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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 469 · 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. 1.2.96 + 8.8 = ? (a) 11.76 (b) 11.66 (c) 11.86 (d) 3.84
  2. 2.Which is the greatest: 0.386, 0.014, 0.4, 0.43? (a) 0.386 (b) 0.014 (c) 0.4 (d) 0.43
  3. 3.9.17 + 3.5 = ? (a) 9.52 (b) 12.67 (c) 12.57 (d) 12.77
  4. 4.Which is the greatest: 0.236, 0.35, 0.092, 0.3? (a) 0.236 (b) 0.35 (c) 0.092 (d) 0.3
  5. 5.Which is the greatest: 0.778, 0.89, 0.062, 0.8? (a) 0.778 (b) 0.89 (c) 0.062 (d) 0.8
  6. 6.Which is the greatest: 0.38, 0.046, 0.3, 0.275? (a) 0.38 (b) 0.046 (c) 0.3 (d) 0.275
  7. 7.Which is the smallest: 0.098, 0.26, 0.189, 0.2? (a) 0.098 (b) 0.26 (c) 0.189 (d) 0.2
  8. 8.Which is the greatest: 0.039, 0.543, 0.6, 0.63? (a) 0.039 (b) 0.543 (c) 0.6 (d) 0.63
  9. 9.What is the value of the digit 6 in 61.723? (a) 60 (b) 6 (c) 0.6 (d) 0.06
  10. 10.2.69 + 7.8 = ? (a) 10.59 (b) 3.47 (c) 10.49 (d) 10.39
  11. 11.Which is the greatest: 0.3, 0.279, 0.054, 0.36? (a) 0.3 (b) 0.279 (c) 0.054 (d) 0.36
  12. 12.2.51 + 7.1 = ? (a) 9.61 (b) 9.51 (c) 9.71 (d) 3.22
  13. 13.What is the value of the digit 9 in 91.685? (a) 0.9 (b) 9 (c) 0.09 (d) 90
  14. 14.What is the value of the digit 6 in 98.276? (a) 0.06 (b) 0.006 (c) 6 (d) 0.6
  15. 15.4.15 + 8.1 = ? (a) 4.96 (b) 12.15 (c) 12.25 (d) 12.35
  16. 16.9.95 + 2.1 = ? (a) 11.95 (b) 12.15 (c) 10.16 (d) 12.05
  17. 17.Which is the greatest: 0.5, 0.444, 0.041, 0.57? (a) 0.5 (b) 0.444 (c) 0.041 (d) 0.57
  18. 18.9.58 + 7.6 = ? (a) 17.08 (b) 17.28 (c) 10.34 (d) 17.18
  19. 19.Which is the smallest: 0.7, 0.71, 0.092, 0.638? (a) 0.7 (b) 0.71 (c) 0.092 (d) 0.638
  20. 20.8.41 + 6.4 = ? (a) 9.05 (b) 14.91 (c) 14.71 (d) 14.81
  21. 21.7.03 + 2.5 = ? (a) 9.43 (b) 9.63 (c) 7.28 (d) 9.53
  22. 22.What is the value of the digit 7 in 14.738? (a) 0.007 (b) 0.7 (c) 0.07 (d) 7
  23. 23.1.32 + 3.1 = ? (a) 1.63 (b) 4.32 (c) 4.42 (d) 4.52
  24. 24.What is the value of the digit 9 in 34.957? (a) 0.9 (b) 0.09 (c) 0.009 (d) 9
  25. 25.1.23 + 1.9 = ? (a) 3.13 (b) 1.42 (c) 3.23 (d) 3.03
  26. 26.9.91 + 1.2 = ? (a) 11.01 (b) 11.21 (c) 10.03 (d) 11.11
  27. 27.2.35 + 4.5 = ? (a) 6.95 (b) 6.75 (c) 2.8 (d) 6.85
  28. 28.3.11 + 6.1 = ? (a) 9.31 (b) 9.11 (c) 3.72 (d) 9.21
  29. 29.Which is the smallest: 0.73, 0.7, 0.652, 0.025? (a) 0.73 (b) 0.7 (c) 0.652 (d) 0.025
  30. 30.2.84 + 5.5 = ? (a) 3.39 (b) 8.24 (c) 8.34 (d) 8.44
  31. 31.6.16 + 9.9 = ? (a) 15.96 (b) 16.16 (c) 16.06 (d) 7.15
  32. 32.What is the value of the digit 1 in 83.921? (a) 0.1 (b) 0.001 (c) 1 (d) 0.01
  33. 33.What is the value of the digit 3 in 85.693? (a) 3 (b) 0.003 (c) 0.03 (d) 0.3
  34. 34.Which is the smallest: 0.713, 0.82, 0.026, 0.8? (a) 0.713 (b) 0.82 (c) 0.026 (d) 0.8
  35. 35.What is the value of the digit 6 in 94.256? (a) 0.006 (b) 0.06 (c) 6 (d) 0.6
  36. 36.9.81 + 6.8 = ? (a) 16.61 (b) 16.51 (c) 10.49 (d) 16.71
  37. 37.4.26 + 2.1 = ? (a) 6.26 (b) 4.47 (c) 6.46 (d) 6.36
  38. 38.Which is the smallest: 0.5, 0.59, 0.088, 0.439? (a) 0.5 (b) 0.59 (c) 0.088 (d) 0.439
  39. 39.What is the value of the digit 1 in 34.165? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  40. 40.What is the value of the digit 2 in 89.423? (a) 2 (b) 0.2 (c) 0.002 (d) 0.02

Answer key

  1. 11.76
  2. 0.43
  3. 12.67
  4. 0.35
  5. 0.89
  6. 0.38
  7. 0.098
  8. 0.63
  9. 60
  10. 10.49
  11. 0.36
  12. 9.61
  13. 90
  14. 0.006
  15. 12.25
  16. 12.05
  17. 0.57
  18. 17.18
  19. 0.092
  20. 14.81
  21. 9.53
  22. 0.7
  23. 4.42
  24. 0.9
  25. 3.13
  26. 11.11
  27. 6.85
  28. 9.21
  29. 0.025
  30. 8.34
  31. 16.06
  32. 0.001
  33. 0.003
  34. 0.026
  35. 0.006
  36. 16.61
  37. 6.36
  38. 0.088
  39. 0.1
  40. 0.02

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