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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 464 · 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 55 × 56 =
  2. 2.Digital root of 58673 =
  3. 3.Digital root of 56093 =
  4. 4.Digital root of 81 × 78 =
  5. 5.Digital root of 77370 =
  6. 6.Digital root of 20927 =
  7. 7.Digital root of 23 × 42 =
  8. 8.Digital root of 92 × 52 =
  9. 9.Digital root of 17 × 98 =
  10. 10.Digital root of 26 × 84 =
  11. 11.Digital root of 24559 =
  12. 12.Digital root of 24 × 30 =
  13. 13.Digital root of 467 =
  14. 14.Digital root of 22092 =
  15. 15.Digital root of 69 × 50 =
  16. 16.Digital root of 88 × 69 =
  17. 17.Digital root of 34375 =
  18. 18.Digital root of 39 × 99 =
  19. 19.Digital root of 15207 =
  20. 20.Digital root of 35299 =
  21. 21.Digital root of 23 × 61 =
  22. 22.Digital root of 56794 =
  23. 23.Digital root of 26 × 87 =
  24. 24.Digital root of 879 =
  25. 25.Digital root of 67748 =
  26. 26.Digital root of 46961 =
  27. 27.Digital root of 48783 =
  28. 28.Digital root of 38 × 62 =
  29. 29.Digital root of 89681 =
  30. 30.Digital root of 20 × 48 =
  31. 31.Digital root of 81289 =
  32. 32.Digital root of 19702 =
  33. 33.Digital root of 82955 =
  34. 34.Digital root of 76 × 41 =
  35. 35.Digital root of 12 × 24 =
  36. 36.Digital root of 64574 =
  37. 37.Digital root of 13 × 36 =
  38. 38.Digital root of 10225 =
  39. 39.Digital root of 7218 =
  40. 40.Digital root of 85701 =

Answer key

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

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