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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 743 · 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 22 × 13 =
  2. 2.Digital root of 94609 =
  3. 3.Digital root of 25816 =
  4. 4.Digital root of 13 × 38 =
  5. 5.Digital root of 61 × 59 =
  6. 6.Digital root of 10999 =
  7. 7.Digital root of 15338 =
  8. 8.Digital root of 60749 =
  9. 9.Digital root of 14841 =
  10. 10.Digital root of 67 × 85 =
  11. 11.Digital root of 65 × 64 =
  12. 12.Digital root of 18 × 92 =
  13. 13.Digital root of 36249 =
  14. 14.Digital root of 58 × 48 =
  15. 15.Digital root of 77152 =
  16. 16.Digital root of 35 × 62 =
  17. 17.Digital root of 49419 =
  18. 18.Digital root of 72144 =
  19. 19.Digital root of 40492 =
  20. 20.Digital root of 42 × 36 =
  21. 21.Digital root of 63231 =
  22. 22.Digital root of 93278 =
  23. 23.Digital root of 82546 =
  24. 24.Digital root of 44 × 27 =
  25. 25.Digital root of 60 × 55 =
  26. 26.Digital root of 35978 =
  27. 27.Digital root of 43338 =
  28. 28.Digital root of 14 × 19 =
  29. 29.Digital root of 11812 =
  30. 30.Digital root of 95132 =
  31. 31.Digital root of 23460 =
  32. 32.Digital root of 73 × 30 =
  33. 33.Digital root of 23042 =
  34. 34.Digital root of 9118 =
  35. 35.Digital root of 27944 =
  36. 36.Digital root of 20775 =
  37. 37.Digital root of 25490 =
  38. 38.Digital root of 21542 =
  39. 39.Digital root of 26144 =
  40. 40.Digital root of 83 × 82 =

Answer key

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

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