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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 494 · 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 23535 =
  2. 2.Digital root of 51 × 73 =
  3. 3.Digital root of 52510 =
  4. 4.Digital root of 57390 =
  5. 5.Digital root of 11353 =
  6. 6.Digital root of 60 × 36 =
  7. 7.Digital root of 14 × 96 =
  8. 8.Digital root of 76 × 26 =
  9. 9.Digital root of 57 × 28 =
  10. 10.Digital root of 84 × 79 =
  11. 11.Digital root of 84420 =
  12. 12.Digital root of 80 × 68 =
  13. 13.Digital root of 60448 =
  14. 14.Digital root of 94 × 67 =
  15. 15.Digital root of 37 × 59 =
  16. 16.Digital root of 6644 =
  17. 17.Digital root of 35 × 33 =
  18. 18.Digital root of 35860 =
  19. 19.Digital root of 35 × 89 =
  20. 20.Digital root of 95 × 20 =
  21. 21.Digital root of 63 × 56 =
  22. 22.Digital root of 88 × 43 =
  23. 23.Digital root of 80 × 33 =
  24. 24.Digital root of 69276 =
  25. 25.Digital root of 25 × 58 =
  26. 26.Digital root of 65 × 85 =
  27. 27.Digital root of 56 × 16 =
  28. 28.Digital root of 30989 =
  29. 29.Digital root of 29326 =
  30. 30.Digital root of 21 × 64 =
  31. 31.Digital root of 80988 =
  32. 32.Digital root of 62853 =
  33. 33.Digital root of 3158 =
  34. 34.Digital root of 14 × 54 =
  35. 35.Digital root of 48696 =
  36. 36.Digital root of 72961 =
  37. 37.Digital root of 91 × 70 =
  38. 38.Digital root of 23475 =
  39. 39.Digital root of 42 × 15 =
  40. 40.Digital root of 26 × 47 =

Answer key

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

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