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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 993 · 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 44 × 74 =
  2. 2.Digital root of 97535 =
  3. 3.Digital root of 9060 =
  4. 4.Digital root of 65 × 75 =
  5. 5.Digital root of 19744 =
  6. 6.Digital root of 64960 =
  7. 7.Digital root of 78 × 31 =
  8. 8.Digital root of 84 × 66 =
  9. 9.Digital root of 32 × 77 =
  10. 10.Digital root of 18 × 76 =
  11. 11.Digital root of 73 × 99 =
  12. 12.Digital root of 30 × 23 =
  13. 13.Digital root of 69 × 53 =
  14. 14.Digital root of 96 × 88 =
  15. 15.Digital root of 10422 =
  16. 16.Digital root of 22 × 84 =
  17. 17.Digital root of 61 × 65 =
  18. 18.Digital root of 10968 =
  19. 19.Digital root of 39489 =
  20. 20.Digital root of 1554 =
  21. 21.Digital root of 12 × 37 =
  22. 22.Digital root of 94795 =
  23. 23.Digital root of 37 × 77 =
  24. 24.Digital root of 67 × 14 =
  25. 25.Digital root of 21460 =
  26. 26.Digital root of 69340 =
  27. 27.Digital root of 14713 =
  28. 28.Digital root of 19 × 68 =
  29. 29.Digital root of 94139 =
  30. 30.Digital root of 23207 =
  31. 31.Digital root of 6733 =
  32. 32.Digital root of 19 × 17 =
  33. 33.Digital root of 13544 =
  34. 34.Digital root of 30 × 52 =
  35. 35.Digital root of 28212 =
  36. 36.Digital root of 50516 =
  37. 37.Digital root of 46411 =
  38. 38.Digital root of 5514 =
  39. 39.Digital root of 32 × 44 =
  40. 40.Digital root of 88037 =

Answer key

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

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