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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 263 · 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: 0.015, 0.34, 0.3, 0.236? (a) 0.015 (b) 0.34 (c) 0.3 (d) 0.236
  2. 2.Which is the smallest: 0.31, 0.3, 0.221, 0.036? (a) 0.31 (b) 0.3 (c) 0.221 (d) 0.036
  3. 3.What is the value of the digit 7 in 54.762? (a) 7 (b) 0.007 (c) 0.07 (d) 0.7
  4. 4.Which is the greatest: 0.221, 0.031, 0.3, 0.34? (a) 0.221 (b) 0.031 (c) 0.3 (d) 0.34
  5. 5.1.67 + 6.2 = ? (a) 7.97 (b) 7.87 (c) 7.77 (d) 2.29
  6. 6.What is the value of the digit 4 in 49.813? (a) 40 (b) 0.4 (c) 4 (d) 0.04
  7. 7.What is the value of the digit 3 in 95.321? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  8. 8.9.01 + 7.5 = ? (a) 9.76 (b) 16.61 (c) 16.41 (d) 16.51
  9. 9.What is the value of the digit 9 in 96.315? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  10. 10.Which is the smallest: 0.77, 0.051, 0.637, 0.7? (a) 0.77 (b) 0.051 (c) 0.637 (d) 0.7
  11. 11.Which is the greatest: 0.5, 0.56, 0.054, 0.433? (a) 0.5 (b) 0.56 (c) 0.054 (d) 0.433
  12. 12.What is the value of the digit 7 in 47.132? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  13. 13.What is the value of the digit 8 in 48.126? (a) 0.8 (b) 0.08 (c) 80 (d) 8
  14. 14.What is the value of the digit 1 in 76.291? (a) 0.01 (b) 0.001 (c) 0.1 (d) 1
  15. 15.Which is the greatest: 0.4, 0.039, 0.44, 0.332? (a) 0.4 (b) 0.039 (c) 0.44 (d) 0.332
  16. 16.9.72 + 1.6 = ? (a) 11.42 (b) 11.22 (c) 11.32 (d) 9.88
  17. 17.5.52 + 8.9 = ? (a) 6.41 (b) 14.52 (c) 14.42 (d) 14.32
  18. 18.Which is the greatest: 0.67, 0.541, 0.6, 0.027? (a) 0.67 (b) 0.541 (c) 0.6 (d) 0.027
  19. 19.1.53 + 5.1 = ? (a) 2.04 (b) 6.53 (c) 6.73 (d) 6.63
  20. 20.5.78 + 8.3 = ? (a) 14.18 (b) 14.08 (c) 6.61 (d) 13.98
  21. 21.2.57 + 2.8 = ? (a) 2.85 (b) 5.37 (c) 5.47 (d) 5.27
  22. 22.Which is the smallest: 0.312, 0.44, 0.031, 0.4? (a) 0.312 (b) 0.44 (c) 0.031 (d) 0.4
  23. 23.Which is the greatest: 0.444, 0.58, 0.5, 0.084? (a) 0.444 (b) 0.58 (c) 0.5 (d) 0.084
  24. 24.7.01 + 1.1 = ? (a) 7.12 (b) 8.01 (c) 8.21 (d) 8.11
  25. 25.Which is the greatest: 0.695, 0.73, 0.092, 0.7? (a) 0.695 (b) 0.73 (c) 0.092 (d) 0.7
  26. 26.What is the value of the digit 3 in 81.635? (a) 0.003 (b) 0.03 (c) 0.3 (d) 3
  27. 27.8.66 + 3.8 = ? (a) 12.56 (b) 12.46 (c) 9.04 (d) 12.36
  28. 28.Which is the smallest: 0.038, 0.282, 0.3, 0.32? (a) 0.038 (b) 0.282 (c) 0.3 (d) 0.32
  29. 29.8.31 + 6.6 = ? (a) 15.01 (b) 14.91 (c) 14.81 (d) 8.97
  30. 30.What is the value of the digit 2 in 74.218? (a) 0.2 (b) 2 (c) 0.002 (d) 0.02
  31. 31.Which is the greatest: 0.087, 0.73, 0.677, 0.7? (a) 0.087 (b) 0.73 (c) 0.677 (d) 0.7
  32. 32.Which is the greatest: 0.4, 0.44, 0.066, 0.399? (a) 0.4 (b) 0.44 (c) 0.066 (d) 0.399
  33. 33.Which is the smallest: 0.063, 0.4, 0.46, 0.351? (a) 0.063 (b) 0.4 (c) 0.46 (d) 0.351
  34. 34.Which is the smallest: 0.067, 0.66, 0.6, 0.582? (a) 0.067 (b) 0.66 (c) 0.6 (d) 0.582
  35. 35.1.73 + 9.7 = ? (a) 11.43 (b) 2.7 (c) 11.33 (d) 11.53
  36. 36.What is the value of the digit 1 in 51.298? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  37. 37.4.67 + 5.5 = ? (a) 10.27 (b) 5.22 (c) 10.17 (d) 10.07
  38. 38.Which is the greatest: 0.217, 0.038, 0.3, 0.31? (a) 0.217 (b) 0.038 (c) 0.3 (d) 0.31
  39. 39.Which is the smallest: 0.74, 0.041, 0.669, 0.7? (a) 0.74 (b) 0.041 (c) 0.669 (d) 0.7
  40. 40.What is the value of the digit 6 in 23.168? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06

Answer key

  1. 0.34
  2. 0.036
  3. 0.7
  4. 0.34
  5. 7.87
  6. 40
  7. 0.3
  8. 16.51
  9. 90
  10. 0.051
  11. 0.56
  12. 7
  13. 8
  14. 0.001
  15. 0.44
  16. 11.32
  17. 14.42
  18. 0.67
  19. 6.63
  20. 14.08
  21. 5.37
  22. 0.031
  23. 0.58
  24. 8.11
  25. 0.73
  26. 0.03
  27. 12.46
  28. 0.038
  29. 14.91
  30. 0.2
  31. 0.73
  32. 0.44
  33. 0.063
  34. 0.067
  35. 11.43
  36. 1
  37. 10.17
  38. 0.31
  39. 0.041
  40. 0.06

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