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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 376 · 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. 1.7.27 + 2.7 = ? (a) 7.54 (b) 9.87 (c) 10.07 (d) 9.97
  2. 2.Which is the smallest: 0.63, 0.549, 0.6, 0.064? (a) 0.63 (b) 0.549 (c) 0.6 (d) 0.064
  3. 3.4.74 + 8.1 = ? (a) 12.74 (b) 12.94 (c) 12.84 (d) 5.55
  4. 4.What is the value of the digit 3 in 43.291? (a) 0.03 (b) 3 (c) 0.3 (d) 30
  5. 5.Which is the greatest: 0.029, 0.434, 0.5, 0.58? (a) 0.029 (b) 0.434 (c) 0.5 (d) 0.58
  6. 6.What is the value of the digit 4 in 94.528? (a) 0.04 (b) 0.4 (c) 40 (d) 4
  7. 7.7.25 + 8.4 = ? (a) 15.55 (b) 15.65 (c) 15.75 (d) 8.09
  8. 8.Which is the greatest: 0.753, 0.8, 0.83, 0.078? (a) 0.753 (b) 0.8 (c) 0.83 (d) 0.078
  9. 9.What is the value of the digit 1 in 81.697? (a) 10 (b) 0.1 (c) 0.01 (d) 1
  10. 10.1.27 + 8.2 = ? (a) 9.37 (b) 9.57 (c) 9.47 (d) 2.09
  11. 11.3.11 + 2.1 = ? (a) 3.32 (b) 5.11 (c) 5.31 (d) 5.21
  12. 12.Which is the greatest: 0.22, 0.136, 0.2, 0.037? (a) 0.22 (b) 0.136 (c) 0.2 (d) 0.037
  13. 13.Which is the greatest: 0.159, 0.26, 0.2, 0.065? (a) 0.159 (b) 0.26 (c) 0.2 (d) 0.065
  14. 14.What is the value of the digit 3 in 91.483? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  15. 15.Which is the greatest: 0.54, 0.016, 0.479, 0.5? (a) 0.54 (b) 0.016 (c) 0.479 (d) 0.5
  16. 16.Which is the smallest: 0.434, 0.018, 0.55, 0.5? (a) 0.434 (b) 0.018 (c) 0.55 (d) 0.5
  17. 17.6.21 + 4.3 = ? (a) 6.64 (b) 10.61 (c) 10.51 (d) 10.41
  18. 18.What is the value of the digit 7 in 17.639? (a) 70 (b) 0.07 (c) 0.7 (d) 7
  19. 19.6.85 + 3.1 = ? (a) 10.05 (b) 7.16 (c) 9.85 (d) 9.95
  20. 20.3.71 + 2.6 = ? (a) 6.41 (b) 3.97 (c) 6.21 (d) 6.31
  21. 21.3.41 + 7.7 = ? (a) 11.01 (b) 4.18 (c) 11.11 (d) 11.21
  22. 22.7.72 + 8.2 = ? (a) 16.02 (b) 8.54 (c) 15.82 (d) 15.92
  23. 23.Which is the smallest: 0.612, 0.75, 0.7, 0.013? (a) 0.612 (b) 0.75 (c) 0.7 (d) 0.013
  24. 24.Which is the greatest: 0.464, 0.076, 0.59, 0.5? (a) 0.464 (b) 0.076 (c) 0.59 (d) 0.5
  25. 25.Which is the greatest: 0.089, 0.246, 0.36, 0.3? (a) 0.089 (b) 0.246 (c) 0.36 (d) 0.3
  26. 26.3.45 + 9.6 = ? (a) 13.05 (b) 4.41 (c) 12.95 (d) 13.15
  27. 27.What is the value of the digit 6 in 81.642? (a) 0.06 (b) 6 (c) 0.6 (d) 0.006
  28. 28.Which is the greatest: 0.447, 0.063, 0.51, 0.5? (a) 0.447 (b) 0.063 (c) 0.51 (d) 0.5
  29. 29.What is the value of the digit 1 in 48.915? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  30. 30.9.47 + 1.1 = ? (a) 9.58 (b) 10.47 (c) 10.67 (d) 10.57
  31. 31.4.36 + 1.1 = ? (a) 5.56 (b) 4.47 (c) 5.36 (d) 5.46
  32. 32.What is the value of the digit 7 in 54.178? (a) 0.007 (b) 0.7 (c) 7 (d) 0.07
  33. 33.7.97 + 2.7 = ? (a) 8.24 (b) 10.77 (c) 10.67 (d) 10.57
  34. 34.Which is the smallest: 0.013, 0.528, 0.65, 0.6? (a) 0.013 (b) 0.528 (c) 0.65 (d) 0.6
  35. 35.2.04 + 9.2 = ? (a) 11.34 (b) 11.14 (c) 11.24 (d) 2.96
  36. 36.Which is the greatest: 0.5, 0.481, 0.57, 0.098? (a) 0.5 (b) 0.481 (c) 0.57 (d) 0.098
  37. 37.5.22 + 6.1 = ? (a) 5.83 (b) 11.22 (c) 11.32 (d) 11.42
  38. 38.3.21 + 9.9 = ? (a) 13.01 (b) 13.21 (c) 13.11 (d) 4.2
  39. 39.Which is the greatest: 0.036, 0.6, 0.65, 0.564? (a) 0.036 (b) 0.6 (c) 0.65 (d) 0.564
  40. 40.Which is the smallest: 0.096, 0.53, 0.458, 0.5? (a) 0.096 (b) 0.53 (c) 0.458 (d) 0.5

Answer key

  1. 9.97
  2. 0.064
  3. 12.84
  4. 3
  5. 0.58
  6. 4
  7. 15.65
  8. 0.83
  9. 1
  10. 9.47
  11. 5.21
  12. 0.22
  13. 0.26
  14. 0.003
  15. 0.54
  16. 0.018
  17. 10.51
  18. 7
  19. 9.95
  20. 6.31
  21. 11.11
  22. 15.92
  23. 0.013
  24. 0.59
  25. 0.36
  26. 13.05
  27. 0.6
  28. 0.51
  29. 0.01
  30. 10.57
  31. 5.46
  32. 0.07
  33. 10.67
  34. 0.013
  35. 11.24
  36. 0.57
  37. 11.32
  38. 13.11
  39. 0.65
  40. 0.096

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