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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 879 · 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. 1.2.29 + 3.7 = ? (a) 6.09 (b) 5.89 (c) 5.99 (d) 2.66
  2. 2.9.33 + 7.1 = ? (a) 16.33 (b) 16.53 (c) 16.43 (d) 10.04
  3. 3.What is the value of the digit 1 in 16.487? (a) 1 (b) 0.01 (c) 10 (d) 0.1
  4. 4.9.01 + 8.1 = ? (a) 17.11 (b) 17.21 (c) 17.01 (d) 9.82
  5. 5.What is the value of the digit 5 in 52.197? (a) 0.05 (b) 50 (c) 5 (d) 0.5
  6. 6.What is the value of the digit 5 in 15.682? (a) 0.05 (b) 50 (c) 5 (d) 0.5
  7. 7.Which is the greatest: 0.47, 0.4, 0.074, 0.338? (a) 0.47 (b) 0.4 (c) 0.074 (d) 0.338
  8. 8.What is the value of the digit 2 in 28.936? (a) 2 (b) 0.2 (c) 20 (d) 0.02
  9. 9.What is the value of the digit 7 in 17.629? (a) 0.07 (b) 7 (c) 0.7 (d) 70
  10. 10.What is the value of the digit 1 in 19.437? (a) 1 (b) 0.1 (c) 10 (d) 0.01
  11. 11.What is the value of the digit 5 in 25.713? (a) 0.5 (b) 50 (c) 5 (d) 0.05
  12. 12.What is the value of the digit 3 in 19.356? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03
  13. 13.What is the value of the digit 4 in 35.462? (a) 0.004 (b) 0.04 (c) 4 (d) 0.4
  14. 14.What is the value of the digit 4 in 14.793? (a) 4 (b) 40 (c) 0.04 (d) 0.4
  15. 15.4.39 + 9.7 = ? (a) 5.36 (b) 14.09 (c) 14.19 (d) 13.99
  16. 16.6.17 + 7.7 = ? (a) 13.87 (b) 13.97 (c) 13.77 (d) 6.94
  17. 17.Which is the greatest: 0.8, 0.744, 0.83, 0.023? (a) 0.8 (b) 0.744 (c) 0.83 (d) 0.023
  18. 18.Which is the greatest: 0.2, 0.26, 0.154, 0.063? (a) 0.2 (b) 0.26 (c) 0.154 (d) 0.063
  19. 19.Which is the greatest: 0.64, 0.6, 0.057, 0.525? (a) 0.64 (b) 0.6 (c) 0.057 (d) 0.525
  20. 20.3.51 + 7.2 = ? (a) 10.81 (b) 4.23 (c) 10.61 (d) 10.71
  21. 21.5.97 + 9.8 = ? (a) 15.77 (b) 15.67 (c) 6.95 (d) 15.87
  22. 22.What is the value of the digit 7 in 36.714? (a) 7 (b) 0.007 (c) 0.07 (d) 0.7
  23. 23.Which is the smallest: 0.6, 0.69, 0.565, 0.091? (a) 0.6 (b) 0.69 (c) 0.565 (d) 0.091
  24. 24.7.92 + 6.3 = ? (a) 8.55 (b) 14.32 (c) 14.12 (d) 14.22
  25. 25.8.55 + 8.4 = ? (a) 17.05 (b) 16.95 (c) 16.85 (d) 9.39
  26. 26.Which is the greatest: 0.47, 0.086, 0.353, 0.4? (a) 0.47 (b) 0.086 (c) 0.353 (d) 0.4
  27. 27.Which is the smallest: 0.056, 0.4, 0.47, 0.376? (a) 0.056 (b) 0.4 (c) 0.47 (d) 0.376
  28. 28.What is the value of the digit 9 in 95.186? (a) 90 (b) 9 (c) 0.9 (d) 0.09
  29. 29.What is the value of the digit 4 in 15.642? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004
  30. 30.5.41 + 8.4 = ? (a) 6.25 (b) 13.71 (c) 13.81 (d) 13.91
  31. 31.8.16 + 1.7 = ? (a) 8.33 (b) 9.96 (c) 9.86 (d) 9.76
  32. 32.7.81 + 4.7 = ? (a) 8.28 (b) 12.51 (c) 12.61 (d) 12.41
  33. 33.What is the value of the digit 7 in 84.765? (a) 0.07 (b) 7 (c) 0.007 (d) 0.7
  34. 34.8.97 + 9.9 = ? (a) 18.97 (b) 9.96 (c) 18.87 (d) 18.77
  35. 35.What is the value of the digit 4 in 24.983? (a) 0.4 (b) 40 (c) 4 (d) 0.04
  36. 36.3.64 + 4.4 = ? (a) 7.94 (b) 4.08 (c) 8.14 (d) 8.04
  37. 37.Which is the smallest: 0.2, 0.21, 0.138, 0.095? (a) 0.2 (b) 0.21 (c) 0.138 (d) 0.095
  38. 38.2.61 + 9.4 = ? (a) 12.11 (b) 12.01 (c) 3.55 (d) 11.91
  39. 39.What is the value of the digit 3 in 95.143? (a) 3 (b) 0.003 (c) 0.03 (d) 0.3
  40. 40.Which is the greatest: 0.621, 0.77, 0.062, 0.7? (a) 0.621 (b) 0.77 (c) 0.062 (d) 0.7

Answer key

  1. 5.99
  2. 16.43
  3. 10
  4. 17.11
  5. 50
  6. 5
  7. 0.47
  8. 20
  9. 7
  10. 10
  11. 5
  12. 0.3
  13. 0.4
  14. 4
  15. 14.09
  16. 13.87
  17. 0.83
  18. 0.26
  19. 0.64
  20. 10.71
  21. 15.77
  22. 0.7
  23. 0.091
  24. 14.22
  25. 16.95
  26. 0.47
  27. 0.056
  28. 90
  29. 0.04
  30. 13.81
  31. 9.86
  32. 12.51
  33. 0.7
  34. 18.87
  35. 4
  36. 8.04
  37. 0.095
  38. 12.01
  39. 0.003
  40. 0.77

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