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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 123 · 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 95907 =
  2. 2.Digital root of 34 × 84 =
  3. 3.Digital root of 84989 =
  4. 4.Digital root of 89 × 17 =
  5. 5.Digital root of 34101 =
  6. 6.Digital root of 79246 =
  7. 7.Digital root of 71051 =
  8. 8.Digital root of 9301 =
  9. 9.Digital root of 15545 =
  10. 10.Digital root of 82965 =
  11. 11.Digital root of 24755 =
  12. 12.Digital root of 66020 =
  13. 13.Digital root of 17 × 32 =
  14. 14.Digital root of 14095 =
  15. 15.Digital root of 73 × 21 =
  16. 16.Digital root of 53602 =
  17. 17.Digital root of 7671 =
  18. 18.Digital root of 70425 =
  19. 19.Digital root of 17220 =
  20. 20.Digital root of 80 × 99 =
  21. 21.Digital root of 23 × 40 =
  22. 22.Digital root of 38 × 68 =
  23. 23.Digital root of 93998 =
  24. 24.Digital root of 94358 =
  25. 25.Digital root of 30 × 83 =
  26. 26.Digital root of 66 × 34 =
  27. 27.Digital root of 37 × 47 =
  28. 28.Digital root of 12 × 34 =
  29. 29.Digital root of 27 × 29 =
  30. 30.Digital root of 70 × 95 =
  31. 31.Digital root of 9469 =
  32. 32.Digital root of 30 × 38 =
  33. 33.Digital root of 92 × 66 =
  34. 34.Digital root of 79211 =
  35. 35.Digital root of 91 × 70 =
  36. 36.Digital root of 11435 =
  37. 37.Digital root of 33294 =
  38. 38.Digital root of 84116 =
  39. 39.Digital root of 20858 =
  40. 40.Digital root of 82 × 81 =

Answer key

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

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