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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 703 · 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 47 × 16 =
  2. 2.Digital root of 18 × 90 =
  3. 3.Digital root of 44087 =
  4. 4.Digital root of 48 × 23 =
  5. 5.Digital root of 96 × 48 =
  6. 6.Digital root of 94619 =
  7. 7.Digital root of 29 × 86 =
  8. 8.Digital root of 76163 =
  9. 9.Digital root of 47968 =
  10. 10.Digital root of 23758 =
  11. 11.Digital root of 61 × 46 =
  12. 12.Digital root of 63 × 93 =
  13. 13.Digital root of 50282 =
  14. 14.Digital root of 51933 =
  15. 15.Digital root of 95 × 33 =
  16. 16.Digital root of 87667 =
  17. 17.Digital root of 7523 =
  18. 18.Digital root of 13074 =
  19. 19.Digital root of 96 × 75 =
  20. 20.Digital root of 63 × 80 =
  21. 21.Digital root of 42698 =
  22. 22.Digital root of 97298 =
  23. 23.Digital root of 54793 =
  24. 24.Digital root of 28 × 23 =
  25. 25.Digital root of 30098 =
  26. 26.Digital root of 15 × 35 =
  27. 27.Digital root of 12 × 93 =
  28. 28.Digital root of 46 × 16 =
  29. 29.Digital root of 35 × 60 =
  30. 30.Digital root of 62437 =
  31. 31.Digital root of 57051 =
  32. 32.Digital root of 66 × 94 =
  33. 33.Digital root of 49 × 55 =
  34. 34.Digital root of 61 × 13 =
  35. 35.Digital root of 99 × 79 =
  36. 36.Digital root of 685 =
  37. 37.Digital root of 18 × 82 =
  38. 38.Digital root of 14 × 28 =
  39. 39.Digital root of 9086 =
  40. 40.Digital root of 61541 =

Answer key

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

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