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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 676 · 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. 1.6.71 + 6.3 = ? (a) 7.34 (b) 13.11 (c) 12.91 (d) 13.01
  2. 2.What is the value of the digit 9 in 59.237? (a) 90 (b) 0.09 (c) 9 (d) 0.9
  3. 3.What is the value of the digit 4 in 43.175? (a) 4 (b) 40 (c) 0.4 (d) 0.04
  4. 4.Which is the greatest: 0.026, 0.3, 0.34, 0.227? (a) 0.026 (b) 0.3 (c) 0.34 (d) 0.227
  5. 5.7.21 + 4.3 = ? (a) 7.64 (b) 11.41 (c) 11.61 (d) 11.51
  6. 6.Which is the greatest: 0.78, 0.614, 0.025, 0.7? (a) 0.78 (b) 0.614 (c) 0.025 (d) 0.7
  7. 7.What is the value of the digit 7 in 39.728? (a) 0.7 (b) 0.07 (c) 0.007 (d) 7
  8. 8.9.93 + 5.1 = ? (a) 15.03 (b) 10.44 (c) 15.13 (d) 14.93
  9. 9.3.02 + 2.6 = ? (a) 5.62 (b) 5.52 (c) 5.72 (d) 3.28
  10. 10.8.52 + 6.6 = ? (a) 15.02 (b) 9.18 (c) 15.12 (d) 15.22
  11. 11.3.25 + 4.4 = ? (a) 7.75 (b) 7.55 (c) 7.65 (d) 3.69
  12. 12.Which is the smallest: 0.497, 0.51, 0.046, 0.5? (a) 0.497 (b) 0.51 (c) 0.046 (d) 0.5
  13. 13.What is the value of the digit 2 in 14.829? (a) 0.002 (b) 0.2 (c) 0.02 (d) 2
  14. 14.What is the value of the digit 6 in 14.962? (a) 0.6 (b) 6 (c) 0.06 (d) 0.006
  15. 15.9.18 + 1.6 = ? (a) 9.34 (b) 10.78 (c) 10.88 (d) 10.68
  16. 16.9.16 + 3.1 = ? (a) 12.16 (b) 9.47 (c) 12.36 (d) 12.26
  17. 17.3.11 + 5.9 = ? (a) 3.7 (b) 9.01 (c) 9.11 (d) 8.91
  18. 18.3.44 + 7.9 = ? (a) 11.44 (b) 4.23 (c) 11.34 (d) 11.24
  19. 19.What is the value of the digit 6 in 45.276? (a) 0.6 (b) 0.06 (c) 6 (d) 0.006
  20. 20.Which is the smallest: 0.3, 0.216, 0.073, 0.32? (a) 0.3 (b) 0.216 (c) 0.073 (d) 0.32
  21. 21.Which is the smallest: 0.87, 0.039, 0.8, 0.787? (a) 0.87 (b) 0.039 (c) 0.8 (d) 0.787
  22. 22.What is the value of the digit 5 in 39.457? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  23. 23.Which is the smallest: 0.511, 0.063, 0.63, 0.6? (a) 0.511 (b) 0.063 (c) 0.63 (d) 0.6
  24. 24.6.75 + 2.1 = ? (a) 8.75 (b) 8.85 (c) 8.95 (d) 6.96
  25. 25.8.16 + 7.9 = ? (a) 8.95 (b) 16.16 (c) 16.06 (d) 15.96
  26. 26.Which is the smallest: 0.88, 0.8, 0.045, 0.751? (a) 0.88 (b) 0.8 (c) 0.045 (d) 0.751
  27. 27.Which is the smallest: 0.179, 0.26, 0.064, 0.2? (a) 0.179 (b) 0.26 (c) 0.064 (d) 0.2
  28. 28.What is the value of the digit 1 in 91.643? (a) 10 (b) 1 (c) 0.1 (d) 0.01
  29. 29.What is the value of the digit 9 in 96.231? (a) 0.09 (b) 90 (c) 9 (d) 0.9
  30. 30.6.53 + 9.5 = ? (a) 15.93 (b) 16.13 (c) 16.03 (d) 7.48
  31. 31.Which is the smallest: 0.23, 0.2, 0.011, 0.147? (a) 0.23 (b) 0.2 (c) 0.011 (d) 0.147
  32. 32.3.61 + 5.3 = ? (a) 8.81 (b) 4.14 (c) 8.91 (d) 9.01
  33. 33.1.63 + 1.1 = ? (a) 2.73 (b) 2.83 (c) 1.74 (d) 2.63
  34. 34.What is the value of the digit 5 in 62.395? (a) 0.05 (b) 5 (c) 0.005 (d) 0.5
  35. 35.Which is the greatest: 0.7, 0.045, 0.78, 0.624? (a) 0.7 (b) 0.045 (c) 0.78 (d) 0.624
  36. 36.What is the value of the digit 8 in 21.384? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  37. 37.Which is the greatest: 0.81, 0.8, 0.794, 0.025? (a) 0.81 (b) 0.8 (c) 0.794 (d) 0.025
  38. 38.7.39 + 8.6 = ? (a) 8.25 (b) 16.09 (c) 15.99 (d) 15.89
  39. 39.5.85 + 2.1 = ? (a) 7.95 (b) 8.05 (c) 6.06 (d) 7.85
  40. 40.3.41 + 2.3 = ? (a) 3.64 (b) 5.81 (c) 5.71 (d) 5.61

Answer key

  1. 13.01
  2. 9
  3. 40
  4. 0.34
  5. 11.51
  6. 0.78
  7. 0.7
  8. 15.03
  9. 5.62
  10. 15.12
  11. 7.65
  12. 0.046
  13. 0.02
  14. 0.06
  15. 10.78
  16. 12.26
  17. 9.01
  18. 11.34
  19. 0.006
  20. 0.073
  21. 0.039
  22. 0.05
  23. 0.063
  24. 8.85
  25. 16.06
  26. 0.045
  27. 0.064
  28. 1
  29. 90
  30. 16.03
  31. 0.011
  32. 8.91
  33. 2.73
  34. 0.005
  35. 0.78
  36. 0.08
  37. 0.81
  38. 15.99
  39. 7.95
  40. 5.71

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