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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 495 · 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 5 in 51.498? (a) 0.5 (b) 0.05 (c) 50 (d) 5
  2. 2.What is the value of the digit 6 in 62.354? (a) 6 (b) 0.6 (c) 0.06 (d) 60
  3. 3.7.83 + 3.6 = ? (a) 11.33 (b) 11.53 (c) 11.43 (d) 8.19
  4. 4.What is the value of the digit 4 in 17.524? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  5. 5.1.66 + 7.9 = ? (a) 9.46 (b) 9.66 (c) 2.45 (d) 9.56
  6. 6.2.21 + 7.1 = ? (a) 2.92 (b) 9.41 (c) 9.21 (d) 9.31
  7. 7.3.38 + 2.8 = ? (a) 6.28 (b) 6.18 (c) 6.08 (d) 3.66
  8. 8.8.31 + 9.2 = ? (a) 9.23 (b) 17.41 (c) 17.61 (d) 17.51
  9. 9.What is the value of the digit 1 in 97.412? (a) 0.01 (b) 0.001 (c) 1 (d) 0.1
  10. 10.4.93 + 6.6 = ? (a) 11.63 (b) 11.53 (c) 11.43 (d) 5.59
  11. 11.Which is the greatest: 0.088, 0.3, 0.215, 0.31? (a) 0.088 (b) 0.3 (c) 0.215 (d) 0.31
  12. 12.What is the value of the digit 7 in 92.687? (a) 7 (b) 0.7 (c) 0.07 (d) 0.007
  13. 13.Which is the greatest: 0.095, 0.33, 0.3, 0.219? (a) 0.095 (b) 0.33 (c) 0.3 (d) 0.219
  14. 14.Which is the greatest: 0.087, 0.5, 0.411, 0.52? (a) 0.087 (b) 0.5 (c) 0.411 (d) 0.52
  15. 15.2.41 + 4.1 = ? (a) 2.82 (b) 6.41 (c) 6.51 (d) 6.61
  16. 16.Which is the greatest: 0.415, 0.5, 0.042, 0.54? (a) 0.415 (b) 0.5 (c) 0.042 (d) 0.54
  17. 17.1.57 + 3.8 = ? (a) 5.47 (b) 5.27 (c) 5.37 (d) 1.95
  18. 18.Which is the greatest: 0.7, 0.056, 0.624, 0.75? (a) 0.7 (b) 0.056 (c) 0.624 (d) 0.75
  19. 19.5.21 + 6.1 = ? (a) 11.31 (b) 11.41 (c) 11.21 (d) 5.82
  20. 20.Which is the smallest: 0.558, 0.67, 0.6, 0.027? (a) 0.558 (b) 0.67 (c) 0.6 (d) 0.027
  21. 21.7.17 + 2.1 = ? (a) 9.27 (b) 9.17 (c) 9.37 (d) 7.38
  22. 22.7.33 + 4.3 = ? (a) 11.53 (b) 11.73 (c) 11.63 (d) 7.76
  23. 23.1.64 + 3.5 = ? (a) 5.24 (b) 5.04 (c) 5.14 (d) 1.99
  24. 24.What is the value of the digit 1 in 16.792? (a) 1 (b) 0.01 (c) 10 (d) 0.1
  25. 25.2.04 + 6.9 = ? (a) 9.04 (b) 2.73 (c) 8.94 (d) 8.84
  26. 26.6.79 + 9.1 = ? (a) 15.79 (b) 7.7 (c) 15.99 (d) 15.89
  27. 27.3.66 + 7.8 = ? (a) 4.44 (b) 11.46 (c) 11.36 (d) 11.56
  28. 28.1.62 + 2.8 = ? (a) 4.52 (b) 4.42 (c) 4.32 (d) 1.9
  29. 29.4.59 + 7.2 = ? (a) 11.69 (b) 11.89 (c) 5.31 (d) 11.79
  30. 30.Which is the smallest: 0.63, 0.6, 0.036, 0.526? (a) 0.63 (b) 0.6 (c) 0.036 (d) 0.526
  31. 31.9.51 + 3.5 = ? (a) 9.86 (b) 13.01 (c) 13.11 (d) 12.91
  32. 32.What is the value of the digit 2 in 35.248? (a) 0.02 (b) 0.2 (c) 2 (d) 0.002
  33. 33.Which is the smallest: 0.088, 0.641, 0.7, 0.75? (a) 0.088 (b) 0.641 (c) 0.7 (d) 0.75
  34. 34.What is the value of the digit 6 in 35.964? (a) 6 (b) 0.6 (c) 0.006 (d) 0.06
  35. 35.8.22 + 7.2 = ? (a) 15.32 (b) 15.52 (c) 15.42 (d) 8.94
  36. 36.What is the value of the digit 8 in 91.628? (a) 0.08 (b) 0.8 (c) 8 (d) 0.008
  37. 37.Which is the greatest: 0.298, 0.077, 0.3, 0.33? (a) 0.298 (b) 0.077 (c) 0.3 (d) 0.33
  38. 38.Which is the greatest: 0.5, 0.017, 0.461, 0.59? (a) 0.5 (b) 0.017 (c) 0.461 (d) 0.59
  39. 39.2.38 + 2.7 = ? (a) 4.98 (b) 5.08 (c) 5.18 (d) 2.65
  40. 40.5.57 + 3.6 = ? (a) 5.93 (b) 9.07 (c) 9.27 (d) 9.17

Answer key

  1. 50
  2. 60
  3. 11.43
  4. 0.004
  5. 9.56
  6. 9.31
  7. 6.18
  8. 17.51
  9. 0.01
  10. 11.53
  11. 0.31
  12. 0.007
  13. 0.33
  14. 0.52
  15. 6.51
  16. 0.54
  17. 5.37
  18. 0.75
  19. 11.31
  20. 0.027
  21. 9.27
  22. 11.63
  23. 5.14
  24. 10
  25. 8.94
  26. 15.89
  27. 11.46
  28. 4.42
  29. 11.79
  30. 0.036
  31. 13.01
  32. 0.2
  33. 0.088
  34. 0.06
  35. 15.42
  36. 0.008
  37. 0.33
  38. 0.59
  39. 5.08
  40. 9.17

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