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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 967 · 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 45 × 60 =
  2. 2.Digital root of 73322 =
  3. 3.Digital root of 78 × 47 =
  4. 4.Digital root of 98590 =
  5. 5.Digital root of 12 × 56 =
  6. 6.Digital root of 51 × 13 =
  7. 7.Digital root of 77 × 92 =
  8. 8.Digital root of 58 × 88 =
  9. 9.Digital root of 62 × 14 =
  10. 10.Digital root of 26 × 92 =
  11. 11.Digital root of 36541 =
  12. 12.Digital root of 80 × 13 =
  13. 13.Digital root of 34504 =
  14. 14.Digital root of 74 × 92 =
  15. 15.Digital root of 67758 =
  16. 16.Digital root of 65 × 58 =
  17. 17.Digital root of 10229 =
  18. 18.Digital root of 73 × 66 =
  19. 19.Digital root of 72 × 21 =
  20. 20.Digital root of 10051 =
  21. 21.Digital root of 51575 =
  22. 22.Digital root of 43456 =
  23. 23.Digital root of 13 × 90 =
  24. 24.Digital root of 65 × 96 =
  25. 25.Digital root of 37 × 21 =
  26. 26.Digital root of 7301 =
  27. 27.Digital root of 7200 =
  28. 28.Digital root of 26911 =
  29. 29.Digital root of 90 × 59 =
  30. 30.Digital root of 35 × 48 =
  31. 31.Digital root of 48 × 47 =
  32. 32.Digital root of 51 × 39 =
  33. 33.Digital root of 74 × 14 =
  34. 34.Digital root of 30628 =
  35. 35.Digital root of 32 × 23 =
  36. 36.Digital root of 19373 =
  37. 37.Digital root of 18439 =
  38. 38.Digital root of 75694 =
  39. 39.Digital root of 88751 =
  40. 40.Digital root of 21756 =

Answer key

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

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