (c) 10.13 (d) 3.38
  17. 17.What is the value of the digit 2 in 31.492? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  18. 18.9.94 + 3.4 = ? (a) 13.44 (b) 13.24 (c) 13.34 (d) 10.28
  19. 19.What is the value of the digit 7 in 78.536? (a) 70 (b) 0.7 (c) 0.07 (d) 7
  20. 20.What is the value of the digit 9 in 71.923? (a) 0.09 (b) 0.009 (c) 9 (d) 0.9
  21. 21.Which is the smallest: 0.054, 0.483, 0.5, 0.51? (a) 0.054 (b) 0.483 (c) 0.5 (d) 0.51
  22. 22.Which is the smallest: 0.076, 0.2, 0.199, 0.23? (a) 0.076 (b) 0.2 (c) 0.199 (d) 0.23
  23. 23.What is the value of the digit 7 in 37.214? (a) 7 (b) 0.7 (c) 70 (d) 0.07
  24. 24.What is the value of the digit 2 in 26.419? (a) 0.02 (b) 20 (c) 0.2 (d) 2
  25. 25.What is the value of the digit 4 in 14.358? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  26. 26.Which is the greatest: 0.89, 0.019, 0.739, 0.8? (a) 0.89 (b) 0.019 (c) 0.739 (d) 0.8
  27. 27.What is the value of the digit 1 in 38.124? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  28. 28.3.88 + 8.3 = ? (a) 12.08 (b) 12.18 (c) 4.71 (d) 12.28
  29. 29.1.15 + 1.1 = ? (a) 2.35 (b) 2.15 (c) 1.26 (d) 2.25
  30. 30.Which is the smallest: 0.462, 0.045, 0.5, 0.51? (a) 0.462 (b) 0.045 (c) 0.5 (d) 0.51
  31. 31.7.35 + 3.6 = ? (a) 10.95 (b) 7.71 (c) 11.05 (d) 10.85
  32. 32.Which is the greatest: 0.726, 0.83, 0.045, 0.8? (a) 0.726 (b) 0.83 (c) 0.045 (d) 0.8
  33. 33.5.91 + 3.4 = ? (a) 9.41 (b) 9.21 (c) 9.31 (d) 6.25
  34. 34.What is the value of the digit 4 in 65.984? (a) 0.004 (b) 0.4 (c) 4 (d) 0.04
  35. 35.Which is the smallest: 0.048, 0.42, 0.351, 0.4? (a) 0.048 (b) 0.42 (c) 0.351 (d) 0.4
  36. 36.3.06 + 7.5 = ? (a) 10.66 (b) 10.46 (c) 3.81 (d) 10.56
  37. 37.Which is the greatest: 0.016, 0.4, 0.41, 0.336? (a) 0.016 (b) 0.4 (c) 0.41 (d) 0.336
  38. 38.Which is the greatest: 0.5, 0.031, 0.457, 0.51? (a) 0.5 (b) 0.031 (c) 0.457 (d) 0.51
  39. 39.7.71 + 4.7 = ? (a) 8.18 (b) 12.31 (c) 12.51 (d) 12.41
  40. 40.What is the value of the digit 8 in 96.185? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08

Answer key

  1. 0.037
  2. 6
  3. 5.69
  4. 0.69
  5. 10.45
  6. 10
  7. 40
  8. 0.33
  9. 0.3
  10. 90
  11. 8
  12. 0.087
  13. 12.19
  14. 14.09
  15. 16.22
  16. 10.13
  17. 0.002
  18. 13.34
  19. 70
  20. 0.9
  21. 0.054
  22. 0.076
  23. 7
  24. 20
  25. 4
  26. 0.89
  27. 0.1
  28. 12.18
  29. 2.25
  30. 0.045
  31. 10.95
  32. 0.83
  33. 9.31
  34. 0.004
  35. 0.048
  36. 10.56
  37. 0.41
  38. 0.51
  39. 12.41
  40. 0.08

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