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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 591 · 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 9 in 81.269? (a) 0.009 (b) 9 (c) 0.9 (d) 0.09
  2. 2.2.27 + 2.1 = ? (a) 4.47 (b) 2.48 (c) 4.37 (d) 4.27
  3. 3.What is the value of the digit 9 in 65.419? (a) 0.9 (b) 0.009 (c) 9 (d) 0.09
  4. 4.4.21 + 3.4 = ? (a) 4.55 (b) 7.51 (c) 7.61 (d) 7.71
  5. 5.Which is the greatest: 0.382, 0.028, 0.42, 0.4? (a) 0.382 (b) 0.028 (c) 0.42 (d) 0.4
  6. 6.7.34 + 2.2 = ? (a) 9.44 (b) 9.54 (c) 9.64 (d) 7.56
  7. 7.What is the value of the digit 5 in 43.752? (a) 0.05 (b) 0.005 (c) 0.5 (d) 5
  8. 8.5.58 + 2.6 = ? (a) 8.28 (b) 8.18 (c) 8.08 (d) 5.84
  9. 9.What is the value of the digit 9 in 71.984? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  10. 10.What is the value of the digit 5 in 89.275? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  11. 11.Which is the greatest: 0.393, 0.45, 0.4, 0.022? (a) 0.393 (b) 0.45 (c) 0.4 (d) 0.022
  12. 12.Which is the smallest: 0.2, 0.123, 0.083, 0.27? (a) 0.2 (b) 0.123 (c) 0.083 (d) 0.27
  13. 13.What is the value of the digit 5 in 52.183? (a) 0.5 (b) 5 (c) 0.05 (d) 50
  14. 14.9.11 + 9.4 = ? (a) 18.61 (b) 18.51 (c) 10.05 (d) 18.41
  15. 15.2.05 + 9.4 = ? (a) 11.55 (b) 11.45 (c) 2.99 (d) 11.35
  16. 16.What is the value of the digit 3 in 79.123? (a) 0.03 (b) 3 (c) 0.3 (d) 0.003
  17. 17.What is the value of the digit 4 in 54.762? (a) 40 (b) 0.4 (c) 4 (d) 0.04
  18. 18.What is the value of the digit 2 in 86.297? (a) 0.2 (b) 0.02 (c) 0.002 (d) 2
  19. 19.6.19 + 4.2 = ? (a) 10.39 (b) 6.61 (c) 10.29 (d) 10.49
  20. 20.Which is the greatest: 0.738, 0.8, 0.013, 0.89? (a) 0.738 (b) 0.8 (c) 0.013 (d) 0.89
  21. 21.What is the value of the digit 5 in 45.897? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  22. 22.5.88 + 1.7 = ? (a) 7.48 (b) 7.58 (c) 7.68 (d) 6.05
  23. 23.3.59 + 9.5 = ? (a) 4.54 (b) 13.19 (c) 12.99 (d) 13.09
  24. 24.What is the value of the digit 5 in 84.725? (a) 0.5 (b) 0.005 (c) 5 (d) 0.05
  25. 25.What is the value of the digit 5 in 84.356? (a) 0.5 (b) 0.005 (c) 0.05 (d) 5
  26. 26.9.52 + 4.3 = ? (a) 9.95 (b) 13.92 (c) 13.72 (d) 13.82
  27. 27.2.38 + 1.5 = ? (a) 2.53 (b) 3.88 (c) 3.78 (d) 3.98
  28. 28.What is the value of the digit 9 in 37.859? (a) 0.9 (b) 0.009 (c) 0.09 (d) 9
  29. 29.Which is the greatest: 0.197, 0.2, 0.26, 0.025? (a) 0.197 (b) 0.2 (c) 0.26 (d) 0.025
  30. 30.1.82 + 3.8 = ? (a) 2.2 (b) 5.62 (c) 5.72 (d) 5.52
  31. 31.Which is the smallest: 0.6, 0.097, 0.66, 0.518? (a) 0.6 (b) 0.097 (c) 0.66 (d) 0.518
  32. 32.What is the value of the digit 4 in 14.962? (a) 0.04 (b) 4 (c) 0.4 (d) 40
  33. 33.3.87 + 1.8 = ? (a) 5.57 (b) 5.67 (c) 4.05 (d) 5.77
  34. 34.Which is the greatest: 0.34, 0.246, 0.041, 0.3? (a) 0.34 (b) 0.246 (c) 0.041 (d) 0.3
  35. 35.Which is the smallest: 0.6, 0.027, 0.65, 0.538? (a) 0.6 (b) 0.027 (c) 0.65 (d) 0.538
  36. 36.1.15 + 5.9 = ? (a) 6.95 (b) 7.15 (c) 1.74 (d) 7.05
  37. 37.What is the value of the digit 9 in 92.814? (a) 9 (b) 0.9 (c) 90 (d) 0.09
  38. 38.What is the value of the digit 5 in 39.745? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  39. 39.2.96 + 3.1 = ? (a) 6.16 (b) 6.06 (c) 5.96 (d) 3.27
  40. 40.What is the value of the digit 6 in 65.941? (a) 6 (b) 0.06 (c) 60 (d) 0.6

Answer key

  1. 0.009
  2. 4.37
  3. 0.009
  4. 7.61
  5. 0.42
  6. 9.54
  7. 0.05
  8. 8.18
  9. 0.9
  10. 0.005
  11. 0.45
  12. 0.083
  13. 50
  14. 18.51
  15. 11.45
  16. 0.003
  17. 4
  18. 0.2
  19. 10.39
  20. 0.89
  21. 5
  22. 7.58
  23. 13.09
  24. 0.005
  25. 0.05
  26. 13.82
  27. 3.88
  28. 0.009
  29. 0.26
  30. 5.62
  31. 0.097
  32. 4
  33. 5.67
  34. 0.34
  35. 0.027
  36. 7.05
  37. 90
  38. 0.005
  39. 6.06
  40. 60

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