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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 891 · 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 40582 =
  2. 2.Digital root of 93710 =
  3. 3.Digital root of 86908 =
  4. 4.Digital root of 94523 =
  5. 5.Digital root of 88569 =
  6. 6.Digital root of 9593 =
  7. 7.Digital root of 84 × 52 =
  8. 8.Digital root of 15 × 76 =
  9. 9.Digital root of 39 × 15 =
  10. 10.Digital root of 44 × 98 =
  11. 11.Digital root of 96 × 55 =
  12. 12.Digital root of 33402 =
  13. 13.Digital root of 58822 =
  14. 14.Digital root of 60596 =
  15. 15.Digital root of 60941 =
  16. 16.Digital root of 44 × 30 =
  17. 17.Digital root of 73 × 99 =
  18. 18.Digital root of 96 × 21 =
  19. 19.Digital root of 26 × 81 =
  20. 20.Digital root of 56 × 72 =
  21. 21.Digital root of 43 × 74 =
  22. 22.Digital root of 82360 =
  23. 23.Digital root of 14 × 15 =
  24. 24.Digital root of 36 × 71 =
  25. 25.Digital root of 37125 =
  26. 26.Digital root of 13479 =
  27. 27.Digital root of 11309 =
  28. 28.Digital root of 3878 =
  29. 29.Digital root of 51947 =
  30. 30.Digital root of 51843 =
  31. 31.Digital root of 68117 =
  32. 32.Digital root of 10045 =
  33. 33.Digital root of 18462 =
  34. 34.Digital root of 86339 =
  35. 35.Digital root of 50 × 99 =
  36. 36.Digital root of 63 × 36 =
  37. 37.Digital root of 64857 =
  38. 38.Digital root of 59568 =
  39. 39.Digital root of 84 × 61 =
  40. 40.Digital root of 36496 =

Answer key

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

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