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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 363 · 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 8 in 18.239? (a) 0.08 (b) 0.8 (c) 80 (d) 8
  2. 2.3.15 + 6.5 = ? (a) 3.8 (b) 9.55 (c) 9.65 (d) 9.75
  3. 3.Which is the smallest: 0.599, 0.69, 0.076, 0.6? (a) 0.599 (b) 0.69 (c) 0.076 (d) 0.6
  4. 4.5.08 + 7.8 = ? (a) 12.78 (b) 5.86 (c) 12.98 (d) 12.88
  5. 5.6.38 + 5.7 = ? (a) 12.18 (b) 12.08 (c) 6.95 (d) 11.98
  6. 6.What is the value of the digit 2 in 14.792? (a) 0.002 (b) 0.2 (c) 2 (d) 0.02
  7. 7.What is the value of the digit 5 in 62.375? (a) 0.05 (b) 5 (c) 0.5 (d) 0.005
  8. 8.Which is the smallest: 0.71, 0.624, 0.7, 0.049? (a) 0.71 (b) 0.624 (c) 0.7 (d) 0.049
  9. 9.Which is the greatest: 0.48, 0.064, 0.388, 0.4? (a) 0.48 (b) 0.064 (c) 0.388 (d) 0.4
  10. 10.5.56 + 5.7 = ? (a) 6.13 (b) 11.36 (c) 11.26 (d) 11.16
  11. 11.What is the value of the digit 3 in 16.358? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  12. 12.What is the value of the digit 9 in 84.591? (a) 0.09 (b) 0.009 (c) 9 (d) 0.9
  13. 13.4.05 + 6.1 = ? (a) 4.66 (b) 10.25 (c) 10.15 (d) 10.05
  14. 14.9.95 + 3.1 = ? (a) 10.26 (b) 13.05 (c) 12.95 (d) 13.15
  15. 15.What is the value of the digit 3 in 94.563? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  16. 16.4.21 + 1.2 = ? (a) 5.41 (b) 4.33 (c) 5.51 (d) 5.31
  17. 17.9.11 + 3.2 = ? (a) 12.41 (b) 12.21 (c) 12.31 (d) 9.43
  18. 18.8.75 + 7.2 = ? (a) 15.85 (b) 9.47 (c) 15.95 (d) 16.05
  19. 19.Which is the greatest: 0.36, 0.214, 0.092, 0.3? (a) 0.36 (b) 0.214 (c) 0.092 (d) 0.3
  20. 20.What is the value of the digit 3 in 82.391? (a) 0.03 (b) 0.003 (c) 0.3 (d) 3
  21. 21.Which is the greatest: 0.6, 0.65, 0.069, 0.555? (a) 0.6 (b) 0.65 (c) 0.069 (d) 0.555
  22. 22.What is the value of the digit 7 in 17.365? (a) 70 (b) 0.07 (c) 7 (d) 0.7
  23. 23.Which is the smallest: 0.3, 0.026, 0.299, 0.39? (a) 0.3 (b) 0.026 (c) 0.299 (d) 0.39
  24. 24.9.76 + 6.4 = ? (a) 16.06 (b) 10.4 (c) 16.16 (d) 16.26
  25. 25.6.53 + 2.1 = ? (a) 8.53 (b) 6.74 (c) 8.63 (d) 8.73
  26. 26.Which is the smallest: 0.69, 0.597, 0.6, 0.094? (a) 0.69 (b) 0.597 (c) 0.6 (d) 0.094
  27. 27.2.87 + 2.9 = ? (a) 3.16 (b) 5.67 (c) 5.87 (d) 5.77
  28. 28.9.91 + 1.8 = ? (a) 10.09 (b) 11.61 (c) 11.81 (d) 11.71
  29. 29.What is the value of the digit 4 in 29.648? (a) 0.004 (b) 0.04 (c) 0.4 (d) 4
  30. 30.7.27 + 8.1 = ? (a) 15.37 (b) 8.08 (c) 15.27 (d) 15.47
  31. 31.Which is the smallest: 0.38, 0.293, 0.067, 0.3? (a) 0.38 (b) 0.293 (c) 0.067 (d) 0.3
  32. 32.5.72 + 7.1 = ? (a) 12.92 (b) 12.72 (c) 6.43 (d) 12.82
  33. 33.What is the value of the digit 1 in 15.637? (a) 0.01 (b) 1 (c) 0.1 (d) 10
  34. 34.Which is the smallest: 0.46, 0.013, 0.311, 0.4? (a) 0.46 (b) 0.013 (c) 0.311 (d) 0.4
  35. 35.7.17 + 6.3 = ? (a) 13.57 (b) 13.47 (c) 13.37 (d) 7.8
  36. 36.What is the value of the digit 8 in 18.657? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  37. 37.1.84 + 1.2 = ? (a) 2.94 (b) 3.04 (c) 1.96 (d) 3.14
  38. 38.What is the value of the digit 3 in 61.348? (a) 0.003 (b) 0.03 (c) 3 (d) 0.3
  39. 39.What is the value of the digit 1 in 51.749? (a) 0.1 (b) 0.01 (c) 10 (d) 1
  40. 40.3.54 + 6.1 = ? (a) 9.74 (b) 9.64 (c) 4.15 (d) 9.54

Answer key

  1. 8
  2. 9.65
  3. 0.076
  4. 12.88
  5. 12.08
  6. 0.002
  7. 0.005
  8. 0.049
  9. 0.48
  10. 11.26
  11. 0.3
  12. 0.09
  13. 10.15
  14. 13.05
  15. 0.003
  16. 5.41
  17. 12.31
  18. 15.95
  19. 0.36
  20. 0.3
  21. 0.65
  22. 7
  23. 0.026
  24. 16.16
  25. 8.63
  26. 0.094
  27. 5.77
  28. 11.71
  29. 0.04
  30. 15.37
  31. 0.067
  32. 12.82
  33. 10
  34. 0.013
  35. 13.47
  36. 8
  37. 3.04
  38. 0.3
  39. 1
  40. 9.64

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