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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 726 · 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 79471 =
  2. 2.Digital root of 25 × 31 =
  3. 3.Digital root of 41581 =
  4. 4.Digital root of 37 × 59 =
  5. 5.Digital root of 50133 =
  6. 6.Digital root of 1954 =
  7. 7.Digital root of 52 × 42 =
  8. 8.Digital root of 26 × 60 =
  9. 9.Digital root of 67 × 32 =
  10. 10.Digital root of 37801 =
  11. 11.Digital root of 55103 =
  12. 12.Digital root of 41 × 20 =
  13. 13.Digital root of 28632 =
  14. 14.Digital root of 15 × 48 =
  15. 15.Digital root of 59304 =
  16. 16.Digital root of 24 × 65 =
  17. 17.Digital root of 53061 =
  18. 18.Digital root of 82734 =
  19. 19.Digital root of 49 × 42 =
  20. 20.Digital root of 84 × 95 =
  21. 21.Digital root of 45554 =
  22. 22.Digital root of 53 × 72 =
  23. 23.Digital root of 96860 =
  24. 24.Digital root of 69 × 38 =
  25. 25.Digital root of 94122 =
  26. 26.Digital root of 381 =
  27. 27.Digital root of 46113 =
  28. 28.Digital root of 37760 =
  29. 29.Digital root of 64 × 88 =
  30. 30.Digital root of 95586 =
  31. 31.Digital root of 36 × 67 =
  32. 32.Digital root of 24784 =
  33. 33.Digital root of 96285 =
  34. 34.Digital root of 55108 =
  35. 35.Digital root of 66 × 85 =
  36. 36.Digital root of 18 × 19 =
  37. 37.Digital root of 63 × 88 =
  38. 38.Digital root of 81745 =
  39. 39.Digital root of 15561 =
  40. 40.Digital root of 44727 =

Answer key

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

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