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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 98 · 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 greatest: 0.57, 0.484, 0.5, 0.087? (a) 0.57 (b) 0.484 (c) 0.5 (d) 0.087
  2. 2.Which is the greatest: 0.4, 0.051, 0.42, 0.341? (a) 0.4 (b) 0.051 (c) 0.42 (d) 0.341
  3. 3.What is the value of the digit 8 in 91.684? (a) 0.08 (b) 0.008 (c) 0.8 (d) 8
  4. 4.Which is the greatest: 0.66, 0.6, 0.081, 0.582? (a) 0.66 (b) 0.6 (c) 0.081 (d) 0.582
  5. 5.1.62 + 6.3 = ? (a) 7.92 (b) 7.82 (c) 2.25 (d) 8.02
  6. 6.4.56 + 3.7 = ? (a) 4.93 (b) 8.16 (c) 8.36 (d) 8.26
  7. 7.6.03 + 9.6 = ? (a) 6.99 (b) 15.53 (c) 15.73 (d) 15.63
  8. 8.Which is the greatest: 0.034, 0.41, 0.4, 0.392? (a) 0.034 (b) 0.41 (c) 0.4 (d) 0.392
  9. 9.Which is the greatest: 0.25, 0.053, 0.178, 0.2? (a) 0.25 (b) 0.053 (c) 0.178 (d) 0.2
  10. 10.What is the value of the digit 5 in 25.419? (a) 0.5 (b) 50 (c) 5 (d) 0.05
  11. 11.Which is the smallest: 0.37, 0.077, 0.3, 0.212? (a) 0.37 (b) 0.077 (c) 0.3 (d) 0.212
  12. 12.What is the value of the digit 6 in 46.853? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  13. 13.5.82 + 2.3 = ? (a) 8.02 (b) 8.12 (c) 6.05 (d) 8.22
  14. 14.Which is the greatest: 0.469, 0.51, 0.5, 0.062? (a) 0.469 (b) 0.51 (c) 0.5 (d) 0.062
  15. 15.8.48 + 4.1 = ? (a) 8.89 (b) 12.48 (c) 12.68 (d) 12.58
  16. 16.Which is the smallest: 0.422, 0.018, 0.59, 0.5? (a) 0.422 (b) 0.018 (c) 0.59 (d) 0.5
  17. 17.What is the value of the digit 5 in 98.235? (a) 5 (b) 0.5 (c) 0.005 (d) 0.05
  18. 18.2.01 + 4.2 = ? (a) 6.21 (b) 2.43 (c) 6.11 (d) 6.31
  19. 19.What is the value of the digit 1 in 53.197? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  20. 20.What is the value of the digit 2 in 91.245? (a) 0.2 (b) 0.02 (c) 2 (d) 0.002
  21. 21.2.34 + 9.3 = ? (a) 11.74 (b) 3.27 (c) 11.54 (d) 11.64
  22. 22.What is the value of the digit 1 in 69.721? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  23. 23.Which is the greatest: 0.53, 0.5, 0.055, 0.452? (a) 0.53 (b) 0.5 (c) 0.055 (d) 0.452
  24. 24.Which is the greatest: 0.517, 0.6, 0.61, 0.018? (a) 0.517 (b) 0.6 (c) 0.61 (d) 0.018
  25. 25.What is the value of the digit 3 in 85.732? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  26. 26.8.07 + 1.2 = ? (a) 9.27 (b) 9.37 (c) 9.17 (d) 8.19
  27. 27.5.74 + 2.6 = ? (a) 8.34 (b) 8.24 (c) 6 (d) 8.44
  28. 28.Which is the greatest: 0.5, 0.047, 0.444, 0.56? (a) 0.5 (b) 0.047 (c) 0.444 (d) 0.56
  29. 29.Which is the greatest: 0.521, 0.63, 0.029, 0.6? (a) 0.521 (b) 0.63 (c) 0.029 (d) 0.6
  30. 30.What is the value of the digit 8 in 83.652? (a) 80 (b) 0.8 (c) 8 (d) 0.08
  31. 31.Which is the smallest: 0.028, 0.7, 0.651, 0.71? (a) 0.028 (b) 0.7 (c) 0.651 (d) 0.71
  32. 32.3.58 + 3.6 = ? (a) 7.18 (b) 7.08 (c) 3.94 (d) 7.28
  33. 33.What is the value of the digit 5 in 95.473? (a) 50 (b) 0.05 (c) 5 (d) 0.5
  34. 34.Which is the greatest: 0.7, 0.088, 0.632, 0.73? (a) 0.7 (b) 0.088 (c) 0.632 (d) 0.73
  35. 35.Which is the smallest: 0.475, 0.51, 0.054, 0.5? (a) 0.475 (b) 0.51 (c) 0.054 (d) 0.5
  36. 36.9.19 + 4.7 = ? (a) 13.79 (b) 13.89 (c) 9.66 (d) 13.99
  37. 37.What is the value of the digit 1 in 16.248? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  38. 38.Which is the greatest: 0.031, 0.89, 0.8, 0.755? (a) 0.031 (b) 0.89 (c) 0.8 (d) 0.755
  39. 39.Which is the smallest: 0.012, 0.79, 0.7, 0.633? (a) 0.012 (b) 0.79 (c) 0.7 (d) 0.633
  40. 40.9.84 + 9.6 = ? (a) 10.8 (b) 19.44 (c) 19.34 (d) 19.54

Answer key

  1. 0.57
  2. 0.42
  3. 0.08
  4. 0.66
  5. 7.92
  6. 8.26
  7. 15.63
  8. 0.41
  9. 0.25
  10. 5
  11. 0.077
  12. 6
  13. 8.12
  14. 0.51
  15. 12.58
  16. 0.018
  17. 0.005
  18. 6.21
  19. 0.1
  20. 0.2
  21. 11.64
  22. 0.001
  23. 0.53
  24. 0.61
  25. 0.03
  26. 9.27
  27. 8.34
  28. 0.56
  29. 0.63
  30. 80
  31. 0.028
  32. 7.18
  33. 5
  34. 0.73
  35. 0.054
  36. 13.89
  37. 10
  38. 0.89
  39. 0.012
  40. 19.44

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