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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 242 · 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: 0.36, 0.063, 0.3, 0.245? (a) 0.36 (b) 0.063 (c) 0.3 (d) 0.245
  2. 2.9.32 + 2.9 = ? (a) 12.22 (b) 9.61 (c) 12.12 (d) 12.32
  3. 3.What is the value of the digit 7 in 74.653? (a) 7 (b) 0.07 (c) 70 (d) 0.7
  4. 4.4.32 + 4.4 = ? (a) 8.62 (b) 8.82 (c) 8.72 (d) 4.76
  5. 5.What is the value of the digit 7 in 37.456? (a) 0.07 (b) 7 (c) 70 (d) 0.7
  6. 6.6.07 + 1.1 = ? (a) 6.18 (b) 7.07 (c) 7.17 (d) 7.27
  7. 7.3.39 + 3.8 = ? (a) 7.09 (b) 3.77 (c) 7.19 (d) 7.29
  8. 8.8.83 + 7.5 = ? (a) 16.33 (b) 16.23 (c) 16.43 (d) 9.58
  9. 9.Which is the greatest: 0.4, 0.327, 0.42, 0.038? (a) 0.4 (b) 0.327 (c) 0.42 (d) 0.038
  10. 10.6.05 + 6.4 = ? (a) 12.45 (b) 12.35 (c) 6.69 (d) 12.55
  11. 11.9.07 + 3.7 = ? (a) 12.77 (b) 9.44 (c) 12.67 (d) 12.87
  12. 12.2.38 + 8.1 = ? (a) 10.38 (b) 10.58 (c) 10.48 (d) 3.19
  13. 13.What is the value of the digit 9 in 79.386? (a) 0.9 (b) 90 (c) 9 (d) 0.09
  14. 14.Which is the greatest: 0.083, 0.315, 0.4, 0.43? (a) 0.083 (b) 0.315 (c) 0.4 (d) 0.43
  15. 15.What is the value of the digit 7 in 79.124? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  16. 16.Which is the greatest: 0.786, 0.85, 0.033, 0.8? (a) 0.786 (b) 0.85 (c) 0.033 (d) 0.8
  17. 17.Which is the greatest: 0.52, 0.072, 0.416, 0.5? (a) 0.52 (b) 0.072 (c) 0.416 (d) 0.5
  18. 18.Which is the greatest: 0.45, 0.035, 0.328, 0.4? (a) 0.45 (b) 0.035 (c) 0.328 (d) 0.4
  19. 19.What is the value of the digit 3 in 63.154? (a) 3 (b) 0.3 (c) 30 (d) 0.03
  20. 20.6.72 + 9.7 = ? (a) 16.52 (b) 16.32 (c) 7.69 (d) 16.42
  21. 21.Which is the smallest: 0.082, 0.3, 0.31, 0.253? (a) 0.082 (b) 0.3 (c) 0.31 (d) 0.253
  22. 22.4.43 + 3.5 = ? (a) 4.78 (b) 8.03 (c) 7.83 (d) 7.93
  23. 23.9.72 + 1.1 = ? (a) 9.83 (b) 10.82 (c) 10.72 (d) 10.92
  24. 24.Which is the smallest: 0.76, 0.034, 0.7, 0.634? (a) 0.76 (b) 0.034 (c) 0.7 (d) 0.634
  25. 25.Which is the greatest: 0.022, 0.38, 0.271, 0.3? (a) 0.022 (b) 0.38 (c) 0.271 (d) 0.3
  26. 26.5.51 + 4.3 = ? (a) 9.91 (b) 9.71 (c) 5.94 (d) 9.81
  27. 27.4.63 + 7.8 = ? (a) 12.33 (b) 5.41 (c) 12.53 (d) 12.43
  28. 28.What is the value of the digit 6 in 63.984? (a) 60 (b) 0.06 (c) 6 (d) 0.6
  29. 29.9.95 + 5.1 = ? (a) 14.95 (b) 10.46 (c) 15.15 (d) 15.05
  30. 30.What is the value of the digit 1 in 26.491? (a) 1 (b) 0.1 (c) 0.01 (d) 0.001
  31. 31.Which is the greatest: 0.8, 0.771, 0.89, 0.094? (a) 0.8 (b) 0.771 (c) 0.89 (d) 0.094
  32. 32.What is the value of the digit 3 in 58.234? (a) 0.3 (b) 3 (c) 0.03 (d) 0.003
  33. 33.1.78 + 7.2 = ? (a) 8.88 (b) 9.08 (c) 2.5 (d) 8.98
  34. 34.Which is the smallest: 0.086, 0.721, 0.83, 0.8? (a) 0.086 (b) 0.721 (c) 0.83 (d) 0.8
  35. 35.What is the value of the digit 1 in 73.491? (a) 1 (b) 0.1 (c) 0.001 (d) 0.01
  36. 36.What is the value of the digit 2 in 29.635? (a) 20 (b) 2 (c) 0.2 (d) 0.02
  37. 37.What is the value of the digit 9 in 91.546? (a) 0.9 (b) 90 (c) 0.09 (d) 9
  38. 38.What is the value of the digit 7 in 92.371? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  39. 39.Which is the greatest: 0.73, 0.7, 0.621, 0.022? (a) 0.73 (b) 0.7 (c) 0.621 (d) 0.022
  40. 40.2.06 + 9.9 = ? (a) 12.06 (b) 11.96 (c) 11.86 (d) 3.05

Answer key

  1. 0.36
  2. 12.22
  3. 70
  4. 8.72
  5. 7
  6. 7.17
  7. 7.19
  8. 16.33
  9. 0.42
  10. 12.45
  11. 12.77
  12. 10.48
  13. 9
  14. 0.43
  15. 70
  16. 0.85
  17. 0.52
  18. 0.45
  19. 3
  20. 16.42
  21. 0.082
  22. 7.93
  23. 10.82
  24. 0.034
  25. 0.38
  26. 9.81
  27. 12.43
  28. 60
  29. 15.05
  30. 0.001
  31. 0.89
  32. 0.03
  33. 8.98
  34. 0.086
  35. 0.001
  36. 20
  37. 90
  38. 0.07
  39. 0.73
  40. 11.96

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