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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 882 · 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 33 × 51 =
  2. 2.Digital root of 83216 =
  3. 3.Digital root of 16 × 99 =
  4. 4.Digital root of 55 × 51 =
  5. 5.Digital root of 80 × 18 =
  6. 6.Digital root of 85252 =
  7. 7.Digital root of 31 × 14 =
  8. 8.Digital root of 24802 =
  9. 9.Digital root of 54 × 35 =
  10. 10.Digital root of 57 × 38 =
  11. 11.Digital root of 26 × 28 =
  12. 12.Digital root of 28854 =
  13. 13.Digital root of 8709 =
  14. 14.Digital root of 51 × 52 =
  15. 15.Digital root of 48 × 77 =
  16. 16.Digital root of 28322 =
  17. 17.Digital root of 32 × 97 =
  18. 18.Digital root of 75 × 59 =
  19. 19.Digital root of 92 × 28 =
  20. 20.Digital root of 92 × 50 =
  21. 21.Digital root of 8789 =
  22. 22.Digital root of 33807 =
  23. 23.Digital root of 46408 =
  24. 24.Digital root of 83 × 91 =
  25. 25.Digital root of 64120 =
  26. 26.Digital root of 63 × 41 =
  27. 27.Digital root of 20 × 59 =
  28. 28.Digital root of 16077 =
  29. 29.Digital root of 51758 =
  30. 30.Digital root of 60 × 22 =
  31. 31.Digital root of 43682 =
  32. 32.Digital root of 73499 =
  33. 33.Digital root of 17 × 28 =
  34. 34.Digital root of 97 × 90 =
  35. 35.Digital root of 69127 =
  36. 36.Digital root of 93 × 18 =
  37. 37.Digital root of 93314 =
  38. 38.Digital root of 10596 =
  39. 39.Digital root of 85903 =
  40. 40.Digital root of 58 × 34 =

Answer key

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

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