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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 130 · 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 76798 =
  2. 2.Digital root of 93431 =
  3. 3.Digital root of 71 × 26 =
  4. 4.Digital root of 82 × 36 =
  5. 5.Digital root of 32 × 46 =
  6. 6.Digital root of 27 × 15 =
  7. 7.Digital root of 46784 =
  8. 8.Digital root of 77765 =
  9. 9.Digital root of 66451 =
  10. 10.Digital root of 87 × 78 =
  11. 11.Digital root of 62260 =
  12. 12.Digital root of 44 × 15 =
  13. 13.Digital root of 97 × 18 =
  14. 14.Digital root of 97 × 17 =
  15. 15.Digital root of 37 × 76 =
  16. 16.Digital root of 81472 =
  17. 17.Digital root of 35 × 70 =
  18. 18.Digital root of 44987 =
  19. 19.Digital root of 88726 =
  20. 20.Digital root of 60716 =
  21. 21.Digital root of 86 × 27 =
  22. 22.Digital root of 56261 =
  23. 23.Digital root of 41905 =
  24. 24.Digital root of 96052 =
  25. 25.Digital root of 92 × 54 =
  26. 26.Digital root of 72 × 24 =
  27. 27.Digital root of 1458 =
  28. 28.Digital root of 83250 =
  29. 29.Digital root of 20784 =
  30. 30.Digital root of 53193 =
  31. 31.Digital root of 51373 =
  32. 32.Digital root of 46 × 70 =
  33. 33.Digital root of 88 × 90 =
  34. 34.Digital root of 94643 =
  35. 35.Digital root of 72 × 50 =
  36. 36.Digital root of 30 × 98 =
  37. 37.Digital root of 59802 =
  38. 38.Digital root of 80974 =
  39. 39.Digital root of 51 × 41 =
  40. 40.Digital root of 25525 =

Answer key

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

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