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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 43 · 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 13237 =
  2. 2.Digital root of 92 × 22 =
  3. 3.Digital root of 11108 =
  4. 4.Digital root of 69386 =
  5. 5.Digital root of 69 × 64 =
  6. 6.Digital root of 61 × 15 =
  7. 7.Digital root of 34 × 75 =
  8. 8.Digital root of 21449 =
  9. 9.Digital root of 2809 =
  10. 10.Digital root of 92730 =
  11. 11.Digital root of 60402 =
  12. 12.Digital root of 82373 =
  13. 13.Digital root of 11575 =
  14. 14.Digital root of 24 × 57 =
  15. 15.Digital root of 6423 =
  16. 16.Digital root of 99 × 44 =
  17. 17.Digital root of 93 × 23 =
  18. 18.Digital root of 31 × 80 =
  19. 19.Digital root of 20 × 44 =
  20. 20.Digital root of 3585 =
  21. 21.Digital root of 51 × 42 =
  22. 22.Digital root of 91 × 74 =
  23. 23.Digital root of 44640 =
  24. 24.Digital root of 43765 =
  25. 25.Digital root of 86507 =
  26. 26.Digital root of 76 × 61 =
  27. 27.Digital root of 5586 =
  28. 28.Digital root of 24332 =
  29. 29.Digital root of 43845 =
  30. 30.Digital root of 7011 =
  31. 31.Digital root of 45 × 72 =
  32. 32.Digital root of 37100 =
  33. 33.Digital root of 37176 =
  34. 34.Digital root of 88616 =
  35. 35.Digital root of 30 × 19 =
  36. 36.Digital root of 60 × 20 =
  37. 37.Digital root of 8465 =
  38. 38.Digital root of 33 × 56 =
  39. 39.Digital root of 455 =
  40. 40.Digital root of 36337 =

Answer key

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

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