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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 926 · 40 sums
TalentJR

The trick (Gunita Samuccayah): Add the digits of a number; keep adding until one digit is left (a total of 9 stays 9). For a product, multiply the digital roots of the two numbers and take the digital root of that. If your answer’s digital root is different, the answer is wrong.

NameDateTime takenScore ___ / 40
  1. 1.Digital root of 35476 =
  2. 2.Digital root of 62 × 63 =
  3. 3.Digital root of 30734 =
  4. 4.Digital root of 68967 =
  5. 5.Digital root of 34265 =
  6. 6.Digital root of 44 × 93 =
  7. 7.Digital root of 33 × 17 =
  8. 8.Digital root of 86057 =
  9. 9.Digital root of 56789 =
  10. 10.Digital root of 85867 =
  11. 11.Digital root of 23841 =
  12. 12.Digital root of 78 × 54 =
  13. 13.Digital root of 90 × 98 =
  14. 14.Digital root of 49 × 87 =
  15. 15.Digital root of 57667 =
  16. 16.Digital root of 71739 =
  17. 17.Digital root of 9050 =
  18. 18.Digital root of 87032 =
  19. 19.Digital root of 25775 =
  20. 20.Digital root of 80 × 96 =
  21. 21.Digital root of 75800 =
  22. 22.Digital root of 74599 =
  23. 23.Digital root of 2812 =
  24. 24.Digital root of 68310 =
  25. 25.Digital root of 3909 =
  26. 26.Digital root of 89498 =
  27. 27.Digital root of 81705 =
  28. 28.Digital root of 32951 =
  29. 29.Digital root of 91552 =
  30. 30.Digital root of 54 × 67 =
  31. 31.Digital root of 62 × 12 =
  32. 32.Digital root of 32 × 27 =
  33. 33.Digital root of 88209 =
  34. 34.Digital root of 16 × 47 =
  35. 35.Digital root of 97 × 47 =
  36. 36.Digital root of 19 × 67 =
  37. 37.Digital root of 77744 =
  38. 38.Digital root of 45 × 51 =
  39. 39.Digital root of 78 × 14 =
  40. 40.Digital root of 84 × 67 =

Answer key

  1. 7
  2. 9
  3. 8
  4. 9
  5. 2
  6. 6
  7. 3
  8. 8
  9. 8
  10. 7
  11. 9
  12. 9
  13. 9
  14. 6
  15. 4
  16. 9
  17. 5
  18. 2
  19. 8
  20. 3
  21. 2
  22. 7
  23. 4
  24. 9
  25. 3
  26. 2
  27. 3
  28. 2
  29. 4
  30. 9
  31. 6
  32. 9
  33. 9
  34. 5
  35. 5
  36. 4
  37. 2
  38. 9
  39. 3
  40. 3

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