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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 457 · 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 4 in 41.589? (a) 0.04 (b) 0.4 (c) 4 (d) 40
  2. 2.2.28 + 3.2 = ? (a) 5.58 (b) 5.48 (c) 2.6 (d) 5.38
  3. 3.2.84 + 5.2 = ? (a) 7.94 (b) 8.04 (c) 3.36 (d) 8.14
  4. 4.Which is the smallest: 0.086, 0.23, 0.2, 0.193? (a) 0.086 (b) 0.23 (c) 0.2 (d) 0.193
  5. 5.4.38 + 1.6 = ? (a) 5.88 (b) 4.54 (c) 5.98 (d) 6.08
  6. 6.6.31 + 8.5 = ? (a) 7.16 (b) 14.91 (c) 14.81 (d) 14.71
  7. 7.What is the value of the digit 8 in 87.563? (a) 0.08 (b) 0.8 (c) 80 (d) 8
  8. 8.Which is the greatest: 0.027, 0.162, 0.2, 0.22? (a) 0.027 (b) 0.162 (c) 0.2 (d) 0.22
  9. 9.4.87 + 4.8 = ? (a) 9.77 (b) 9.57 (c) 5.35 (d) 9.67
  10. 10.What is the value of the digit 3 in 23.154? (a) 0.03 (b) 30 (c) 3 (d) 0.3
  11. 11.What is the value of the digit 1 in 61.957? (a) 10 (b) 1 (c) 0.01 (d) 0.1
  12. 12.Which is the greatest: 0.086, 0.682, 0.7, 0.71? (a) 0.086 (b) 0.682 (c) 0.7 (d) 0.71
  13. 13.What is the value of the digit 1 in 82.134? (a) 0.1 (b) 0.01 (c) 1 (d) 0.001
  14. 14.What is the value of the digit 3 in 34.762? (a) 3 (b) 30 (c) 0.3 (d) 0.03
  15. 15.What is the value of the digit 1 in 13.857? (a) 1 (b) 10 (c) 0.01 (d) 0.1
  16. 16.Which is the smallest: 0.088, 0.755, 0.8, 0.88? (a) 0.088 (b) 0.755 (c) 0.8 (d) 0.88
  17. 17.Which is the greatest: 0.7, 0.049, 0.611, 0.72? (a) 0.7 (b) 0.049 (c) 0.611 (d) 0.72
  18. 18.What is the value of the digit 1 in 46.178? (a) 0.01 (b) 1 (c) 0.001 (d) 0.1
  19. 19.What is the value of the digit 6 in 69.172? (a) 0.06 (b) 0.6 (c) 6 (d) 60
  20. 20.What is the value of the digit 6 in 43.756? (a) 0.006 (b) 6 (c) 0.6 (d) 0.06
  21. 21.2.81 + 7.9 = ? (a) 3.6 (b) 10.61 (c) 10.71 (d) 10.81
  22. 22.What is the value of the digit 9 in 27.569? (a) 0.9 (b) 0.09 (c) 0.009 (d) 9
  23. 23.1.35 + 2.1 = ? (a) 3.45 (b) 3.55 (c) 3.35 (d) 1.56
  24. 24.What is the value of the digit 5 in 54.128? (a) 0.5 (b) 0.05 (c) 5 (d) 50
  25. 25.1.54 + 1.6 = ? (a) 1.7 (b) 3.14 (c) 3.04 (d) 3.24
  26. 26.Which is the smallest: 0.041, 0.4, 0.325, 0.42? (a) 0.041 (b) 0.4 (c) 0.325 (d) 0.42
  27. 27.4.97 + 8.2 = ? (a) 13.07 (b) 5.79 (c) 13.27 (d) 13.17
  28. 28.What is the value of the digit 4 in 24.893? (a) 40 (b) 0.04 (c) 0.4 (d) 4
  29. 29.Which is the smallest: 0.263, 0.014, 0.39, 0.3? (a) 0.263 (b) 0.014 (c) 0.39 (d) 0.3
  30. 30.Which is the greatest: 0.254, 0.015, 0.31, 0.3? (a) 0.254 (b) 0.015 (c) 0.31 (d) 0.3
  31. 31.Which is the greatest: 0.072, 0.2, 0.173, 0.28? (a) 0.072 (b) 0.2 (c) 0.173 (d) 0.28
  32. 32.2.96 + 8.8 = ? (a) 11.76 (b) 3.84 (c) 11.66 (d) 11.86
  33. 33.What is the value of the digit 2 in 71.239? (a) 0.2 (b) 0.002 (c) 2 (d) 0.02
  34. 34.4.34 + 2.6 = ? (a) 7.04 (b) 6.94 (c) 4.6 (d) 6.84
  35. 35.What is the value of the digit 3 in 58.379? (a) 0.003 (b) 0.3 (c) 3 (d) 0.03
  36. 36.What is the value of the digit 3 in 45.138? (a) 3 (b) 0.3 (c) 0.003 (d) 0.03
  37. 37.What is the value of the digit 4 in 47.183? (a) 4 (b) 0.4 (c) 0.04 (d) 40
  38. 38.3.91 + 3.2 = ? (a) 7.01 (b) 7.21 (c) 4.23 (d) 7.11
  39. 39.What is the value of the digit 9 in 23.498? (a) 0.09 (b) 9 (c) 0.9 (d) 0.009
  40. 40.2.21 + 9.9 = ? (a) 12.01 (b) 12.21 (c) 12.11 (d) 3.2

Answer key

  1. 40
  2. 5.48
  3. 8.04
  4. 0.086
  5. 5.98
  6. 14.81
  7. 80
  8. 0.22
  9. 9.67
  10. 3
  11. 1
  12. 0.71
  13. 0.1
  14. 30
  15. 10
  16. 0.088
  17. 0.72
  18. 0.1
  19. 60
  20. 0.006
  21. 10.71
  22. 0.009
  23. 3.45
  24. 50
  25. 3.14
  26. 0.041
  27. 13.17
  28. 4
  29. 0.014
  30. 0.31
  31. 0.28
  32. 11.76
  33. 0.2
  34. 6.94
  35. 0.3
  36. 0.03
  37. 40
  38. 7.11
  39. 0.09
  40. 12.11

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