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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 557 · 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. 1.6.53 + 3.4 = ? (a) 9.93 (b) 10.03 (c) 6.87 (d) 9.83
  2. 2.What is the value of the digit 6 in 46.372? (a) 0.6 (b) 6 (c) 0.06 (d) 60
  3. 3.5.92 + 5.4 = ? (a) 6.46 (b) 11.32 (c) 11.22 (d) 11.42
  4. 4.Which is the smallest: 0.4, 0.41, 0.385, 0.051? (a) 0.4 (b) 0.41 (c) 0.385 (d) 0.051
  5. 5.8.57 + 4.1 = ? (a) 8.98 (b) 12.77 (c) 12.67 (d) 12.57
  6. 6.1.16 + 5.8 = ? (a) 6.96 (b) 1.74 (c) 6.86 (d) 7.06
  7. 7.5.31 + 8.1 = ? (a) 13.31 (b) 6.12 (c) 13.41 (d) 13.51
  8. 8.Which is the smallest: 0.2, 0.045, 0.29, 0.135? (a) 0.2 (b) 0.045 (c) 0.29 (d) 0.135
  9. 9.9.72 + 4.6 = ? (a) 14.42 (b) 10.18 (c) 14.22 (d) 14.32
  10. 10.Which is the greatest: 0.243, 0.35, 0.3, 0.094? (a) 0.243 (b) 0.35 (c) 0.3 (d) 0.094
  11. 11.Which is the greatest: 0.721, 0.043, 0.8, 0.89? (a) 0.721 (b) 0.043 (c) 0.8 (d) 0.89
  12. 12.Which is the greatest: 0.3, 0.39, 0.253, 0.011? (a) 0.3 (b) 0.39 (c) 0.253 (d) 0.011
  13. 13.What is the value of the digit 9 in 74.921? (a) 0.009 (b) 9 (c) 0.09 (d) 0.9
  14. 14.What is the value of the digit 1 in 91.825? (a) 10 (b) 0.01 (c) 1 (d) 0.1
  15. 15.Which is the greatest: 0.222, 0.38, 0.073, 0.3? (a) 0.222 (b) 0.38 (c) 0.073 (d) 0.3
  16. 16.What is the value of the digit 2 in 69.241? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02
  17. 17.What is the value of the digit 3 in 32.194? (a) 0.3 (b) 3 (c) 0.03 (d) 30
  18. 18.What is the value of the digit 5 in 45.281? (a) 0.05 (b) 50 (c) 5 (d) 0.5
  19. 19.9.71 + 4.2 = ? (a) 13.81 (b) 10.13 (c) 14.01 (d) 13.91
  20. 20.9.12 + 7.5 = ? (a) 16.52 (b) 16.62 (c) 16.72 (d) 9.87
  21. 21.What is the value of the digit 4 in 52.734? (a) 0.04 (b) 4 (c) 0.4 (d) 0.004
  22. 22.What is the value of the digit 2 in 42.968? (a) 0.2 (b) 0.02 (c) 20 (d) 2
  23. 23.Which is the greatest: 0.6, 0.083, 0.62, 0.514? (a) 0.6 (b) 0.083 (c) 0.62 (d) 0.514
  24. 24.Which is the smallest: 0.79, 0.651, 0.016, 0.7? (a) 0.79 (b) 0.651 (c) 0.016 (d) 0.7
  25. 25.Which is the smallest: 0.456, 0.082, 0.55, 0.5? (a) 0.456 (b) 0.082 (c) 0.55 (d) 0.5
  26. 26.6.38 + 9.8 = ? (a) 16.08 (b) 16.28 (c) 7.36 (d) 16.18
  27. 27.Which is the greatest: 0.5, 0.55, 0.495, 0.089? (a) 0.5 (b) 0.55 (c) 0.495 (d) 0.089
  28. 28.Which is the smallest: 0.7, 0.038, 0.681, 0.75? (a) 0.7 (b) 0.038 (c) 0.681 (d) 0.75
  29. 29.9.12 + 1.5 = ? (a) 10.52 (b) 10.62 (c) 9.27 (d) 10.72
  30. 30.Which is the greatest: 0.297, 0.3, 0.34, 0.074? (a) 0.297 (b) 0.3 (c) 0.34 (d) 0.074
  31. 31.What is the value of the digit 1 in 12.943? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  32. 32.What is the value of the digit 3 in 71.358? (a) 3 (b) 0.03 (c) 0.3 (d) 0.003
  33. 33.What is the value of the digit 5 in 26.315? (a) 0.005 (b) 5 (c) 0.05 (d) 0.5
  34. 34.1.61 + 3.6 = ? (a) 5.11 (b) 5.21 (c) 5.31 (d) 1.97
  35. 35.What is the value of the digit 1 in 25.317? (a) 0.01 (b) 0.1 (c) 0.001 (d) 1
  36. 36.9.73 + 6.8 = ? (a) 16.43 (b) 10.41 (c) 16.53 (d) 16.63
  37. 37.Which is the greatest: 0.322, 0.015, 0.4, 0.43? (a) 0.322 (b) 0.015 (c) 0.4 (d) 0.43
  38. 38.5.61 + 9.1 = ? (a) 14.71 (b) 14.61 (c) 14.81 (d) 6.52
  39. 39.Which is the greatest: 0.765, 0.082, 0.8, 0.84? (a) 0.765 (b) 0.082 (c) 0.8 (d) 0.84
  40. 40.2.81 + 7.2 = ? (a) 10.11 (b) 9.91 (c) 3.53 (d) 10.01

Answer key

  1. 9.93
  2. 6
  3. 11.32
  4. 0.051
  5. 12.67
  6. 6.96
  7. 13.41
  8. 0.045
  9. 14.32
  10. 0.35
  11. 0.89
  12. 0.39
  13. 0.9
  14. 1
  15. 0.38
  16. 0.2
  17. 30
  18. 5
  19. 13.91
  20. 16.62
  21. 0.004
  22. 2
  23. 0.62
  24. 0.016
  25. 0.082
  26. 16.18
  27. 0.55
  28. 0.038
  29. 10.62
  30. 0.34
  31. 10
  32. 0.3
  33. 0.005
  34. 5.21
  35. 0.01
  36. 16.53
  37. 0.43
  38. 14.71
  39. 0.84
  40. 10.01

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