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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 163 · 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 53732 =
  2. 2.Digital root of 44 × 98 =
  3. 3.Digital root of 77058 =
  4. 4.Digital root of 78348 =
  5. 5.Digital root of 35 × 36 =
  6. 6.Digital root of 72 × 20 =
  7. 7.Digital root of 61 × 57 =
  8. 8.Digital root of 72525 =
  9. 9.Digital root of 79414 =
  10. 10.Digital root of 91 × 49 =
  11. 11.Digital root of 15091 =
  12. 12.Digital root of 47407 =
  13. 13.Digital root of 3655 =
  14. 14.Digital root of 74 × 22 =
  15. 15.Digital root of 57 × 82 =
  16. 16.Digital root of 99375 =
  17. 17.Digital root of 67 × 47 =
  18. 18.Digital root of 57 × 33 =
  19. 19.Digital root of 68 × 93 =
  20. 20.Digital root of 72 × 49 =
  21. 21.Digital root of 27 × 19 =
  22. 22.Digital root of 76345 =
  23. 23.Digital root of 6516 =
  24. 24.Digital root of 43 × 32 =
  25. 25.Digital root of 66260 =
  26. 26.Digital root of 68188 =
  27. 27.Digital root of 58271 =
  28. 28.Digital root of 77854 =
  29. 29.Digital root of 55 × 35 =
  30. 30.Digital root of 13 × 57 =
  31. 31.Digital root of 98216 =
  32. 32.Digital root of 44 × 41 =
  33. 33.Digital root of 92450 =
  34. 34.Digital root of 93544 =
  35. 35.Digital root of 98288 =
  36. 36.Digital root of 77 × 83 =
  37. 37.Digital root of 91 × 54 =
  38. 38.Digital root of 60015 =
  39. 39.Digital root of 95519 =
  40. 40.Digital root of 81 × 44 =

Answer key

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

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