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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 473 · 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: 0.84, 0.733, 0.061, 0.8? (a) 0.84 (b) 0.733 (c) 0.061 (d) 0.8
  2. 2.1.75 + 9.7 = ? (a) 11.35 (b) 2.72 (c) 11.55 (d) 11.45
  3. 3.What is the value of the digit 5 in 51.264? (a) 5 (b) 0.05 (c) 0.5 (d) 50
  4. 4.2.18 + 2.1 = ? (a) 4.28 (b) 4.38 (c) 4.18 (d) 2.39
  5. 5.What is the value of the digit 2 in 95.812? (a) 0.02 (b) 2 (c) 0.002 (d) 0.2
  6. 6.Which is the greatest: 0.733, 0.031, 0.86, 0.8? (a) 0.733 (b) 0.031 (c) 0.86 (d) 0.8
  7. 7.Which is the greatest: 0.725, 0.84, 0.033, 0.8? (a) 0.725 (b) 0.84 (c) 0.033 (d) 0.8
  8. 8.Which is the smallest: 0.7, 0.674, 0.72, 0.099? (a) 0.7 (b) 0.674 (c) 0.72 (d) 0.099
  9. 9.What is the value of the digit 9 in 94.276? (a) 9 (b) 90 (c) 0.09 (d) 0.9
  10. 10.8.51 + 1.6 = ? (a) 10.01 (b) 10.21 (c) 8.67 (d) 10.11
  11. 11.What is the value of the digit 1 in 31.597? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  12. 12.7.99 + 2.3 = ? (a) 10.39 (b) 10.19 (c) 8.22 (d) 10.29
  13. 13.Which is the greatest: 0.443, 0.5, 0.015, 0.55? (a) 0.443 (b) 0.5 (c) 0.015 (d) 0.55
  14. 14.4.43 + 5.5 = ? (a) 4.98 (b) 9.83 (c) 10.03 (d) 9.93
  15. 15.What is the value of the digit 7 in 71.856? (a) 0.07 (b) 70 (c) 7 (d) 0.7
  16. 16.2.51 + 2.9 = ? (a) 5.41 (b) 2.8 (c) 5.51 (d) 5.31
  17. 17.9.96 + 1.8 = ? (a) 10.14 (b) 11.66 (c) 11.86 (d) 11.76
  18. 18.6.05 + 7.7 = ? (a) 6.82 (b) 13.65 (c) 13.85 (d) 13.75
  19. 19.Which is the smallest: 0.486, 0.043, 0.5, 0.51? (a) 0.486 (b) 0.043 (c) 0.5 (d) 0.51
  20. 20.What is the value of the digit 1 in 43.921? (a) 1 (b) 0.001 (c) 0.1 (d) 0.01
  21. 21.5.18 + 4.7 = ? (a) 9.78 (b) 9.88 (c) 5.65 (d) 9.98
  22. 22.What is the value of the digit 4 in 54.397? (a) 40 (b) 0.4 (c) 0.04 (d) 4
  23. 23.5.03 + 9.1 = ? (a) 5.94 (b) 14.13 (c) 14.03 (d) 14.23
  24. 24.What is the value of the digit 4 in 87.143? (a) 4 (b) 0.4 (c) 0.004 (d) 0.04
  25. 25.Which is the smallest: 0.064, 0.372, 0.4, 0.41? (a) 0.064 (b) 0.372 (c) 0.4 (d) 0.41
  26. 26.2.15 + 7.7 = ? (a) 9.75 (b) 2.92 (c) 9.95 (d) 9.85
  27. 27.Which is the smallest: 0.82, 0.8, 0.064, 0.723? (a) 0.82 (b) 0.8 (c) 0.064 (d) 0.723
  28. 28.7.12 + 1.6 = ? (a) 8.62 (b) 7.28 (c) 8.82 (d) 8.72
  29. 29.4.62 + 6.6 = ? (a) 11.32 (b) 11.22 (c) 5.28 (d) 11.12
  30. 30.7.75 + 3.5 = ? (a) 8.1 (b) 11.15 (c) 11.35 (d) 11.25
  31. 31.Which is the greatest: 0.083, 0.173, 0.24, 0.2? (a) 0.083 (b) 0.173 (c) 0.24 (d) 0.2
  32. 32.7.41 + 2.1 = ? (a) 9.61 (b) 9.51 (c) 9.41 (d) 7.62
  33. 33.Which is the smallest: 0.214, 0.3, 0.057, 0.32? (a) 0.214 (b) 0.3 (c) 0.057 (d) 0.32
  34. 34.5.18 + 5.9 = ? (a) 5.77 (b) 10.98 (c) 11.18 (d) 11.08
  35. 35.8.98 + 8.3 = ? (a) 9.81 (b) 17.28 (c) 17.18 (d) 17.38
  36. 36.2.99 + 2.4 = ? (a) 5.49 (b) 3.23 (c) 5.39 (d) 5.29
  37. 37.Which is the greatest: 0.2, 0.197, 0.065, 0.23? (a) 0.2 (b) 0.197 (c) 0.065 (d) 0.23
  38. 38.What is the value of the digit 4 in 74.329? (a) 40 (b) 0.4 (c) 4 (d) 0.04
  39. 39.8.53 + 1.7 = ? (a) 8.7 (b) 10.13 (c) 10.33 (d) 10.23
  40. 40.What is the value of the digit 4 in 24.983? (a) 0.4 (b) 0.04 (c) 40 (d) 4

Answer key

  1. 0.84
  2. 11.45
  3. 50
  4. 4.28
  5. 0.002
  6. 0.86
  7. 0.84
  8. 0.099
  9. 90
  10. 10.11
  11. 1
  12. 10.29
  13. 0.55
  14. 9.93
  15. 70
  16. 5.41
  17. 11.76
  18. 13.75
  19. 0.043
  20. 0.001
  21. 9.88
  22. 4
  23. 14.13
  24. 0.04
  25. 0.064
  26. 9.85
  27. 0.064
  28. 8.72
  29. 11.22
  30. 11.25
  31. 0.24
  32. 9.51
  33. 0.057
  34. 11.08
  35. 17.28
  36. 5.39
  37. 0.23
  38. 4
  39. 10.23
  40. 4

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