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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 410 · 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 9 in 14.539? (a) 0.09 (b) 0.009 (c) 0.9 (d) 9
  2. 2.What is the value of the digit 5 in 74.685? (a) 0.05 (b) 0.005 (c) 5 (d) 0.5
  3. 3.Which is the smallest: 0.5, 0.479, 0.58, 0.099? (a) 0.5 (b) 0.479 (c) 0.58 (d) 0.099
  4. 4.Which is the greatest: 0.45, 0.396, 0.099, 0.4? (a) 0.45 (b) 0.396 (c) 0.099 (d) 0.4
  5. 5.6.46 + 3.9 = ? (a) 10.26 (b) 10.46 (c) 10.36 (d) 6.85
  6. 6.4.32 + 1.9 = ? (a) 6.12 (b) 6.32 (c) 4.51 (d) 6.22
  7. 7.What is the value of the digit 3 in 47.382? (a) 0.003 (b) 3 (c) 0.03 (d) 0.3
  8. 8.What is the value of the digit 2 in 82.796? (a) 0.02 (b) 20 (c) 2 (d) 0.2
  9. 9.9.81 + 4.3 = ? (a) 14.01 (b) 10.24 (c) 14.11 (d) 14.21
  10. 10.4.54 + 9.7 = ? (a) 14.34 (b) 14.24 (c) 14.14 (d) 5.51
  11. 11.Which is the smallest: 0.016, 0.4, 0.331, 0.47? (a) 0.016 (b) 0.4 (c) 0.331 (d) 0.47
  12. 12.4.76 + 7.4 = ? (a) 12.06 (b) 12.26 (c) 5.5 (d) 12.16
  13. 13.Which is the smallest: 0.797, 0.84, 0.083, 0.8? (a) 0.797 (b) 0.84 (c) 0.083 (d) 0.8
  14. 14.Which is the greatest: 0.212, 0.051, 0.3, 0.33? (a) 0.212 (b) 0.051 (c) 0.3 (d) 0.33
  15. 15.1.14 + 7.5 = ? (a) 8.54 (b) 8.74 (c) 1.89 (d) 8.64
  16. 16.What is the value of the digit 3 in 51.346? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  17. 17.Which is the greatest: 0.334, 0.4, 0.41, 0.013? (a) 0.334 (b) 0.4 (c) 0.41 (d) 0.013
  18. 18.Which is the greatest: 0.069, 0.6, 0.598, 0.65? (a) 0.069 (b) 0.6 (c) 0.598 (d) 0.65
  19. 19.6.57 + 8.8 = ? (a) 15.47 (b) 15.37 (c) 15.27 (d) 7.45
  20. 20.1.17 + 5.6 = ? (a) 1.73 (b) 6.67 (c) 6.87 (d) 6.77
  21. 21.Which is the greatest: 0.088, 0.538, 0.61, 0.6? (a) 0.088 (b) 0.538 (c) 0.61 (d) 0.6
  22. 22.What is the value of the digit 1 in 51.238? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  23. 23.What is the value of the digit 9 in 89.715? (a) 0.9 (b) 9 (c) 90 (d) 0.09
  24. 24.4.02 + 4.1 = ? (a) 8.22 (b) 8.12 (c) 8.02 (d) 4.43
  25. 25.9.77 + 8.2 = ? (a) 17.87 (b) 17.97 (c) 18.07 (d) 10.59
  26. 26.8.28 + 8.1 = ? (a) 16.48 (b) 9.09 (c) 16.38 (d) 16.28
  27. 27.4.83 + 2.1 = ? (a) 6.83 (b) 5.04 (c) 6.93 (d) 7.03
  28. 28.Which is the greatest: 0.513, 0.67, 0.6, 0.096? (a) 0.513 (b) 0.67 (c) 0.6 (d) 0.096
  29. 29.2.11 + 3.7 = ? (a) 5.91 (b) 5.81 (c) 5.71 (d) 2.48
  30. 30.1.82 + 7.9 = ? (a) 9.62 (b) 2.61 (c) 9.72 (d) 9.82
  31. 31.1.56 + 2.1 = ? (a) 3.66 (b) 3.56 (c) 1.77 (d) 3.76
  32. 32.6.24 + 2.1 = ? (a) 8.34 (b) 8.44 (c) 8.24 (d) 6.45
  33. 33.3.87 + 3.3 = ? (a) 7.17 (b) 7.27 (c) 4.2 (d) 7.07
  34. 34.What is the value of the digit 5 in 15.364? (a) 50 (b) 0.5 (c) 5 (d) 0.05
  35. 35.Which is the greatest: 0.051, 0.8, 0.88, 0.727? (a) 0.051 (b) 0.8 (c) 0.88 (d) 0.727
  36. 36.9.16 + 6.2 = ? (a) 15.46 (b) 15.26 (c) 15.36 (d) 9.78
  37. 37.4.84 + 3.2 = ? (a) 8.14 (b) 7.94 (c) 5.16 (d) 8.04
  38. 38.Which is the smallest: 0.033, 0.47, 0.354, 0.4? (a) 0.033 (b) 0.47 (c) 0.354 (d) 0.4
  39. 39.6.43 + 4.1 = ? (a) 10.43 (b) 10.53 (c) 6.84 (d) 10.63
  40. 40.9.52 + 4.1 = ? (a) 13.72 (b) 13.62 (c) 13.52 (d) 9.93

Answer key

  1. 0.009
  2. 0.005
  3. 0.099
  4. 0.45
  5. 10.36
  6. 6.22
  7. 0.3
  8. 2
  9. 14.11
  10. 14.24
  11. 0.016
  12. 12.16
  13. 0.083
  14. 0.33
  15. 8.64
  16. 0.3
  17. 0.41
  18. 0.65
  19. 15.37
  20. 6.77
  21. 0.61
  22. 1
  23. 9
  24. 8.12
  25. 17.97
  26. 16.38
  27. 6.93
  28. 0.67
  29. 5.81
  30. 9.72
  31. 3.66
  32. 8.34
  33. 7.17
  34. 5
  35. 0.88
  36. 15.36
  37. 8.04
  38. 0.033
  39. 10.53
  40. 13.62

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