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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 863 · 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 smallest: 0.275, 0.35, 0.3, 0.052? (a) 0.275 (b) 0.35 (c) 0.3 (d) 0.052
  2. 2.What is the value of the digit 4 in 79.483? (a) 0.004 (b) 4 (c) 0.04 (d) 0.4
  3. 3.3.24 + 7.2 = ? (a) 10.34 (b) 10.54 (c) 10.44 (d) 3.96
  4. 4.What is the value of the digit 8 in 31.826? (a) 0.8 (b) 0.08 (c) 0.008 (d) 8
  5. 5.What is the value of the digit 8 in 84.129? (a) 0.8 (b) 8 (c) 80 (d) 0.08
  6. 6.Which is the smallest: 0.373, 0.49, 0.4, 0.052? (a) 0.373 (b) 0.49 (c) 0.4 (d) 0.052
  7. 7.What is the value of the digit 1 in 41.596? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  8. 8.What is the value of the digit 2 in 89.723? (a) 0.002 (b) 0.2 (c) 2 (d) 0.02
  9. 9.Which is the greatest: 0.661, 0.79, 0.065, 0.7? (a) 0.661 (b) 0.79 (c) 0.065 (d) 0.7
  10. 10.2.84 + 4.6 = ? (a) 7.54 (b) 3.3 (c) 7.44 (d) 7.34
  11. 11.What is the value of the digit 4 in 36.194? (a) 4 (b) 0.04 (c) 0.4 (d) 0.004
  12. 12.Which is the smallest: 0.049, 0.6, 0.61, 0.575? (a) 0.049 (b) 0.6 (c) 0.61 (d) 0.575
  13. 13.2.23 + 5.2 = ? (a) 7.33 (b) 2.75 (c) 7.53 (d) 7.43
  14. 14.Which is the greatest: 0.5, 0.51, 0.052, 0.436? (a) 0.5 (b) 0.51 (c) 0.052 (d) 0.436
  15. 15.7.12 + 1.5 = ? (a) 8.62 (b) 8.72 (c) 8.52 (d) 7.27
  16. 16.Which is the greatest: 0.35, 0.3, 0.221, 0.035? (a) 0.35 (b) 0.3 (c) 0.221 (d) 0.035
  17. 17.Which is the smallest: 0.81, 0.088, 0.8, 0.725? (a) 0.81 (b) 0.088 (c) 0.8 (d) 0.725
  18. 18.8.58 + 1.1 = ? (a) 9.78 (b) 8.69 (c) 9.58 (d) 9.68
  19. 19.Which is the greatest: 0.63, 0.525, 0.6, 0.061? (a) 0.63 (b) 0.525 (c) 0.6 (d) 0.061
  20. 20.5.36 + 2.4 = ? (a) 5.6 (b) 7.66 (c) 7.76 (d) 7.86
  21. 21.What is the value of the digit 6 in 69.213? (a) 60 (b) 0.06 (c) 0.6 (d) 6
  22. 22.6.58 + 8.1 = ? (a) 7.39 (b) 14.68 (c) 14.58 (d) 14.78
  23. 23.Which is the smallest: 0.083, 0.58, 0.5, 0.486? (a) 0.083 (b) 0.58 (c) 0.5 (d) 0.486
  24. 24.2.59 + 8.1 = ? (a) 10.59 (b) 10.79 (c) 10.69 (d) 3.4
  25. 25.What is the value of the digit 5 in 32.745? (a) 0.5 (b) 5 (c) 0.005 (d) 0.05
  26. 26.What is the value of the digit 3 in 43.621? (a) 30 (b) 0.03 (c) 3 (d) 0.3
  27. 27.3.11 + 8.5 = ? (a) 3.96 (b) 11.71 (c) 11.51 (d) 11.61
  28. 28.What is the value of the digit 3 in 58.134? (a) 3 (b) 0.003 (c) 0.03 (d) 0.3
  29. 29.Which is the greatest: 0.351, 0.46, 0.4, 0.055? (a) 0.351 (b) 0.46 (c) 0.4 (d) 0.055
  30. 30.Which is the smallest: 0.8, 0.731, 0.012, 0.87? (a) 0.8 (b) 0.731 (c) 0.012 (d) 0.87
  31. 31.Which is the smallest: 0.262, 0.35, 0.064, 0.3? (a) 0.262 (b) 0.35 (c) 0.064 (d) 0.3
  32. 32.What is the value of the digit 2 in 85.247? (a) 0.002 (b) 0.02 (c) 2 (d) 0.2
  33. 33.What is the value of the digit 4 in 12.467? (a) 0.04 (b) 0.004 (c) 0.4 (d) 4
  34. 34.What is the value of the digit 9 in 31.459? (a) 9 (b) 0.9 (c) 0.009 (d) 0.09
  35. 35.7.75 + 4.9 = ? (a) 12.75 (b) 12.55 (c) 12.65 (d) 8.24
  36. 36.4.22 + 5.2 = ? (a) 9.52 (b) 9.32 (c) 9.42 (d) 4.74
  37. 37.What is the value of the digit 9 in 92.145? (a) 9 (b) 90 (c) 0.9 (d) 0.09
  38. 38.7.33 + 2.4 = ? (a) 9.83 (b) 9.73 (c) 7.57 (d) 9.63
  39. 39.Which is the smallest: 0.41, 0.087, 0.4, 0.329? (a) 0.41 (b) 0.087 (c) 0.4 (d) 0.329
  40. 40.Which is the smallest: 0.058, 0.8, 0.83, 0.729? (a) 0.058 (b) 0.8 (c) 0.83 (d) 0.729

Answer key

  1. 0.052
  2. 0.4
  3. 10.44
  4. 0.8
  5. 80
  6. 0.052
  7. 1
  8. 0.02
  9. 0.79
  10. 7.44
  11. 0.004
  12. 0.049
  13. 7.43
  14. 0.51
  15. 8.62
  16. 0.35
  17. 0.088
  18. 9.68
  19. 0.63
  20. 7.76
  21. 60
  22. 14.68
  23. 0.083
  24. 10.69
  25. 0.005
  26. 3
  27. 11.61
  28. 0.03
  29. 0.46
  30. 0.012
  31. 0.064
  32. 0.2
  33. 0.4
  34. 0.009
  35. 12.65
  36. 9.42
  37. 90
  38. 9.73
  39. 0.087
  40. 0.058

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