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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 159 · 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 15.297? (a) 0.2 (b) 0.002 (c) 0.02 (d) 2
  2. 2.4.72 + 1.7 = ? (a) 6.32 (b) 6.52 (c) 6.42 (d) 4.89
  3. 3.What is the value of the digit 3 in 74.532? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  4. 4.6.47 + 1.7 = ? (a) 8.07 (b) 6.64 (c) 8.27 (d) 8.17
  5. 5.Which is the greatest: 0.2, 0.076, 0.175, 0.26? (a) 0.2 (b) 0.076 (c) 0.175 (d) 0.26
  6. 6.What is the value of the digit 6 in 65.419? (a) 60 (b) 0.06 (c) 0.6 (d) 6
  7. 7.1.17 + 2.8 = ? (a) 3.87 (b) 3.97 (c) 1.45 (d) 4.07
  8. 8.Which is the greatest: 0.559, 0.6, 0.61, 0.081? (a) 0.559 (b) 0.6 (c) 0.61 (d) 0.081
  9. 9.9.38 + 9.6 = ? (a) 19.08 (b) 10.34 (c) 18.88 (d) 18.98
  10. 10.5.31 + 3.5 = ? (a) 5.66 (b) 8.81 (c) 8.71 (d) 8.91
  11. 11.What is the value of the digit 8 in 62.981? (a) 8 (b) 0.008 (c) 0.8 (d) 0.08
  12. 12.What is the value of the digit 3 in 21.543? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03
  13. 13.2.66 + 9.2 = ? (a) 11.76 (b) 11.96 (c) 3.58 (d) 11.86
  14. 14.Which is the greatest: 0.5, 0.472, 0.57, 0.014? (a) 0.5 (b) 0.472 (c) 0.57 (d) 0.014
  15. 15.Which is the greatest: 0.43, 0.091, 0.324, 0.4? (a) 0.43 (b) 0.091 (c) 0.324 (d) 0.4
  16. 16.Which is the smallest: 0.054, 0.187, 0.21, 0.2? (a) 0.054 (b) 0.187 (c) 0.21 (d) 0.2
  17. 17.What is the value of the digit 8 in 98.271? (a) 0.08 (b) 8 (c) 80 (d) 0.8
  18. 18.2.91 + 8.1 = ? (a) 3.72 (b) 10.91 (c) 11.01 (d) 11.11
  19. 19.What is the value of the digit 7 in 87.631? (a) 0.07 (b) 7 (c) 0.7 (d) 70
  20. 20.What is the value of the digit 2 in 72.196? (a) 20 (b) 2 (c) 0.02 (d) 0.2
  21. 21.What is the value of the digit 1 in 35.186? (a) 0.1 (b) 0.001 (c) 0.01 (d) 1
  22. 22.2.96 + 6.2 = ? (a) 9.26 (b) 9.06 (c) 9.16 (d) 3.58
  23. 23.4.34 + 2.7 = ? (a) 7.04 (b) 6.94 (c) 4.61 (d) 7.14
  24. 24.Which is the greatest: 0.766, 0.89, 0.8, 0.083? (a) 0.766 (b) 0.89 (c) 0.8 (d) 0.083
  25. 25.2.63 + 1.9 = ? (a) 4.43 (b) 2.82 (c) 4.53 (d) 4.63
  26. 26.What is the value of the digit 5 in 58.643? (a) 0.5 (b) 0.05 (c) 5 (d) 50
  27. 27.3.82 + 6.5 = ? (a) 10.22 (b) 4.47 (c) 10.32 (d) 10.42
  28. 28.8.18 + 3.6 = ? (a) 11.88 (b) 8.54 (c) 11.68 (d) 11.78
  29. 29.What is the value of the digit 1 in 45.138? (a) 0.01 (b) 0.1 (c) 0.001 (d) 1
  30. 30.Which is the greatest: 0.36, 0.272, 0.3, 0.068? (a) 0.36 (b) 0.272 (c) 0.3 (d) 0.068
  31. 31.7.15 + 9.2 = ? (a) 8.07 (b) 16.35 (c) 16.25 (d) 16.45
  32. 32.Which is the smallest: 0.8, 0.83, 0.768, 0.055? (a) 0.8 (b) 0.83 (c) 0.768 (d) 0.055
  33. 33.9.59 + 3.5 = ? (a) 9.94 (b) 13.19 (c) 13.09 (d) 12.99
  34. 34.1.14 + 4.1 = ? (a) 1.55 (b) 5.24 (c) 5.34 (d) 5.14
  35. 35.1.52 + 5.9 = ? (a) 7.52 (b) 7.32 (c) 7.42 (d) 2.11
  36. 36.What is the value of the digit 3 in 63.485? (a) 0.03 (b) 3 (c) 0.3 (d) 30
  37. 37.Which is the greatest: 0.7, 0.78, 0.048, 0.684? (a) 0.7 (b) 0.78 (c) 0.048 (d) 0.684
  38. 38.5.69 + 3.1 = ? (a) 8.69 (b) 6 (c) 8.79 (d) 8.89
  39. 39.What is the value of the digit 2 in 23.681? (a) 20 (b) 0.02 (c) 2 (d) 0.2
  40. 40.Which is the smallest: 0.61, 0.067, 0.6, 0.598? (a) 0.61 (b) 0.067 (c) 0.6 (d) 0.598

Answer key

  1. 0.2
  2. 6.42
  3. 0.03
  4. 8.17
  5. 0.26
  6. 60
  7. 3.97
  8. 0.61
  9. 18.98
  10. 8.81
  11. 0.08
  12. 0.003
  13. 11.86
  14. 0.57
  15. 0.43
  16. 0.054
  17. 8
  18. 11.01
  19. 7
  20. 2
  21. 0.1
  22. 9.16
  23. 7.04
  24. 0.89
  25. 4.53
  26. 50
  27. 10.32
  28. 11.78
  29. 0.1
  30. 0.36
  31. 16.35
  32. 0.055
  33. 13.09
  34. 5.24
  35. 7.42
  36. 3
  37. 0.78
  38. 8.79
  39. 20
  40. 0.067

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