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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 317 · 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.What is the value of the digit 8 in 64.158? (a) 0.8 (b) 0.08 (c) 8 (d) 0.008
  2. 2.7.71 + 1.5 = ? (a) 9.11 (b) 7.86 (c) 9.31 (d) 9.21
  3. 3.What is the value of the digit 2 in 28.379? (a) 0.02 (b) 20 (c) 0.2 (d) 2
  4. 4.1.36 + 6.1 = ? (a) 7.46 (b) 1.97 (c) 7.56 (d) 7.36
  5. 5.5.43 + 3.9 = ? (a) 9.23 (b) 5.82 (c) 9.33 (d) 9.43
  6. 6.Which is the greatest: 0.77, 0.031, 0.623, 0.7? (a) 0.77 (b) 0.031 (c) 0.623 (d) 0.7
  7. 7.What is the value of the digit 2 in 84.217? (a) 0.02 (b) 0.2 (c) 0.002 (d) 2
  8. 8.Which is the smallest: 0.72, 0.029, 0.7, 0.676? (a) 0.72 (b) 0.029 (c) 0.7 (d) 0.676
  9. 9.3.57 + 4.8 = ? (a) 8.27 (b) 4.05 (c) 8.37 (d) 8.47
  10. 10.Which is the greatest: 0.6, 0.085, 0.61, 0.537? (a) 0.6 (b) 0.085 (c) 0.61 (d) 0.537
  11. 11.3.51 + 8.3 = ? (a) 11.71 (b) 11.81 (c) 4.34 (d) 11.91
  12. 12.Which is the smallest: 0.075, 0.226, 0.32, 0.3? (a) 0.075 (b) 0.226 (c) 0.32 (d) 0.3
  13. 13.Which is the smallest: 0.526, 0.65, 0.6, 0.027? (a) 0.526 (b) 0.65 (c) 0.6 (d) 0.027
  14. 14.8.44 + 9.4 = ? (a) 9.38 (b) 17.74 (c) 17.94 (d) 17.84
  15. 15.2.42 + 5.8 = ? (a) 8.12 (b) 8.32 (c) 3 (d) 8.22
  16. 16.Which is the smallest: 0.52, 0.082, 0.5, 0.438? (a) 0.52 (b) 0.082 (c) 0.5 (d) 0.438
  17. 17.3.29 + 7.5 = ? (a) 10.69 (b) 10.89 (c) 10.79 (d) 4.04
  18. 18.What is the value of the digit 9 in 84.395? (a) 0.9 (b) 9 (c) 0.009 (d) 0.09
  19. 19.What is the value of the digit 8 in 96.814? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  20. 20.8.63 + 2.6 = ? (a) 8.89 (b) 11.13 (c) 11.33 (d) 11.23
  21. 21.What is the value of the digit 7 in 68.517? (a) 0.7 (b) 0.007 (c) 0.07 (d) 7
  22. 22.Which is the greatest: 0.3, 0.028, 0.239, 0.31? (a) 0.3 (b) 0.028 (c) 0.239 (d) 0.31
  23. 23.Which is the smallest: 0.499, 0.57, 0.028, 0.5? (a) 0.499 (b) 0.57 (c) 0.028 (d) 0.5
  24. 24.What is the value of the digit 7 in 46.751? (a) 7 (b) 0.07 (c) 0.7 (d) 0.007
  25. 25.6.41 + 2.2 = ? (a) 8.61 (b) 8.51 (c) 8.71 (d) 6.63
  26. 26.What is the value of the digit 9 in 24.391? (a) 0.09 (b) 0.009 (c) 9 (d) 0.9
  27. 27.8.72 + 8.1 = ? (a) 9.53 (b) 16.72 (c) 16.82 (d) 16.92
  28. 28.Which is the smallest: 0.2, 0.112, 0.011, 0.25? (a) 0.2 (b) 0.112 (c) 0.011 (d) 0.25
  29. 29.Which is the greatest: 0.27, 0.045, 0.189, 0.2? (a) 0.27 (b) 0.045 (c) 0.189 (d) 0.2
  30. 30.What is the value of the digit 8 in 97.258? (a) 0.008 (b) 0.8 (c) 8 (d) 0.08
  31. 31.Which is the greatest: 0.761, 0.83, 0.026, 0.8? (a) 0.761 (b) 0.83 (c) 0.026 (d) 0.8
  32. 32.8.36 + 9.5 = ? (a) 17.76 (b) 17.86 (c) 9.31 (d) 17.96
  33. 33.1.14 + 2.2 = ? (a) 3.44 (b) 1.36 (c) 3.24 (d) 3.34
  34. 34.What is the value of the digit 4 in 71.486? (a) 0.4 (b) 0.004 (c) 4 (d) 0.04
  35. 35.Which is the greatest: 0.427, 0.059, 0.5, 0.53? (a) 0.427 (b) 0.059 (c) 0.5 (d) 0.53
  36. 36.What is the value of the digit 7 in 73.286? (a) 0.7 (b) 0.07 (c) 7 (d) 70
  37. 37.Which is the smallest: 0.51, 0.018, 0.457, 0.5? (a) 0.51 (b) 0.018 (c) 0.457 (d) 0.5
  38. 38.6.93 + 4.1 = ? (a) 7.34 (b) 11.03 (c) 11.13 (d) 10.93
  39. 39.7.85 + 9.6 = ? (a) 17.35 (b) 8.81 (c) 17.55 (d) 17.45
  40. 40.What is the value of the digit 6 in 64.239? (a) 60 (b) 0.06 (c) 6 (d) 0.6

Answer key

  1. 0.008
  2. 9.21
  3. 20
  4. 7.46
  5. 9.33
  6. 0.77
  7. 0.2
  8. 0.029
  9. 8.37
  10. 0.61
  11. 11.81
  12. 0.075
  13. 0.027
  14. 17.84
  15. 8.22
  16. 0.082
  17. 10.79
  18. 0.09
  19. 0.8
  20. 11.23
  21. 0.007
  22. 0.31
  23. 0.028
  24. 0.7
  25. 8.61
  26. 0.09
  27. 16.82
  28. 0.011
  29. 0.27
  30. 0.008
  31. 0.83
  32. 17.86
  33. 3.34
  34. 0.4
  35. 0.53
  36. 70
  37. 0.018
  38. 11.03
  39. 17.45
  40. 60

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