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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 333 · 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 3286 =
  2. 2.Digital root of 40682 =
  3. 3.Digital root of 66 × 86 =
  4. 4.Digital root of 42 × 39 =
  5. 5.Digital root of 80 × 76 =
  6. 6.Digital root of 10486 =
  7. 7.Digital root of 25456 =
  8. 8.Digital root of 53 × 26 =
  9. 9.Digital root of 85 × 75 =
  10. 10.Digital root of 44 × 19 =
  11. 11.Digital root of 35 × 77 =
  12. 12.Digital root of 71 × 67 =
  13. 13.Digital root of 94464 =
  14. 14.Digital root of 42 × 18 =
  15. 15.Digital root of 25822 =
  16. 16.Digital root of 94174 =
  17. 17.Digital root of 92803 =
  18. 18.Digital root of 44590 =
  19. 19.Digital root of 25040 =
  20. 20.Digital root of 43 × 75 =
  21. 21.Digital root of 31137 =
  22. 22.Digital root of 96 × 84 =
  23. 23.Digital root of 27531 =
  24. 24.Digital root of 65 × 28 =
  25. 25.Digital root of 64050 =
  26. 26.Digital root of 63947 =
  27. 27.Digital root of 52671 =
  28. 28.Digital root of 43 × 43 =
  29. 29.Digital root of 15924 =
  30. 30.Digital root of 46840 =
  31. 31.Digital root of 27853 =
  32. 32.Digital root of 50 × 75 =
  33. 33.Digital root of 9810 =
  34. 34.Digital root of 77 × 23 =
  35. 35.Digital root of 85778 =
  36. 36.Digital root of 88792 =
  37. 37.Digital root of 94 × 46 =
  38. 38.Digital root of 3186 =
  39. 39.Digital root of 46244 =
  40. 40.Digital root of 74 × 87 =

Answer key

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

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