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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 574 · 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 22058 =
  2. 2.Digital root of 34 × 16 =
  3. 3.Digital root of 96715 =
  4. 4.Digital root of 23535 =
  5. 5.Digital root of 53 × 77 =
  6. 6.Digital root of 83 × 92 =
  7. 7.Digital root of 12 × 16 =
  8. 8.Digital root of 94647 =
  9. 9.Digital root of 27 × 61 =
  10. 10.Digital root of 85214 =
  11. 11.Digital root of 67 × 76 =
  12. 12.Digital root of 84 × 52 =
  13. 13.Digital root of 83 × 70 =
  14. 14.Digital root of 98084 =
  15. 15.Digital root of 18 × 32 =
  16. 16.Digital root of 87 × 23 =
  17. 17.Digital root of 43 × 61 =
  18. 18.Digital root of 47718 =
  19. 19.Digital root of 39751 =
  20. 20.Digital root of 85628 =
  21. 21.Digital root of 25 × 75 =
  22. 22.Digital root of 13 × 24 =
  23. 23.Digital root of 95 × 89 =
  24. 24.Digital root of 93590 =
  25. 25.Digital root of 21 × 31 =
  26. 26.Digital root of 19859 =
  27. 27.Digital root of 54920 =
  28. 28.Digital root of 55 × 66 =
  29. 29.Digital root of 70905 =
  30. 30.Digital root of 33101 =
  31. 31.Digital root of 87774 =
  32. 32.Digital root of 69 × 61 =
  33. 33.Digital root of 2132 =
  34. 34.Digital root of 64 × 99 =
  35. 35.Digital root of 20 × 30 =
  36. 36.Digital root of 63077 =
  37. 37.Digital root of 61 × 95 =
  38. 38.Digital root of 78641 =
  39. 39.Digital root of 32786 =
  40. 40.Digital root of 29688 =

Answer key

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

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