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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 220 · 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 62880 =
  2. 2.Digital root of 23210 =
  3. 3.Digital root of 58 × 61 =
  4. 4.Digital root of 67 × 87 =
  5. 5.Digital root of 17 × 93 =
  6. 6.Digital root of 15504 =
  7. 7.Digital root of 80134 =
  8. 8.Digital root of 32 × 32 =
  9. 9.Digital root of 22 × 47 =
  10. 10.Digital root of 99782 =
  11. 11.Digital root of 88127 =
  12. 12.Digital root of 32136 =
  13. 13.Digital root of 74 × 90 =
  14. 14.Digital root of 72683 =
  15. 15.Digital root of 15 × 22 =
  16. 16.Digital root of 41 × 59 =
  17. 17.Digital root of 75909 =
  18. 18.Digital root of 60210 =
  19. 19.Digital root of 54486 =
  20. 20.Digital root of 67 × 99 =
  21. 21.Digital root of 11157 =
  22. 22.Digital root of 20950 =
  23. 23.Digital root of 14 × 50 =
  24. 24.Digital root of 17424 =
  25. 25.Digital root of 10100 =
  26. 26.Digital root of 42 × 70 =
  27. 27.Digital root of 37 × 65 =
  28. 28.Digital root of 1111 =
  29. 29.Digital root of 30 × 34 =
  30. 30.Digital root of 95489 =
  31. 31.Digital root of 84 × 83 =
  32. 32.Digital root of 65060 =
  33. 33.Digital root of 26945 =
  34. 34.Digital root of 29 × 66 =
  35. 35.Digital root of 46 × 84 =
  36. 36.Digital root of 26924 =
  37. 37.Digital root of 85213 =
  38. 38.Digital root of 70 × 30 =
  39. 39.Digital root of 59 × 33 =
  40. 40.Digital root of 1334 =

Answer key

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

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