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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 961 · 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 69 × 73 =
  2. 2.Digital root of 51016 =
  3. 3.Digital root of 67815 =
  4. 4.Digital root of 83296 =
  5. 5.Digital root of 42010 =
  6. 6.Digital root of 52517 =
  7. 7.Digital root of 44 × 49 =
  8. 8.Digital root of 84051 =
  9. 9.Digital root of 95 × 40 =
  10. 10.Digital root of 10683 =
  11. 11.Digital root of 56 × 62 =
  12. 12.Digital root of 76481 =
  13. 13.Digital root of 60819 =
  14. 14.Digital root of 50 × 34 =
  15. 15.Digital root of 95 × 36 =
  16. 16.Digital root of 26479 =
  17. 17.Digital root of 13227 =
  18. 18.Digital root of 24348 =
  19. 19.Digital root of 55 × 16 =
  20. 20.Digital root of 62 × 16 =
  21. 21.Digital root of 72331 =
  22. 22.Digital root of 22399 =
  23. 23.Digital root of 99 × 29 =
  24. 24.Digital root of 68 × 66 =
  25. 25.Digital root of 86692 =
  26. 26.Digital root of 24125 =
  27. 27.Digital root of 42 × 92 =
  28. 28.Digital root of 63860 =
  29. 29.Digital root of 84 × 33 =
  30. 30.Digital root of 27 × 32 =
  31. 31.Digital root of 31 × 76 =
  32. 32.Digital root of 9108 =
  33. 33.Digital root of 66467 =
  34. 34.Digital root of 36755 =
  35. 35.Digital root of 5894 =
  36. 36.Digital root of 67402 =
  37. 37.Digital root of 58 × 67 =
  38. 38.Digital root of 15 × 22 =
  39. 39.Digital root of 44685 =
  40. 40.Digital root of 18 × 44 =

Answer key

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

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