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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 980 · 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 smallest: 0.3, 0.085, 0.277, 0.36? (a) 0.3 (b) 0.085 (c) 0.277 (d) 0.36
  2. 2.What is the value of the digit 2 in 32.719? (a) 0.02 (b) 0.2 (c) 20 (d) 2
  3. 3.6.56 + 5.5 = ? (a) 11.96 (b) 12.16 (c) 12.06 (d) 7.11
  4. 4.What is the value of the digit 1 in 89.146? (a) 0.1 (b) 1 (c) 0.001 (d) 0.01
  5. 5.What is the value of the digit 7 in 87.245? (a) 7 (b) 70 (c) 0.07 (d) 0.7
  6. 6.8.22 + 3.8 = ? (a) 12.12 (b) 11.92 (c) 8.6 (d) 12.02
  7. 7.What is the value of the digit 5 in 54.239? (a) 0.05 (b) 0.5 (c) 5 (d) 50
  8. 8.What is the value of the digit 7 in 85.273? (a) 0.7 (b) 0.007 (c) 7 (d) 0.07
  9. 9.What is the value of the digit 6 in 69.352? (a) 0.6 (b) 0.06 (c) 6 (d) 60
  10. 10.7.78 + 2.4 = ? (a) 10.28 (b) 10.18 (c) 8.02 (d) 10.08
  11. 11.1.53 + 6.2 = ? (a) 2.15 (b) 7.83 (c) 7.63 (d) 7.73
  12. 12.What is the value of the digit 5 in 81.256? (a) 0.5 (b) 0.05 (c) 0.005 (d) 5
  13. 13.9.11 + 5.6 = ? (a) 14.81 (b) 9.67 (c) 14.71 (d) 14.61
  14. 14.Which is the smallest: 0.2, 0.145, 0.025, 0.24? (a) 0.2 (b) 0.145 (c) 0.025 (d) 0.24
  15. 15.What is the value of the digit 1 in 85.134? (a) 0.001 (b) 0.01 (c) 1 (d) 0.1
  16. 16.What is the value of the digit 1 in 84.165? (a) 1 (b) 0.01 (c) 0.1 (d) 0.001
  17. 17.What is the value of the digit 2 in 37.291? (a) 0.002 (b) 0.02 (c) 0.2 (d) 2
  18. 18.Which is the smallest: 0.065, 0.2, 0.159, 0.28? (a) 0.065 (b) 0.2 (c) 0.159 (d) 0.28
  19. 19.Which is the smallest: 0.722, 0.8, 0.82, 0.033? (a) 0.722 (b) 0.8 (c) 0.82 (d) 0.033
  20. 20.Which is the smallest: 0.022, 0.678, 0.77, 0.7? (a) 0.022 (b) 0.678 (c) 0.77 (d) 0.7
  21. 21.What is the value of the digit 3 in 17.239? (a) 3 (b) 0.03 (c) 0.003 (d) 0.3
  22. 22.Which is the smallest: 0.724, 0.8, 0.83, 0.064? (a) 0.724 (b) 0.8 (c) 0.83 (d) 0.064
  23. 23.What is the value of the digit 2 in 15.726? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  24. 24.What is the value of the digit 2 in 17.352? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  25. 25.What is the value of the digit 7 in 58.637? (a) 0.07 (b) 0.007 (c) 7 (d) 0.7
  26. 26.7.72 + 6.4 = ? (a) 14.22 (b) 14.02 (c) 8.36 (d) 14.12
  27. 27.What is the value of the digit 6 in 31.689? (a) 0.6 (b) 0.06 (c) 0.006 (d) 6
  28. 28.What is the value of the digit 1 in 51.273? (a) 0.1 (b) 1 (c) 0.01 (d) 10
  29. 29.What is the value of the digit 9 in 94.173? (a) 0.09 (b) 0.9 (c) 90 (d) 9
  30. 30.2.18 + 5.7 = ? (a) 7.98 (b) 7.88 (c) 2.75 (d) 7.78
  31. 31.What is the value of the digit 2 in 13.628? (a) 2 (b) 0.02 (c) 0.002 (d) 0.2
  32. 32.Which is the smallest: 0.73, 0.624, 0.7, 0.057? (a) 0.73 (b) 0.624 (c) 0.7 (d) 0.057
  33. 33.What is the value of the digit 9 in 91.832? (a) 90 (b) 0.9 (c) 0.09 (d) 9
  34. 34.1.41 + 2.3 = ? (a) 1.64 (b) 3.81 (c) 3.61 (d) 3.71
  35. 35.2.08 + 4.2 = ? (a) 2.5 (b) 6.18 (c) 6.28 (d) 6.38
  36. 36.What is the value of the digit 4 in 46.173? (a) 0.04 (b) 40 (c) 4 (d) 0.4
  37. 37.What is the value of the digit 7 in 47.326? (a) 70 (b) 0.7 (c) 7 (d) 0.07
  38. 38.What is the value of the digit 3 in 42.368? (a) 3 (b) 0.03 (c) 0.3 (d) 0.003
  39. 39.1.08 + 6.4 = ? (a) 1.72 (b) 7.58 (c) 7.48 (d) 7.38
  40. 40.8.81 + 2.7 = ? (a) 11.61 (b) 9.08 (c) 11.51 (d) 11.41

Answer key

  1. 0.085
  2. 2
  3. 12.06
  4. 0.1
  5. 7
  6. 12.02
  7. 50
  8. 0.07
  9. 60
  10. 10.18
  11. 7.73
  12. 0.05
  13. 14.71
  14. 0.025
  15. 0.1
  16. 0.1
  17. 0.2
  18. 0.065
  19. 0.033
  20. 0.022
  21. 0.03
  22. 0.064
  23. 0.02
  24. 0.002
  25. 0.007
  26. 14.12
  27. 0.6
  28. 1
  29. 90
  30. 7.88
  31. 0.02
  32. 0.057
  33. 90
  34. 3.71
  35. 6.28
  36. 40
  37. 7
  38. 0.3
  39. 7.48
  40. 11.51

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