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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 546 · 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 63 × 86 =
  2. 2.Digital root of 91 × 83 =
  3. 3.Digital root of 33 × 63 =
  4. 4.Digital root of 31 × 96 =
  5. 5.Digital root of 75 × 52 =
  6. 6.Digital root of 4994 =
  7. 7.Digital root of 38 × 88 =
  8. 8.Digital root of 34 × 88 =
  9. 9.Digital root of 38065 =
  10. 10.Digital root of 65 × 82 =
  11. 11.Digital root of 53543 =
  12. 12.Digital root of 56571 =
  13. 13.Digital root of 69 × 63 =
  14. 14.Digital root of 12 × 17 =
  15. 15.Digital root of 91522 =
  16. 16.Digital root of 7023 =
  17. 17.Digital root of 19 × 59 =
  18. 18.Digital root of 69640 =
  19. 19.Digital root of 58399 =
  20. 20.Digital root of 62 × 89 =
  21. 21.Digital root of 1849 =
  22. 22.Digital root of 50 × 98 =
  23. 23.Digital root of 45 × 96 =
  24. 24.Digital root of 48 × 80 =
  25. 25.Digital root of 94529 =
  26. 26.Digital root of 9372 =
  27. 27.Digital root of 14109 =
  28. 28.Digital root of 5466 =
  29. 29.Digital root of 26689 =
  30. 30.Digital root of 86247 =
  31. 31.Digital root of 14 × 77 =
  32. 32.Digital root of 57933 =
  33. 33.Digital root of 62942 =
  34. 34.Digital root of 88432 =
  35. 35.Digital root of 18169 =
  36. 36.Digital root of 52691 =
  37. 37.Digital root of 76878 =
  38. 38.Digital root of 2833 =
  39. 39.Digital root of 80 × 46 =
  40. 40.Digital root of 75 × 50 =

Answer key

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

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