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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 803 · 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 778 =
  2. 2.Digital root of 89685 =
  3. 3.Digital root of 67 × 70 =
  4. 4.Digital root of 74 × 78 =
  5. 5.Digital root of 60367 =
  6. 6.Digital root of 33 × 13 =
  7. 7.Digital root of 68617 =
  8. 8.Digital root of 32542 =
  9. 9.Digital root of 71 × 31 =
  10. 10.Digital root of 37 × 77 =
  11. 11.Digital root of 48904 =
  12. 12.Digital root of 50366 =
  13. 13.Digital root of 72 × 85 =
  14. 14.Digital root of 15639 =
  15. 15.Digital root of 40795 =
  16. 16.Digital root of 80 × 59 =
  17. 17.Digital root of 55885 =
  18. 18.Digital root of 60765 =
  19. 19.Digital root of 72 × 62 =
  20. 20.Digital root of 61403 =
  21. 21.Digital root of 46 × 53 =
  22. 22.Digital root of 32125 =
  23. 23.Digital root of 18 × 64 =
  24. 24.Digital root of 70832 =
  25. 25.Digital root of 78196 =
  26. 26.Digital root of 12 × 52 =
  27. 27.Digital root of 88202 =
  28. 28.Digital root of 21236 =
  29. 29.Digital root of 60 × 65 =
  30. 30.Digital root of 63958 =
  31. 31.Digital root of 19 × 76 =
  32. 32.Digital root of 39538 =
  33. 33.Digital root of 79074 =
  34. 34.Digital root of 18 × 49 =
  35. 35.Digital root of 20708 =
  36. 36.Digital root of 95997 =
  37. 37.Digital root of 70 × 41 =
  38. 38.Digital root of 62 × 51 =
  39. 39.Digital root of 54 × 47 =
  40. 40.Digital root of 62 × 59 =

Answer key

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

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