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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 517 · 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. 1.3.75 + 8.6 = ? (a) 4.61 (b) 12.35 (c) 12.45 (d) 12.25
  2. 2.Which is the greatest: 0.75, 0.096, 0.7, 0.656? (a) 0.75 (b) 0.096 (c) 0.7 (d) 0.656
  3. 3.Which is the smallest: 0.8, 0.796, 0.87, 0.094? (a) 0.8 (b) 0.796 (c) 0.87 (d) 0.094
  4. 4.Which is the smallest: 0.22, 0.175, 0.2, 0.037? (a) 0.22 (b) 0.175 (c) 0.2 (d) 0.037
  5. 5.9.91 + 5.9 = ? (a) 15.71 (b) 15.91 (c) 15.81 (d) 10.5
  6. 6.2.12 + 2.1 = ? (a) 4.12 (b) 4.22 (c) 2.33 (d) 4.32
  7. 7.8.59 + 5.9 = ? (a) 9.18 (b) 14.49 (c) 14.59 (d) 14.39
  8. 8.What is the value of the digit 9 in 25.918? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  9. 9.Which is the greatest: 0.54, 0.496, 0.014, 0.5? (a) 0.54 (b) 0.496 (c) 0.014 (d) 0.5
  10. 10.Which is the smallest: 0.432, 0.059, 0.52, 0.5? (a) 0.432 (b) 0.059 (c) 0.52 (d) 0.5
  11. 11.Which is the smallest: 0.039, 0.8, 0.81, 0.736? (a) 0.039 (b) 0.8 (c) 0.81 (d) 0.736
  12. 12.What is the value of the digit 7 in 26.758? (a) 0.07 (b) 0.007 (c) 7 (d) 0.7
  13. 13.Which is the smallest: 0.7, 0.094, 0.71, 0.646? (a) 0.7 (b) 0.094 (c) 0.71 (d) 0.646
  14. 14.What is the value of the digit 4 in 94.815? (a) 40 (b) 0.4 (c) 4 (d) 0.04
  15. 15.3.42 + 6.5 = ? (a) 9.82 (b) 4.07 (c) 10.02 (d) 9.92
  16. 16.6.43 + 2.2 = ? (a) 8.63 (b) 8.53 (c) 6.65 (d) 8.73
  17. 17.What is the value of the digit 5 in 54.892? (a) 50 (b) 5 (c) 0.5 (d) 0.05
  18. 18.What is the value of the digit 1 in 93.512? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  19. 19.What is the value of the digit 3 in 19.243? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  20. 20.1.44 + 2.9 = ? (a) 4.24 (b) 4.34 (c) 4.44 (d) 1.73
  21. 21.3.25 + 1.5 = ? (a) 4.85 (b) 4.65 (c) 3.4 (d) 4.75
  22. 22.What is the value of the digit 8 in 92.385? (a) 0.08 (b) 0.008 (c) 0.8 (d) 8
  23. 23.4.47 + 4.2 = ? (a) 8.77 (b) 4.89 (c) 8.67 (d) 8.57
  24. 24.4.44 + 6.1 = ? (a) 10.64 (b) 10.44 (c) 10.54 (d) 5.05
  25. 25.What is the value of the digit 2 in 62.394? (a) 2 (b) 20 (c) 0.02 (d) 0.2
  26. 26.1.77 + 1.5 = ? (a) 3.37 (b) 3.27 (c) 3.17 (d) 1.92
  27. 27.Which is the greatest: 0.59, 0.038, 0.5, 0.414? (a) 0.59 (b) 0.038 (c) 0.5 (d) 0.414
  28. 28.Which is the greatest: 0.216, 0.3, 0.35, 0.043? (a) 0.216 (b) 0.3 (c) 0.35 (d) 0.043
  29. 29.2.31 + 2.8 = ? (a) 5.21 (b) 5.11 (c) 5.01 (d) 2.59
  30. 30.What is the value of the digit 5 in 98.156? (a) 0.005 (b) 5 (c) 0.5 (d) 0.05
  31. 31.Which is the smallest: 0.058, 0.289, 0.3, 0.34? (a) 0.058 (b) 0.289 (c) 0.3 (d) 0.34
  32. 32.Which is the smallest: 0.013, 0.55, 0.433, 0.5? (a) 0.013 (b) 0.55 (c) 0.433 (d) 0.5
  33. 33.Which is the greatest: 0.8, 0.792, 0.89, 0.099? (a) 0.8 (b) 0.792 (c) 0.89 (d) 0.099
  34. 34.8.51 + 1.4 = ? (a) 9.81 (b) 8.65 (c) 9.91 (d) 10.01
  35. 35.1.39 + 8.1 = ? (a) 9.39 (b) 9.49 (c) 2.2 (d) 9.59
  36. 36.1.86 + 2.7 = ? (a) 4.56 (b) 4.46 (c) 2.13 (d) 4.66
  37. 37.2.34 + 9.1 = ? (a) 11.54 (b) 11.44 (c) 3.25 (d) 11.34
  38. 38.Which is the smallest: 0.472, 0.046, 0.5, 0.55? (a) 0.472 (b) 0.046 (c) 0.5 (d) 0.55
  39. 39.What is the value of the digit 4 in 41.537? (a) 4 (b) 40 (c) 0.4 (d) 0.04
  40. 40.What is the value of the digit 7 in 53.827? (a) 0.07 (b) 0.007 (c) 7 (d) 0.7

Answer key

  1. 12.35
  2. 0.75
  3. 0.094
  4. 0.037
  5. 15.81
  6. 4.22
  7. 14.49
  8. 0.9
  9. 0.54
  10. 0.059
  11. 0.039
  12. 0.7
  13. 0.094
  14. 4
  15. 9.92
  16. 8.63
  17. 50
  18. 0.01
  19. 0.003
  20. 4.34
  21. 4.75
  22. 0.08
  23. 8.67
  24. 10.54
  25. 2
  26. 3.27
  27. 0.59
  28. 0.35
  29. 5.11
  30. 0.05
  31. 0.058
  32. 0.013
  33. 0.89
  34. 9.91
  35. 9.49
  36. 4.56
  37. 11.44
  38. 0.046
  39. 40
  40. 0.007

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