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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 296 · 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. 1.1.11 + 6.1 = ? (a) 7.31 (b) 1.72 (c) 7.11 (d) 7.21
  2. 2.What is the value of the digit 9 in 19.265? (a) 90 (b) 0.09 (c) 9 (d) 0.9
  3. 3.What is the value of the digit 5 in 25.369? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  4. 4.8.76 + 8.5 = ? (a) 17.26 (b) 17.36 (c) 9.61 (d) 17.16
  5. 5.8.97 + 6.1 = ? (a) 14.97 (b) 9.58 (c) 15.07 (d) 15.17
  6. 6.7.33 + 4.1 = ? (a) 11.33 (b) 11.43 (c) 11.53 (d) 7.74
  7. 7.What is the value of the digit 5 in 53.491? (a) 5 (b) 50 (c) 0.05 (d) 0.5
  8. 8.4.41 + 6.7 = ? (a) 5.08 (b) 11.01 (c) 11.11 (d) 11.21
  9. 9.3.52 + 4.6 = ? (a) 8.22 (b) 3.98 (c) 8.12 (d) 8.02
  10. 10.Which is the smallest: 0.8, 0.82, 0.755, 0.095? (a) 0.8 (b) 0.82 (c) 0.755 (d) 0.095
  11. 11.5.59 + 4.6 = ? (a) 10.09 (b) 6.05 (c) 10.19 (d) 10.29
  12. 12.4.11 + 9.7 = ? (a) 5.08 (b) 13.91 (c) 13.71 (d) 13.81
  13. 13.8.44 + 2.2 = ? (a) 8.66 (b) 10.64 (c) 10.74 (d) 10.54
  14. 14.6.77 + 6.2 = ? (a) 12.97 (b) 13.07 (c) 12.87 (d) 7.39
  15. 15.2.73 + 5.3 = ? (a) 8.13 (b) 8.03 (c) 3.26 (d) 7.93
  16. 16.9.16 + 5.6 = ? (a) 14.76 (b) 14.66 (c) 9.72 (d) 14.86
  17. 17.Which is the greatest: 0.489, 0.51, 0.037, 0.5? (a) 0.489 (b) 0.51 (c) 0.037 (d) 0.5
  18. 18.Which is the greatest: 0.042, 0.35, 0.3, 0.297? (a) 0.042 (b) 0.35 (c) 0.3 (d) 0.297
  19. 19.What is the value of the digit 1 in 91.648? (a) 0.01 (b) 10 (c) 1 (d) 0.1
  20. 20.Which is the greatest: 0.762, 0.84, 0.023, 0.8? (a) 0.762 (b) 0.84 (c) 0.023 (d) 0.8
  21. 21.5.85 + 4.1 = ? (a) 6.26 (b) 9.85 (c) 10.05 (d) 9.95
  22. 22.Which is the greatest: 0.676, 0.73, 0.7, 0.042? (a) 0.676 (b) 0.73 (c) 0.7 (d) 0.042
  23. 23.6.41 + 9.2 = ? (a) 7.33 (b) 15.51 (c) 15.61 (d) 15.71
  24. 24.What is the value of the digit 9 in 25.987? (a) 0.009 (b) 0.9 (c) 0.09 (d) 9
  25. 25.Which is the smallest: 0.57, 0.058, 0.425, 0.5? (a) 0.57 (b) 0.058 (c) 0.425 (d) 0.5
  26. 26.Which is the smallest: 0.016, 0.437, 0.52, 0.5? (a) 0.016 (b) 0.437 (c) 0.52 (d) 0.5
  27. 27.Which is the smallest: 0.696, 0.7, 0.064, 0.75? (a) 0.696 (b) 0.7 (c) 0.064 (d) 0.75
  28. 28.What is the value of the digit 5 in 51.746? (a) 5 (b) 0.5 (c) 0.05 (d) 50
  29. 29.What is the value of the digit 3 in 26.183? (a) 0.03 (b) 0.3 (c) 0.003 (d) 3
  30. 30.What is the value of the digit 1 in 21.436? (a) 0.01 (b) 10 (c) 1 (d) 0.1
  31. 31.6.53 + 2.1 = ? (a) 8.53 (b) 6.74 (c) 8.63 (d) 8.73
  32. 32.Which is the greatest: 0.077, 0.575, 0.61, 0.6? (a) 0.077 (b) 0.575 (c) 0.61 (d) 0.6
  33. 33.Which is the smallest: 0.8, 0.099, 0.89, 0.781? (a) 0.8 (b) 0.099 (c) 0.89 (d) 0.781
  34. 34.9.51 + 7.6 = ? (a) 17.01 (b) 17.21 (c) 10.27 (d) 17.11
  35. 35.What is the value of the digit 1 in 17.924? (a) 1 (b) 0.1 (c) 0.01 (d) 10
  36. 36.Which is the greatest: 0.127, 0.058, 0.25, 0.2? (a) 0.127 (b) 0.058 (c) 0.25 (d) 0.2
  37. 37.What is the value of the digit 4 in 41.259? (a) 0.04 (b) 40 (c) 0.4 (d) 4
  38. 38.Which is the smallest: 0.096, 0.3, 0.37, 0.228? (a) 0.096 (b) 0.3 (c) 0.37 (d) 0.228
  39. 39.1.23 + 7.3 = ? (a) 8.43 (b) 8.53 (c) 1.96 (d) 8.63
  40. 40.What is the value of the digit 1 in 17.524? (a) 0.01 (b) 1 (c) 0.1 (d) 10

Answer key

  1. 7.21
  2. 9
  3. 5
  4. 17.26
  5. 15.07
  6. 11.43
  7. 50
  8. 11.11
  9. 8.12
  10. 0.095
  11. 10.19
  12. 13.81
  13. 10.64
  14. 12.97
  15. 8.03
  16. 14.76
  17. 0.51
  18. 0.35
  19. 1
  20. 0.84
  21. 9.95
  22. 0.73
  23. 15.61
  24. 0.9
  25. 0.058
  26. 0.016
  27. 0.064
  28. 50
  29. 0.003
  30. 1
  31. 8.63
  32. 0.61
  33. 0.099
  34. 17.11
  35. 10
  36. 0.25
  37. 40
  38. 0.096
  39. 8.53
  40. 10

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