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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 770 · 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 44255 =
  2. 2.Digital root of 61370 =
  3. 3.Digital root of 44 × 48 =
  4. 4.Digital root of 72959 =
  5. 5.Digital root of 53465 =
  6. 6.Digital root of 83011 =
  7. 7.Digital root of 72169 =
  8. 8.Digital root of 44424 =
  9. 9.Digital root of 31913 =
  10. 10.Digital root of 13639 =
  11. 11.Digital root of 10595 =
  12. 12.Digital root of 29 × 21 =
  13. 13.Digital root of 85 × 30 =
  14. 14.Digital root of 95 × 39 =
  15. 15.Digital root of 35 × 86 =
  16. 16.Digital root of 70382 =
  17. 17.Digital root of 18370 =
  18. 18.Digital root of 36330 =
  19. 19.Digital root of 80827 =
  20. 20.Digital root of 15260 =
  21. 21.Digital root of 21114 =
  22. 22.Digital root of 72246 =
  23. 23.Digital root of 54570 =
  24. 24.Digital root of 12491 =
  25. 25.Digital root of 20201 =
  26. 26.Digital root of 17442 =
  27. 27.Digital root of 26437 =
  28. 28.Digital root of 71 × 53 =
  29. 29.Digital root of 99814 =
  30. 30.Digital root of 50335 =
  31. 31.Digital root of 39 × 54 =
  32. 32.Digital root of 52927 =
  33. 33.Digital root of 44 × 35 =
  34. 34.Digital root of 14220 =
  35. 35.Digital root of 18 × 19 =
  36. 36.Digital root of 72979 =
  37. 37.Digital root of 75 × 20 =
  38. 38.Digital root of 90685 =
  39. 39.Digital root of 14 × 41 =
  40. 40.Digital root of 12636 =

Answer key

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

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