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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 172 · 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 94019 =
  2. 2.Digital root of 34708 =
  3. 3.Digital root of 42 × 87 =
  4. 4.Digital root of 86434 =
  5. 5.Digital root of 73633 =
  6. 6.Digital root of 58213 =
  7. 7.Digital root of 64 × 29 =
  8. 8.Digital root of 26995 =
  9. 9.Digital root of 35 × 62 =
  10. 10.Digital root of 25 × 63 =
  11. 11.Digital root of 70 × 30 =
  12. 12.Digital root of 47828 =
  13. 13.Digital root of 36 × 48 =
  14. 14.Digital root of 73362 =
  15. 15.Digital root of 17392 =
  16. 16.Digital root of 78 × 64 =
  17. 17.Digital root of 42355 =
  18. 18.Digital root of 60 × 23 =
  19. 19.Digital root of 99060 =
  20. 20.Digital root of 22651 =
  21. 21.Digital root of 86324 =
  22. 22.Digital root of 51313 =
  23. 23.Digital root of 39872 =
  24. 24.Digital root of 96261 =
  25. 25.Digital root of 36 × 36 =
  26. 26.Digital root of 86 × 63 =
  27. 27.Digital root of 35 × 50 =
  28. 28.Digital root of 76 × 62 =
  29. 29.Digital root of 27888 =
  30. 30.Digital root of 29078 =
  31. 31.Digital root of 84 × 66 =
  32. 32.Digital root of 93 × 20 =
  33. 33.Digital root of 7493 =
  34. 34.Digital root of 34 × 98 =
  35. 35.Digital root of 40 × 18 =
  36. 36.Digital root of 30 × 77 =
  37. 37.Digital root of 83795 =
  38. 38.Digital root of 98516 =
  39. 39.Digital root of 80 × 62 =
  40. 40.Digital root of 53 × 89 =

Answer key

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

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