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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 374 · 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. 1.1.74 + 7.1 = ? (a) 2.45 (b) 8.94 (c) 8.84 (d) 8.74
  2. 2.2.31 + 5.8 = ? (a) 8.21 (b) 8.01 (c) 2.89 (d) 8.11
  3. 3.2.61 + 8.1 = ? (a) 10.61 (b) 10.71 (c) 10.81 (d) 3.42
  4. 4.What is the value of the digit 1 in 97.261? (a) 0.01 (b) 0.1 (c) 0.001 (d) 1
  5. 5.8.56 + 4.1 = ? (a) 12.56 (b) 12.76 (c) 8.97 (d) 12.66
  6. 6.6.89 + 5.3 = ? (a) 12.29 (b) 12.19 (c) 12.09 (d) 7.42
  7. 7.Which is the greatest: 0.164, 0.056, 0.22, 0.2? (a) 0.164 (b) 0.056 (c) 0.22 (d) 0.2
  8. 8.3.06 + 3.8 = ? (a) 6.86 (b) 3.44 (c) 6.76 (d) 6.96
  9. 9.1.62 + 4.1 = ? (a) 5.62 (b) 5.72 (c) 5.82 (d) 2.03
  10. 10.Which is the smallest: 0.112, 0.066, 0.2, 0.21? (a) 0.112 (b) 0.066 (c) 0.2 (d) 0.21
  11. 11.Which is the smallest: 0.073, 0.261, 0.36, 0.3? (a) 0.073 (b) 0.261 (c) 0.36 (d) 0.3
  12. 12.Which is the greatest: 0.6, 0.028, 0.61, 0.521? (a) 0.6 (b) 0.028 (c) 0.61 (d) 0.521
  13. 13.What is the value of the digit 5 in 54.937? (a) 0.05 (b) 5 (c) 50 (d) 0.5
  14. 14.Which is the smallest: 0.156, 0.063, 0.2, 0.29? (a) 0.156 (b) 0.063 (c) 0.2 (d) 0.29
  15. 15.What is the value of the digit 7 in 26.374? (a) 0.07 (b) 0.7 (c) 0.007 (d) 7
  16. 16.1.71 + 7.1 = ? (a) 8.81 (b) 8.91 (c) 2.42 (d) 8.71
  17. 17.2.57 + 3.3 = ? (a) 2.9 (b) 5.77 (c) 5.97 (d) 5.87
  18. 18.1.62 + 6.3 = ? (a) 7.92 (b) 7.82 (c) 2.25 (d) 8.02
  19. 19.7.24 + 2.7 = ? (a) 10.04 (b) 7.51 (c) 9.84 (d) 9.94
  20. 20.1.84 + 4.7 = ? (a) 6.64 (b) 6.54 (c) 6.44 (d) 2.31
  21. 21.6.31 + 9.2 = ? (a) 15.61 (b) 15.41 (c) 15.51 (d) 7.23
  22. 22.What is the value of the digit 4 in 54.381? (a) 40 (b) 0.04 (c) 0.4 (d) 4
  23. 23.Which is the greatest: 0.261, 0.023, 0.35, 0.3? (a) 0.261 (b) 0.023 (c) 0.35 (d) 0.3
  24. 24.2.65 + 2.5 = ? (a) 5.15 (b) 2.9 (c) 5.25 (d) 5.05
  25. 25.Which is the greatest: 0.62, 0.598, 0.061, 0.6? (a) 0.62 (b) 0.598 (c) 0.061 (d) 0.6
  26. 26.3.68 + 9.5 = ? (a) 13.28 (b) 13.18 (c) 13.08 (d) 4.63
  27. 27.What is the value of the digit 5 in 96.547? (a) 0.005 (b) 0.5 (c) 0.05 (d) 5
  28. 28.5.61 + 1.4 = ? (a) 5.75 (b) 7.11 (c) 7.01 (d) 6.91
  29. 29.What is the value of the digit 3 in 14.783? (a) 0.003 (b) 0.3 (c) 0.03 (d) 3
  30. 30.Which is the greatest: 0.37, 0.3, 0.288, 0.084? (a) 0.37 (b) 0.3 (c) 0.288 (d) 0.084
  31. 31.Which is the smallest: 0.627, 0.019, 0.73, 0.7? (a) 0.627 (b) 0.019 (c) 0.73 (d) 0.7
  32. 32.What is the value of the digit 2 in 42.189? (a) 0.2 (b) 20 (c) 0.02 (d) 2
  33. 33.Which is the greatest: 0.198, 0.094, 0.2, 0.25? (a) 0.198 (b) 0.094 (c) 0.2 (d) 0.25
  34. 34.6.32 + 3.2 = ? (a) 9.62 (b) 9.42 (c) 9.52 (d) 6.64
  35. 35.Which is the greatest: 0.84, 0.755, 0.029, 0.8? (a) 0.84 (b) 0.755 (c) 0.029 (d) 0.8
  36. 36.6.58 + 9.1 = ? (a) 15.78 (b) 15.58 (c) 15.68 (d) 7.49
  37. 37.What is the value of the digit 5 in 27.354? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  38. 38.What is the value of the digit 9 in 96.542? (a) 0.9 (b) 9 (c) 0.09 (d) 90
  39. 39.Which is the smallest: 0.092, 0.2, 0.145, 0.28? (a) 0.092 (b) 0.2 (c) 0.145 (d) 0.28
  40. 40.1.56 + 4.7 = ? (a) 2.03 (b) 6.26 (c) 6.36 (d) 6.16

Answer key

  1. 8.84
  2. 8.11
  3. 10.71
  4. 0.001
  5. 12.66
  6. 12.19
  7. 0.22
  8. 6.86
  9. 5.72
  10. 0.066
  11. 0.073
  12. 0.61
  13. 50
  14. 0.063
  15. 0.07
  16. 8.81
  17. 5.87
  18. 7.92
  19. 9.94
  20. 6.54
  21. 15.51
  22. 4
  23. 0.35
  24. 5.15
  25. 0.62
  26. 13.18
  27. 0.5
  28. 7.01
  29. 0.003
  30. 0.37
  31. 0.019
  32. 2
  33. 0.25
  34. 9.52
  35. 0.84
  36. 15.68
  37. 0.05
  38. 90
  39. 0.092
  40. 6.26

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