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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 826 · 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 1 in 24.178? (a) 1 (b) 0.01 (c) 0.001 (d) 0.1
  2. 2.What is the value of the digit 4 in 21.475? (a) 0.04 (b) 0.004 (c) 4 (d) 0.4
  3. 3.Which is the greatest: 0.86, 0.023, 0.8, 0.785? (a) 0.86 (b) 0.023 (c) 0.8 (d) 0.785
  4. 4.What is the value of the digit 8 in 83.674? (a) 8 (b) 0.8 (c) 0.08 (d) 80
  5. 5.Which is the greatest: 0.2, 0.28, 0.129, 0.061? (a) 0.2 (b) 0.28 (c) 0.129 (d) 0.061
  6. 6.7.55 + 1.7 = ? (a) 9.35 (b) 7.72 (c) 9.25 (d) 9.15
  7. 7.What is the value of the digit 1 in 81.753? (a) 0.1 (b) 10 (c) 0.01 (d) 1
  8. 8.Which is the greatest: 0.373, 0.4, 0.052, 0.44? (a) 0.373 (b) 0.4 (c) 0.052 (d) 0.44
  9. 9.Which is the greatest: 0.553, 0.019, 0.61, 0.6? (a) 0.553 (b) 0.019 (c) 0.61 (d) 0.6
  10. 10.What is the value of the digit 9 in 95.147? (a) 90 (b) 0.09 (c) 9 (d) 0.9
  11. 11.5.04 + 5.1 = ? (a) 10.14 (b) 10.04 (c) 5.55 (d) 10.24
  12. 12.7.64 + 5.6 = ? (a) 13.14 (b) 13.34 (c) 13.24 (d) 8.2
  13. 13.Which is the greatest: 0.762, 0.093, 0.89, 0.8? (a) 0.762 (b) 0.093 (c) 0.89 (d) 0.8
  14. 14.4.24 + 7.1 = ? (a) 11.44 (b) 11.34 (c) 4.95 (d) 11.24
  15. 15.Which is the smallest: 0.88, 0.033, 0.8, 0.726? (a) 0.88 (b) 0.033 (c) 0.8 (d) 0.726
  16. 16.Which is the greatest: 0.268, 0.33, 0.053, 0.3? (a) 0.268 (b) 0.33 (c) 0.053 (d) 0.3
  17. 17.2.01 + 9.6 = ? (a) 11.51 (b) 2.97 (c) 11.71 (d) 11.61
  18. 18.Which is the greatest: 0.022, 0.178, 0.2, 0.23? (a) 0.022 (b) 0.178 (c) 0.2 (d) 0.23
  19. 19.What is the value of the digit 7 in 58.271? (a) 0.07 (b) 0.007 (c) 0.7 (d) 7
  20. 20.What is the value of the digit 1 in 93.124? (a) 0.001 (b) 0.1 (c) 1 (d) 0.01
  21. 21.8.02 + 6.8 = ? (a) 14.92 (b) 8.7 (c) 14.72 (d) 14.82
  22. 22.Which is the smallest: 0.793, 0.85, 0.8, 0.066? (a) 0.793 (b) 0.85 (c) 0.8 (d) 0.066
  23. 23.9.36 + 3.9 = ? (a) 9.75 (b) 13.26 (c) 13.36 (d) 13.16
  24. 24.What is the value of the digit 2 in 39.812? (a) 2 (b) 0.02 (c) 0.2 (d) 0.002
  25. 25.Which is the greatest: 0.83, 0.788, 0.031, 0.8? (a) 0.83 (b) 0.788 (c) 0.031 (d) 0.8
  26. 26.Which is the greatest: 0.4, 0.45, 0.014, 0.386? (a) 0.4 (b) 0.45 (c) 0.014 (d) 0.386
  27. 27.2.08 + 4.5 = ? (a) 6.48 (b) 6.58 (c) 6.68 (d) 2.53
  28. 28.3.85 + 4.8 = ? (a) 4.33 (b) 8.65 (c) 8.75 (d) 8.55
  29. 29.Which is the greatest: 0.053, 0.562, 0.6, 0.69? (a) 0.053 (b) 0.562 (c) 0.6 (d) 0.69
  30. 30.Which is the smallest: 0.66, 0.078, 0.518, 0.6? (a) 0.66 (b) 0.078 (c) 0.518 (d) 0.6
  31. 31.2.35 + 9.2 = ? (a) 11.55 (b) 11.65 (c) 3.27 (d) 11.45
  32. 32.4.78 + 3.2 = ? (a) 8.08 (b) 5.1 (c) 7.88 (d) 7.98
  33. 33.Which is the greatest: 0.85, 0.075, 0.714, 0.8? (a) 0.85 (b) 0.075 (c) 0.714 (d) 0.8
  34. 34.What is the value of the digit 3 in 97.135? (a) 3 (b) 0.3 (c) 0.03 (d) 0.003
  35. 35.5.02 + 5.4 = ? (a) 10.52 (b) 10.32 (c) 10.42 (d) 5.56
  36. 36.9.22 + 1.2 = ? (a) 10.52 (b) 10.32 (c) 9.34 (d) 10.42
  37. 37.What is the value of the digit 2 in 25.716? (a) 0.02 (b) 2 (c) 0.2 (d) 20
  38. 38.7.51 + 2.9 = ? (a) 10.41 (b) 10.51 (c) 7.8 (d) 10.31
  39. 39.Which is the smallest: 0.739, 0.85, 0.8, 0.024? (a) 0.739 (b) 0.85 (c) 0.8 (d) 0.024
  40. 40.What is the value of the digit 4 in 28.954? (a) 0.4 (b) 0.04 (c) 4 (d) 0.004

Answer key

  1. 0.1
  2. 0.4
  3. 0.86
  4. 80
  5. 0.28
  6. 9.25
  7. 1
  8. 0.44
  9. 0.61
  10. 90
  11. 10.14
  12. 13.24
  13. 0.89
  14. 11.34
  15. 0.033
  16. 0.33
  17. 11.61
  18. 0.23
  19. 0.07
  20. 0.1
  21. 14.82
  22. 0.066
  23. 13.26
  24. 0.002
  25. 0.83
  26. 0.45
  27. 6.58
  28. 8.65
  29. 0.69
  30. 0.078
  31. 11.55
  32. 7.98
  33. 0.85
  34. 0.03
  35. 10.42
  36. 10.42
  37. 20
  38. 10.41
  39. 0.024
  40. 0.004

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