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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 126 · 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: 0.51, 0.413, 0.052, 0.5? (a) 0.51 (b) 0.413 (c) 0.052 (d) 0.5
  2. 2.7.23 + 4.2 = ? (a) 11.33 (b) 7.65 (c) 11.53 (d) 11.43
  3. 3.Which is the greatest: 0.8, 0.82, 0.733, 0.031? (a) 0.8 (b) 0.82 (c) 0.733 (d) 0.031
  4. 4.What is the value of the digit 6 in 85.267? (a) 6 (b) 0.06 (c) 0.6 (d) 0.006
  5. 5.6.36 + 5.7 = ? (a) 6.93 (b) 12.06 (c) 11.96 (d) 12.16
  6. 6.5.38 + 7.9 = ? (a) 13.28 (b) 13.18 (c) 6.17 (d) 13.38
  7. 7.Which is the smallest: 0.33, 0.051, 0.218, 0.3? (a) 0.33 (b) 0.051 (c) 0.218 (d) 0.3
  8. 8.What is the value of the digit 9 in 92.136? (a) 0.9 (b) 9 (c) 90 (d) 0.09
  9. 9.What is the value of the digit 5 in 72.543? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  10. 10.8.21 + 9.3 = ? (a) 17.41 (b) 17.61 (c) 17.51 (d) 9.14
  11. 11.1.98 + 1.9 = ? (a) 3.88 (b) 3.78 (c) 3.98 (d) 2.17
  12. 12.4.32 + 5.3 = ? (a) 4.85 (b) 9.52 (c) 9.62 (d) 9.72
  13. 13.What is the value of the digit 3 in 67.183? (a) 0.03 (b) 3 (c) 0.003 (d) 0.3
  14. 14.What is the value of the digit 7 in 12.837? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7
  15. 15.Which is the greatest: 0.178, 0.2, 0.065, 0.29? (a) 0.178 (b) 0.2 (c) 0.065 (d) 0.29
  16. 16.6.91 + 6.3 = ? (a) 13.31 (b) 13.11 (c) 7.54 (d) 13.21
  17. 17.What is the value of the digit 5 in 26.549? (a) 0.005 (b) 0.05 (c) 5 (d) 0.5
  18. 18.7.04 + 4.7 = ? (a) 11.84 (b) 11.64 (c) 7.51 (d) 11.74
  19. 19.Which is the smallest: 0.88, 0.8, 0.034, 0.731? (a) 0.88 (b) 0.8 (c) 0.034 (d) 0.731
  20. 20.What is the value of the digit 4 in 32.584? (a) 0.04 (b) 0.4 (c) 4 (d) 0.004
  21. 21.Which is the greatest: 0.51, 0.467, 0.086, 0.5? (a) 0.51 (b) 0.467 (c) 0.086 (d) 0.5
  22. 22.What is the value of the digit 5 in 49.578? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  23. 23.What is the value of the digit 5 in 57.819? (a) 0.5 (b) 0.05 (c) 5 (d) 50
  24. 24.Which is the greatest: 0.082, 0.41, 0.4, 0.391? (a) 0.082 (b) 0.41 (c) 0.4 (d) 0.391
  25. 25.Which is the smallest: 0.345, 0.42, 0.4, 0.011? (a) 0.345 (b) 0.42 (c) 0.4 (d) 0.011
  26. 26.Which is the smallest: 0.63, 0.6, 0.078, 0.591? (a) 0.63 (b) 0.6 (c) 0.078 (d) 0.591
  27. 27.Which is the smallest: 0.534, 0.6, 0.074, 0.64? (a) 0.534 (b) 0.6 (c) 0.074 (d) 0.64
  28. 28.Which is the greatest: 0.096, 0.141, 0.29, 0.2? (a) 0.096 (b) 0.141 (c) 0.29 (d) 0.2
  29. 29.7.57 + 4.5 = ? (a) 11.97 (b) 12.17 (c) 8.02 (d) 12.07
  30. 30.9.59 + 3.8 = ? (a) 9.97 (b) 13.29 (c) 13.39 (d) 13.49
  31. 31.Which is the greatest: 0.32, 0.086, 0.3, 0.269? (a) 0.32 (b) 0.086 (c) 0.3 (d) 0.269
  32. 32.1.55 + 3.4 = ? (a) 4.95 (b) 1.89 (c) 5.05 (d) 4.85
  33. 33.2.71 + 3.6 = ? (a) 6.41 (b) 3.07 (c) 6.21 (d) 6.31
  34. 34.What is the value of the digit 9 in 86.519? (a) 9 (b) 0.009 (c) 0.09 (d) 0.9
  35. 35.8.38 + 5.4 = ? (a) 13.88 (b) 13.68 (c) 13.78 (d) 8.92
  36. 36.1.79 + 1.2 = ? (a) 3.09 (b) 1.91 (c) 2.89 (d) 2.99
  37. 37.2.56 + 4.7 = ? (a) 3.03 (b) 7.36 (c) 7.26 (d) 7.16
  38. 38.9.02 + 2.7 = ? (a) 11.82 (b) 9.29 (c) 11.72 (d) 11.62
  39. 39.Which is the greatest: 0.038, 0.689, 0.7, 0.75? (a) 0.038 (b) 0.689 (c) 0.7 (d) 0.75
  40. 40.What is the value of the digit 1 in 64.315? (a) 0.01 (b) 0.1 (c) 1 (d) 0.001

Answer key

  1. 0.51
  2. 11.43
  3. 0.82
  4. 0.06
  5. 12.06
  6. 13.28
  7. 0.051
  8. 90
  9. 0.5
  10. 17.51
  11. 3.88
  12. 9.62
  13. 0.003
  14. 0.007
  15. 0.29
  16. 13.21
  17. 0.5
  18. 11.74
  19. 0.034
  20. 0.004
  21. 0.51
  22. 0.5
  23. 50
  24. 0.41
  25. 0.011
  26. 0.078
  27. 0.074
  28. 0.29
  29. 12.07
  30. 13.39
  31. 0.32
  32. 4.95
  33. 6.31
  34. 0.009
  35. 13.78
  36. 2.99
  37. 7.26
  38. 11.72
  39. 0.75
  40. 0.01

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