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Decimals Worksheet for Maths Olympiad Class 5

Maths Olympiad topic 10: Decimals and place value · Set 341 · 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 6 in 84.567? (a) 0.006 (b) 0.6 (c) 6 (d) 0.06
  2. 2.What is the value of the digit 5 in 71.582? (a) 5 (b) 0.5 (c) 0.05 (d) 0.005
  3. 3.What is the value of the digit 3 in 49.153? (a) 0.003 (b) 3 (c) 0.3 (d) 0.03
  4. 4.What is the value of the digit 5 in 35.429? (a) 0.05 (b) 50 (c) 0.5 (d) 5
  5. 5.2.91 + 9.3 = ? (a) 3.84 (b) 12.21 (c) 12.31 (d) 12.11
  6. 6.What is the value of the digit 8 in 98.316? (a) 8 (b) 0.08 (c) 80 (d) 0.8
  7. 7.What is the value of the digit 7 in 85.127? (a) 0.07 (b) 0.7 (c) 7 (d) 0.007
  8. 8.What is the value of the digit 7 in 79.564? (a) 0.7 (b) 7 (c) 0.07 (d) 70
  9. 9.What is the value of the digit 8 in 96.482? (a) 0.8 (b) 8 (c) 0.008 (d) 0.08
  10. 10.What is the value of the digit 7 in 25.837? (a) 0.007 (b) 0.07 (c) 0.7 (d) 7
  11. 11.1.83 + 5.6 = ? (a) 2.39 (b) 7.43 (c) 7.53 (d) 7.33
  12. 12.4.22 + 1.7 = ? (a) 6.02 (b) 5.82 (c) 4.39 (d) 5.92
  13. 13.1.21 + 8.6 = ? (a) 9.71 (b) 9.91 (c) 2.07 (d) 9.81
  14. 14.7.36 + 9.9 = ? (a) 17.26 (b) 8.35 (c) 17.36 (d) 17.16
  15. 15.Which is the smallest: 0.028, 0.173, 0.2, 0.26? (a) 0.028 (b) 0.173 (c) 0.2 (d) 0.26
  16. 16.Which is the smallest: 0.85, 0.788, 0.8, 0.015? (a) 0.85 (b) 0.788 (c) 0.8 (d) 0.015
  17. 17.What is the value of the digit 8 in 19.856? (a) 8 (b) 0.8 (c) 0.008 (d) 0.08
  18. 18.What is the value of the digit 7 in 57.436? (a) 0.07 (b) 0.7 (c) 7 (d) 70
  19. 19.Which is the smallest: 0.5, 0.032, 0.485, 0.56? (a) 0.5 (b) 0.032 (c) 0.485 (d) 0.56
  20. 20.What is the value of the digit 7 in 79.824? (a) 7 (b) 70 (c) 0.7 (d) 0.07
  21. 21.4.19 + 8.7 = ? (a) 12.79 (b) 12.89 (c) 12.99 (d) 5.06
  22. 22.Which is the greatest: 0.078, 0.51, 0.491, 0.5? (a) 0.078 (b) 0.51 (c) 0.491 (d) 0.5
  23. 23.6.92 + 6.8 = ? (a) 13.72 (b) 13.62 (c) 7.6 (d) 13.82
  24. 24.Which is the smallest: 0.547, 0.6, 0.67, 0.051? (a) 0.547 (b) 0.6 (c) 0.67 (d) 0.051
  25. 25.Which is the smallest: 0.53, 0.435, 0.057, 0.5? (a) 0.53 (b) 0.435 (c) 0.057 (d) 0.5
  26. 26.What is the value of the digit 3 in 39.154? (a) 0.3 (b) 0.03 (c) 3 (d) 30
  27. 27.5.78 + 4.9 = ? (a) 10.68 (b) 10.78 (c) 10.58 (d) 6.27
  28. 28.Which is the greatest: 0.032, 0.75, 0.7, 0.684? (a) 0.032 (b) 0.75 (c) 0.7 (d) 0.684
  29. 29.What is the value of the digit 8 in 48.521? (a) 0.08 (b) 80 (c) 8 (d) 0.8
  30. 30.Which is the smallest: 0.38, 0.3, 0.092, 0.295? (a) 0.38 (b) 0.3 (c) 0.092 (d) 0.295
  31. 31.Which is the greatest: 0.239, 0.3, 0.39, 0.012? (a) 0.239 (b) 0.3 (c) 0.39 (d) 0.012
  32. 32.3.38 + 5.7 = ? (a) 3.95 (b) 9.18 (c) 8.98 (d) 9.08
  33. 33.Which is the smallest: 0.785, 0.89, 0.044, 0.8? (a) 0.785 (b) 0.89 (c) 0.044 (d) 0.8
  34. 34.What is the value of the digit 7 in 14.287? (a) 0.07 (b) 0.7 (c) 7 (d) 0.007
  35. 35.9.13 + 4.5 = ? (a) 13.73 (b) 13.53 (c) 13.63 (d) 9.58
  36. 36.What is the value of the digit 6 in 53.648? (a) 0.006 (b) 6 (c) 0.06 (d) 0.6
  37. 37.What is the value of the digit 7 in 39.726? (a) 7 (b) 0.007 (c) 0.07 (d) 0.7
  38. 38.What is the value of the digit 2 in 21.795? (a) 0.02 (b) 2 (c) 20 (d) 0.2
  39. 39.5.77 + 4.9 = ? (a) 10.57 (b) 10.77 (c) 6.26 (d) 10.67
  40. 40.Which is the greatest: 0.368, 0.4, 0.037, 0.49? (a) 0.368 (b) 0.4 (c) 0.037 (d) 0.49

Answer key

  1. 0.06
  2. 0.5
  3. 0.003
  4. 5
  5. 12.21
  6. 8
  7. 0.007
  8. 70
  9. 0.08
  10. 0.007
  11. 7.43
  12. 5.92
  13. 9.81
  14. 17.26
  15. 0.028
  16. 0.015
  17. 0.8
  18. 7
  19. 0.032
  20. 70
  21. 12.89
  22. 0.51
  23. 13.72
  24. 0.051
  25. 0.057
  26. 30
  27. 10.68
  28. 0.75
  29. 8
  30. 0.092
  31. 0.39
  32. 9.08
  33. 0.044
  34. 0.007
  35. 13.63
  36. 0.6
  37. 0.7
  38. 20
  39. 10.67
  40. 0.49

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