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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 845 · 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 37 × 51 =
  2. 2.Digital root of 72 × 96 =
  3. 3.Digital root of 19 × 52 =
  4. 4.Digital root of 25 × 20 =
  5. 5.Digital root of 60 × 20 =
  6. 6.Digital root of 94 × 23 =
  7. 7.Digital root of 11611 =
  8. 8.Digital root of 68 × 61 =
  9. 9.Digital root of 39 × 65 =
  10. 10.Digital root of 92 × 23 =
  11. 11.Digital root of 93 × 62 =
  12. 12.Digital root of 26 × 26 =
  13. 13.Digital root of 2629 =
  14. 14.Digital root of 48 × 81 =
  15. 15.Digital root of 81354 =
  16. 16.Digital root of 13 × 98 =
  17. 17.Digital root of 53801 =
  18. 18.Digital root of 14928 =
  19. 19.Digital root of 60962 =
  20. 20.Digital root of 52074 =
  21. 21.Digital root of 90 × 67 =
  22. 22.Digital root of 67505 =
  23. 23.Digital root of 95 × 34 =
  24. 24.Digital root of 31147 =
  25. 25.Digital root of 79510 =
  26. 26.Digital root of 37271 =
  27. 27.Digital root of 97461 =
  28. 28.Digital root of 74055 =
  29. 29.Digital root of 95 × 72 =
  30. 30.Digital root of 12216 =
  31. 31.Digital root of 28579 =
  32. 32.Digital root of 23777 =
  33. 33.Digital root of 73 × 26 =
  34. 34.Digital root of 2711 =
  35. 35.Digital root of 67548 =
  36. 36.Digital root of 75507 =
  37. 37.Digital root of 33640 =
  38. 38.Digital root of 55 × 74 =
  39. 39.Digital root of 72 × 25 =
  40. 40.Digital root of 85687 =

Answer key

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

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