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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 197 · 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. 1.3.01 + 1.5 = ? (a) 4.61 (b) 4.41 (c) 4.51 (d) 3.16
  2. 2.Which is the greatest: 0.043, 0.4, 0.41, 0.351? (a) 0.043 (b) 0.4 (c) 0.41 (d) 0.351
  3. 3.What is the value of the digit 2 in 91.652? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  4. 4.9.74 + 3.2 = ? (a) 12.84 (b) 10.06 (c) 12.94 (d) 13.04
  5. 5.3.06 + 7.6 = ? (a) 3.82 (b) 10.56 (c) 10.76 (d) 10.66
  6. 6.What is the value of the digit 7 in 14.739? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007
  7. 7.Which is the greatest: 0.5, 0.56, 0.034, 0.423? (a) 0.5 (b) 0.56 (c) 0.034 (d) 0.423
  8. 8.What is the value of the digit 6 in 41.692? (a) 0.006 (b) 0.06 (c) 0.6 (d) 6
  9. 9.What is the value of the digit 7 in 39.578? (a) 0.7 (b) 0.07 (c) 7 (d) 0.007
  10. 10.4.55 + 5.9 = ? (a) 5.14 (b) 10.55 (c) 10.35 (d) 10.45
  11. 11.1.77 + 2.7 = ? (a) 4.37 (b) 4.47 (c) 4.57 (d) 2.04
  12. 12.Which is the greatest: 0.041, 0.81, 0.751, 0.8? (a) 0.041 (b) 0.81 (c) 0.751 (d) 0.8
  13. 13.6.75 + 9.5 = ? (a) 16.15 (b) 16.25 (c) 7.7 (d) 16.35
  14. 14.1.16 + 1.7 = ? (a) 2.86 (b) 2.96 (c) 1.33 (d) 2.76
  15. 15.What is the value of the digit 4 in 43.561? (a) 4 (b) 40 (c) 0.4 (d) 0.04
  16. 16.Which is the smallest: 0.8, 0.761, 0.81, 0.055? (a) 0.8 (b) 0.761 (c) 0.81 (d) 0.055
  17. 17.4.71 + 8.9 = ? (a) 13.71 (b) 13.51 (c) 5.6 (d) 13.61
  18. 18.What is the value of the digit 2 in 83.412? (a) 0.2 (b) 2 (c) 0.02 (d) 0.002
  19. 19.7.97 + 2.5 = ? (a) 10.37 (b) 10.57 (c) 8.22 (d) 10.47
  20. 20.Which is the greatest: 0.077, 0.47, 0.4, 0.383? (a) 0.077 (b) 0.47 (c) 0.4 (d) 0.383
  21. 21.3.95 + 3.6 = ? (a) 7.65 (b) 7.45 (c) 4.31 (d) 7.55
  22. 22.Which is the greatest: 0.79, 0.092, 0.621, 0.7? (a) 0.79 (b) 0.092 (c) 0.621 (d) 0.7
  23. 23.What is the value of the digit 3 in 37.924? (a) 0.03 (b) 0.3 (c) 30 (d) 3
  24. 24.What is the value of the digit 7 in 65.714? (a) 0.007 (b) 7 (c) 0.7 (d) 0.07
  25. 25.1.53 + 6.4 = ? (a) 2.17 (b) 8.03 (c) 7.83 (d) 7.93
  26. 26.Which is the smallest: 0.47, 0.364, 0.4, 0.025? (a) 0.47 (b) 0.364 (c) 0.4 (d) 0.025
  27. 27.What is the value of the digit 8 in 38.917? (a) 80 (b) 8 (c) 0.8 (d) 0.08
  28. 28.What is the value of the digit 3 in 75.134? (a) 0.03 (b) 0.003 (c) 0.3 (d) 3
  29. 29.1.12 + 6.8 = ? (a) 7.82 (b) 1.8 (c) 7.92 (d) 8.02
  30. 30.7.71 + 8.1 = ? (a) 8.52 (b) 15.81 (c) 15.71 (d) 15.91
  31. 31.What is the value of the digit 2 in 12.965? (a) 2 (b) 0.2 (c) 0.02 (d) 20
  32. 32.What is the value of the digit 6 in 92.631? (a) 0.006 (b) 0.6 (c) 0.06 (d) 6
  33. 33.9.72 + 6.4 = ? (a) 16.02 (b) 10.36 (c) 16.22 (d) 16.12
  34. 34.What is the value of the digit 1 in 17.234? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  35. 35.Which is the smallest: 0.271, 0.3, 0.37, 0.039? (a) 0.271 (b) 0.3 (c) 0.37 (d) 0.039
  36. 36.What is the value of the digit 8 in 85.742? (a) 8 (b) 0.08 (c) 80 (d) 0.8
  37. 37.What is the value of the digit 2 in 27.814? (a) 0.2 (b) 0.02 (c) 2 (d) 20
  38. 38.Which is the greatest: 0.3, 0.33, 0.039, 0.213? (a) 0.3 (b) 0.33 (c) 0.039 (d) 0.213
  39. 39.What is the value of the digit 7 in 37.541? (a) 0.7 (b) 0.07 (c) 70 (d) 7
  40. 40.What is the value of the digit 6 in 26.798? (a) 60 (b) 0.6 (c) 0.06 (d) 6

Answer key

  1. 4.51
  2. 0.41
  3. 0.002
  4. 12.94
  5. 10.66
  6. 0.7
  7. 0.56
  8. 0.6
  9. 0.07
  10. 10.45
  11. 4.47
  12. 0.81
  13. 16.25
  14. 2.86
  15. 40
  16. 0.055
  17. 13.61
  18. 0.002
  19. 10.47
  20. 0.47
  21. 7.55
  22. 0.79
  23. 30
  24. 0.7
  25. 7.93
  26. 0.025
  27. 8
  28. 0.03
  29. 7.92
  30. 15.81
  31. 2
  32. 0.6
  33. 16.12
  34. 10
  35. 0.039
  36. 80
  37. 20
  38. 0.33
  39. 7
  40. 6

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