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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 744 · 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 96212 =
  2. 2.Digital root of 73 × 59 =
  3. 3.Digital root of 93 × 21 =
  4. 4.Digital root of 60 × 71 =
  5. 5.Digital root of 39 × 28 =
  6. 6.Digital root of 59553 =
  7. 7.Digital root of 5632 =
  8. 8.Digital root of 9516 =
  9. 9.Digital root of 31 × 21 =
  10. 10.Digital root of 17538 =
  11. 11.Digital root of 97241 =
  12. 12.Digital root of 2532 =
  13. 13.Digital root of 91 × 77 =
  14. 14.Digital root of 61 × 98 =
  15. 15.Digital root of 15465 =
  16. 16.Digital root of 21 × 27 =
  17. 17.Digital root of 32977 =
  18. 18.Digital root of 12061 =
  19. 19.Digital root of 12673 =
  20. 20.Digital root of 91104 =
  21. 21.Digital root of 63623 =
  22. 22.Digital root of 821 =
  23. 23.Digital root of 68 × 93 =
  24. 24.Digital root of 40 × 26 =
  25. 25.Digital root of 83 × 92 =
  26. 26.Digital root of 94489 =
  27. 27.Digital root of 99700 =
  28. 28.Digital root of 38 × 97 =
  29. 29.Digital root of 88 × 32 =
  30. 30.Digital root of 32 × 16 =
  31. 31.Digital root of 84744 =
  32. 32.Digital root of 71 × 39 =
  33. 33.Digital root of 40 × 56 =
  34. 34.Digital root of 23632 =
  35. 35.Digital root of 81930 =
  36. 36.Digital root of 32 × 62 =
  37. 37.Digital root of 19 × 97 =
  38. 38.Digital root of 47337 =
  39. 39.Digital root of 12332 =
  40. 40.Digital root of 26 × 63 =

Answer key

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

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