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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 881 · 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: 0.47, 0.026, 0.4, 0.378? (a) 0.47 (b) 0.026 (c) 0.4 (d) 0.378
  2. 2.8.03 + 2.6 = ? (a) 10.73 (b) 8.29 (c) 10.63 (d) 10.53
  3. 3.Which is the greatest: 0.2, 0.051, 0.22, 0.183? (a) 0.2 (b) 0.051 (c) 0.22 (d) 0.183
  4. 4.What is the value of the digit 9 in 17.492? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  5. 5.7.15 + 9.7 = ? (a) 8.12 (b) 16.85 (c) 16.75 (d) 16.95
  6. 6.Which is the smallest: 0.5, 0.084, 0.437, 0.58? (a) 0.5 (b) 0.084 (c) 0.437 (d) 0.58
  7. 7.6.52 + 3.3 = ? (a) 9.92 (b) 6.85 (c) 9.82 (d) 9.72
  8. 8.What is the value of the digit 3 in 76.183? (a) 0.3 (b) 3 (c) 0.003 (d) 0.03
  9. 9.What is the value of the digit 3 in 73.812? (a) 0.3 (b) 0.03 (c) 3 (d) 30
  10. 10.9.11 + 6.6 = ? (a) 15.81 (b) 15.71 (c) 15.61 (d) 9.77
  11. 11.What is the value of the digit 8 in 19.873? (a) 0.008 (b) 0.08 (c) 8 (d) 0.8
  12. 12.2.76 + 9.9 = ? (a) 12.56 (b) 12.76 (c) 3.75 (d) 12.66
  13. 13.Which is the greatest: 0.35, 0.3, 0.018, 0.282? (a) 0.35 (b) 0.3 (c) 0.018 (d) 0.282
  14. 14.Which is the greatest: 0.53, 0.085, 0.5, 0.458? (a) 0.53 (b) 0.085 (c) 0.5 (d) 0.458
  15. 15.Which is the smallest: 0.51, 0.487, 0.091, 0.5? (a) 0.51 (b) 0.487 (c) 0.091 (d) 0.5
  16. 16.Which is the smallest: 0.512, 0.62, 0.6, 0.077? (a) 0.512 (b) 0.62 (c) 0.6 (d) 0.077
  17. 17.Which is the greatest: 0.54, 0.092, 0.5, 0.478? (a) 0.54 (b) 0.092 (c) 0.5 (d) 0.478
  18. 18.Which is the greatest: 0.078, 0.476, 0.53, 0.5? (a) 0.078 (b) 0.476 (c) 0.53 (d) 0.5
  19. 19.6.65 + 2.3 = ? (a) 8.85 (b) 9.05 (c) 6.88 (d) 8.95
  20. 20.9.87 + 8.8 = ? (a) 18.57 (b) 18.77 (c) 18.67 (d) 10.75
  21. 21.5.96 + 9.7 = ? (a) 15.76 (b) 6.93 (c) 15.66 (d) 15.56
  22. 22.What is the value of the digit 2 in 64.251? (a) 0.002 (b) 0.2 (c) 2 (d) 0.02
  23. 23.Which is the greatest: 0.055, 0.46, 0.4, 0.328? (a) 0.055 (b) 0.46 (c) 0.4 (d) 0.328
  24. 24.3.57 + 7.2 = ? (a) 10.77 (b) 10.87 (c) 4.29 (d) 10.67
  25. 25.What is the value of the digit 9 in 97.251? (a) 90 (b) 9 (c) 0.09 (d) 0.9
  26. 26.What is the value of the digit 3 in 67.493? (a) 0.03 (b) 0.003 (c) 3 (d) 0.3
  27. 27.Which is the greatest: 0.063, 0.31, 0.3, 0.238? (a) 0.063 (b) 0.31 (c) 0.3 (d) 0.238
  28. 28.Which is the greatest: 0.3, 0.269, 0.048, 0.35? (a) 0.3 (b) 0.269 (c) 0.048 (d) 0.35
  29. 29.9.82 + 3.6 = ? (a) 13.32 (b) 13.52 (c) 13.42 (d) 10.18
  30. 30.What is the value of the digit 3 in 24.386? (a) 3 (b) 0.003 (c) 0.3 (d) 0.03
  31. 31.Which is the smallest: 0.33, 0.3, 0.018, 0.278? (a) 0.33 (b) 0.3 (c) 0.018 (d) 0.278
  32. 32.Which is the smallest: 0.72, 0.649, 0.052, 0.7? (a) 0.72 (b) 0.649 (c) 0.052 (d) 0.7
  33. 33.3.66 + 8.7 = ? (a) 12.26 (b) 12.46 (c) 12.36 (d) 4.53
  34. 34.Which is the smallest: 0.083, 0.7, 0.79, 0.618? (a) 0.083 (b) 0.7 (c) 0.79 (d) 0.618
  35. 35.Which is the greatest: 0.56, 0.481, 0.046, 0.5? (a) 0.56 (b) 0.481 (c) 0.046 (d) 0.5
  36. 36.7.76 + 3.3 = ? (a) 11.16 (b) 8.09 (c) 10.96 (d) 11.06
  37. 37.Which is the greatest: 0.053, 0.42, 0.4, 0.331? (a) 0.053 (b) 0.42 (c) 0.4 (d) 0.331
  38. 38.Which is the greatest: 0.296, 0.34, 0.059, 0.3? (a) 0.296 (b) 0.34 (c) 0.059 (d) 0.3
  39. 39.What is the value of the digit 3 in 63.297? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  40. 40.Which is the greatest: 0.78, 0.7, 0.023, 0.626? (a) 0.78 (b) 0.7 (c) 0.023 (d) 0.626

Answer key

  1. 0.47
  2. 10.63
  3. 0.22
  4. 0.09
  5. 16.85
  6. 0.084
  7. 9.82
  8. 0.003
  9. 3
  10. 15.71
  11. 0.8
  12. 12.66
  13. 0.35
  14. 0.53
  15. 0.091
  16. 0.077
  17. 0.54
  18. 0.53
  19. 8.95
  20. 18.67
  21. 15.66
  22. 0.2
  23. 0.46
  24. 10.77
  25. 90
  26. 0.003
  27. 0.31
  28. 0.35
  29. 13.42
  30. 0.3
  31. 0.018
  32. 0.052
  33. 12.36
  34. 0.083
  35. 0.56
  36. 11.06
  37. 0.42
  38. 0.34
  39. 3
  40. 0.78

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