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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 187 · 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 3095 =
  2. 2.Digital root of 34 × 53 =
  3. 3.Digital root of 58 × 71 =
  4. 4.Digital root of 64 × 72 =
  5. 5.Digital root of 99 × 37 =
  6. 6.Digital root of 94078 =
  7. 7.Digital root of 42 × 69 =
  8. 8.Digital root of 76 × 39 =
  9. 9.Digital root of 94 × 98 =
  10. 10.Digital root of 15389 =
  11. 11.Digital root of 676 =
  12. 12.Digital root of 36176 =
  13. 13.Digital root of 35922 =
  14. 14.Digital root of 92 × 88 =
  15. 15.Digital root of 69 × 38 =
  16. 16.Digital root of 48 × 62 =
  17. 17.Digital root of 89947 =
  18. 18.Digital root of 36 × 89 =
  19. 19.Digital root of 89537 =
  20. 20.Digital root of 72 × 65 =
  21. 21.Digital root of 1112 =
  22. 22.Digital root of 19 × 44 =
  23. 23.Digital root of 57874 =
  24. 24.Digital root of 79 × 83 =
  25. 25.Digital root of 80 × 94 =
  26. 26.Digital root of 18948 =
  27. 27.Digital root of 33 × 75 =
  28. 28.Digital root of 84 × 62 =
  29. 29.Digital root of 22819 =
  30. 30.Digital root of 35492 =
  31. 31.Digital root of 13636 =
  32. 32.Digital root of 27 × 92 =
  33. 33.Digital root of 53 × 28 =
  34. 34.Digital root of 95 × 97 =
  35. 35.Digital root of 56 × 49 =
  36. 36.Digital root of 29383 =
  37. 37.Digital root of 86 × 64 =
  38. 38.Digital root of 896 =
  39. 39.Digital root of 99 × 33 =
  40. 40.Digital root of 7020 =

Answer key

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

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