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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 303 · 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 35 × 25 =
  2. 2.Digital root of 91819 =
  3. 3.Digital root of 33 × 86 =
  4. 4.Digital root of 22 × 50 =
  5. 5.Digital root of 74 × 34 =
  6. 6.Digital root of 10638 =
  7. 7.Digital root of 13 × 36 =
  8. 8.Digital root of 25 × 35 =
  9. 9.Digital root of 92573 =
  10. 10.Digital root of 34 × 88 =
  11. 11.Digital root of 84 × 66 =
  12. 12.Digital root of 76229 =
  13. 13.Digital root of 76 × 36 =
  14. 14.Digital root of 35488 =
  15. 15.Digital root of 13 × 30 =
  16. 16.Digital root of 84731 =
  17. 17.Digital root of 84320 =
  18. 18.Digital root of 78994 =
  19. 19.Digital root of 27 × 12 =
  20. 20.Digital root of 46 × 53 =
  21. 21.Digital root of 61174 =
  22. 22.Digital root of 55871 =
  23. 23.Digital root of 95 × 54 =
  24. 24.Digital root of 15 × 31 =
  25. 25.Digital root of 33472 =
  26. 26.Digital root of 28182 =
  27. 27.Digital root of 1492 =
  28. 28.Digital root of 12126 =
  29. 29.Digital root of 30 × 12 =
  30. 30.Digital root of 72392 =
  31. 31.Digital root of 36757 =
  32. 32.Digital root of 80 × 48 =
  33. 33.Digital root of 23085 =
  34. 34.Digital root of 67655 =
  35. 35.Digital root of 16 × 97 =
  36. 36.Digital root of 26 × 74 =
  37. 37.Digital root of 72177 =
  38. 38.Digital root of 47 × 42 =
  39. 39.Digital root of 51382 =
  40. 40.Digital root of 98537 =

Answer key

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

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