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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 853 · 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 76 × 32 =
  2. 2.Digital root of 35065 =
  3. 3.Digital root of 98911 =
  4. 4.Digital root of 15 × 12 =
  5. 5.Digital root of 33 × 66 =
  6. 6.Digital root of 24284 =
  7. 7.Digital root of 50 × 54 =
  8. 8.Digital root of 27 × 89 =
  9. 9.Digital root of 18935 =
  10. 10.Digital root of 94 × 61 =
  11. 11.Digital root of 48037 =
  12. 12.Digital root of 5312 =
  13. 13.Digital root of 43 × 84 =
  14. 14.Digital root of 23469 =
  15. 15.Digital root of 58361 =
  16. 16.Digital root of 47649 =
  17. 17.Digital root of 43 × 57 =
  18. 18.Digital root of 79 × 17 =
  19. 19.Digital root of 47325 =
  20. 20.Digital root of 74 × 16 =
  21. 21.Digital root of 28 × 64 =
  22. 22.Digital root of 10035 =
  23. 23.Digital root of 43816 =
  24. 24.Digital root of 92208 =
  25. 25.Digital root of 39 × 37 =
  26. 26.Digital root of 1745 =
  27. 27.Digital root of 99 × 91 =
  28. 28.Digital root of 26873 =
  29. 29.Digital root of 58 × 83 =
  30. 30.Digital root of 43 × 63 =
  31. 31.Digital root of 59661 =
  32. 32.Digital root of 35 × 45 =
  33. 33.Digital root of 52495 =
  34. 34.Digital root of 77 × 22 =
  35. 35.Digital root of 85721 =
  36. 36.Digital root of 28 × 44 =
  37. 37.Digital root of 50697 =
  38. 38.Digital root of 50 × 83 =
  39. 39.Digital root of 47 × 23 =
  40. 40.Digital root of 96 × 99 =

Answer key

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

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