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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 565 · 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. 1.9.88 + 5.8 = ? (a) 10.46 (b) 15.58 (c) 15.78 (d) 15.68
  2. 2.Which is the smallest: 0.45, 0.4, 0.375, 0.051? (a) 0.45 (b) 0.4 (c) 0.375 (d) 0.051
  3. 3.Which is the greatest: 0.71, 0.065, 0.7, 0.661? (a) 0.71 (b) 0.065 (c) 0.7 (d) 0.661
  4. 4.What is the value of the digit 1 in 36.918? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  5. 5.What is the value of the digit 3 in 67.453? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  6. 6.Which is the greatest: 0.337, 0.4, 0.46, 0.028? (a) 0.337 (b) 0.4 (c) 0.46 (d) 0.028
  7. 7.2.67 + 2.7 = ? (a) 5.27 (b) 2.94 (c) 5.37 (d) 5.47
  8. 8.Which is the smallest: 0.5, 0.035, 0.431, 0.54? (a) 0.5 (b) 0.035 (c) 0.431 (d) 0.54
  9. 9.What is the value of the digit 9 in 59.318? (a) 90 (b) 9 (c) 0.9 (d) 0.09
  10. 10.What is the value of the digit 2 in 12.546? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  11. 11.Which is the greatest: 0.3, 0.218, 0.36, 0.092? (a) 0.3 (b) 0.218 (c) 0.36 (d) 0.092
  12. 12.What is the value of the digit 1 in 32.718? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  13. 13.What is the value of the digit 2 in 56.248? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  14. 14.2.45 + 6.6 = ? (a) 9.05 (b) 3.11 (c) 8.95 (d) 9.15
  15. 15.Which is the greatest: 0.414, 0.59, 0.058, 0.5? (a) 0.414 (b) 0.59 (c) 0.058 (d) 0.5
  16. 16.Which is the smallest: 0.182, 0.26, 0.023, 0.2? (a) 0.182 (b) 0.26 (c) 0.023 (d) 0.2
  17. 17.Which is the smallest: 0.643, 0.017, 0.7, 0.72? (a) 0.643 (b) 0.017 (c) 0.7 (d) 0.72
  18. 18.5.57 + 4.4 = ? (a) 9.97 (b) 9.87 (c) 6.01 (d) 10.07
  19. 19.What is the value of the digit 5 in 12.658? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  20. 20.Which is the greatest: 0.596, 0.68, 0.6, 0.077? (a) 0.596 (b) 0.68 (c) 0.6 (d) 0.077
  21. 21.Which is the smallest: 0.21, 0.2, 0.074, 0.187? (a) 0.21 (b) 0.2 (c) 0.074 (d) 0.187
  22. 22.What is the value of the digit 7 in 74.196? (a) 70 (b) 0.7 (c) 0.07 (d) 7
  23. 23.What is the value of the digit 6 in 13.654? (a) 0.006 (b) 0.06 (c) 0.6 (d) 6
  24. 24.Which is the smallest: 0.099, 0.84, 0.8, 0.729? (a) 0.099 (b) 0.84 (c) 0.8 (d) 0.729
  25. 25.Which is the smallest: 0.71, 0.081, 0.637, 0.7? (a) 0.71 (b) 0.081 (c) 0.637 (d) 0.7
  26. 26.What is the value of the digit 1 in 81.394? (a) 10 (b) 0.01 (c) 0.1 (d) 1
  27. 27.Which is the greatest: 0.034, 0.136, 0.24, 0.2? (a) 0.034 (b) 0.136 (c) 0.24 (d) 0.2
  28. 28.What is the value of the digit 1 in 41.693? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  29. 29.8.81 + 5.2 = ? (a) 13.91 (b) 14.11 (c) 14.01 (d) 9.33
  30. 30.9.01 + 8.1 = ? (a) 17.11 (b) 9.82 (c) 17.21 (d) 17.01
  31. 31.7.57 + 8.5 = ? (a) 15.97 (b) 16.07 (c) 8.42 (d) 16.17
  32. 32.What is the value of the digit 8 in 68.247? (a) 0.08 (b) 8 (c) 0.8 (d) 80
  33. 33.Which is the greatest: 0.032, 0.242, 0.3, 0.33? (a) 0.032 (b) 0.242 (c) 0.3 (d) 0.33
  34. 34.What is the value of the digit 7 in 27.583? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  35. 35.Which is the greatest: 0.5, 0.59, 0.442, 0.035? (a) 0.5 (b) 0.59 (c) 0.442 (d) 0.035
  36. 36.What is the value of the digit 3 in 69.213? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  37. 37.5.93 + 7.8 = ? (a) 6.71 (b) 13.73 (c) 13.83 (d) 13.63
  38. 38.What is the value of the digit 5 in 61.753? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  39. 39.Which is the greatest: 0.2, 0.076, 0.21, 0.134? (a) 0.2 (b) 0.076 (c) 0.21 (d) 0.134
  40. 40.Which is the greatest: 0.025, 0.32, 0.249, 0.3? (a) 0.025 (b) 0.32 (c) 0.249 (d) 0.3

Answer key

  1. 15.68
  2. 0.051
  3. 0.71
  4. 0.01
  5. 0.003
  6. 0.46
  7. 5.37
  8. 0.035
  9. 9
  10. 2
  11. 0.36
  12. 0.01
  13. 0.2
  14. 9.05
  15. 0.59
  16. 0.023
  17. 0.017
  18. 9.97
  19. 0.05
  20. 0.68
  21. 0.074
  22. 70
  23. 0.6
  24. 0.099
  25. 0.081
  26. 1
  27. 0.24
  28. 1
  29. 14.01
  30. 17.11
  31. 16.07
  32. 8
  33. 0.33
  34. 7
  35. 0.59
  36. 0.003
  37. 13.73
  38. 0.05
  39. 0.21
  40. 0.32

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