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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 683 · 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 84601 =
  2. 2.Digital root of 70 × 26 =
  3. 3.Digital root of 64658 =
  4. 4.Digital root of 59029 =
  5. 5.Digital root of 98 × 41 =
  6. 6.Digital root of 21593 =
  7. 7.Digital root of 97738 =
  8. 8.Digital root of 85970 =
  9. 9.Digital root of 13 × 89 =
  10. 10.Digital root of 15 × 43 =
  11. 11.Digital root of 93517 =
  12. 12.Digital root of 13 × 15 =
  13. 13.Digital root of 16 × 27 =
  14. 14.Digital root of 62 × 60 =
  15. 15.Digital root of 68714 =
  16. 16.Digital root of 51847 =
  17. 17.Digital root of 95 × 22 =
  18. 18.Digital root of 29204 =
  19. 19.Digital root of 67 × 34 =
  20. 20.Digital root of 37157 =
  21. 21.Digital root of 99 × 55 =
  22. 22.Digital root of 68594 =
  23. 23.Digital root of 72 × 83 =
  24. 24.Digital root of 38949 =
  25. 25.Digital root of 87816 =
  26. 26.Digital root of 62 × 91 =
  27. 27.Digital root of 82471 =
  28. 28.Digital root of 47506 =
  29. 29.Digital root of 68 × 25 =
  30. 30.Digital root of 93 × 58 =
  31. 31.Digital root of 23 × 81 =
  32. 32.Digital root of 82579 =
  33. 33.Digital root of 45 × 35 =
  34. 34.Digital root of 87 × 32 =
  35. 35.Digital root of 48 × 65 =
  36. 36.Digital root of 61422 =
  37. 37.Digital root of 20 × 35 =
  38. 38.Digital root of 78 × 53 =
  39. 39.Digital root of 29 × 19 =
  40. 40.Digital root of 18344 =

Answer key

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

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