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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 59 · 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 98416 =
  2. 2.Digital root of 23 × 27 =
  3. 3.Digital root of 70495 =
  4. 4.Digital root of 74 × 36 =
  5. 5.Digital root of 28594 =
  6. 6.Digital root of 74036 =
  7. 7.Digital root of 22 × 75 =
  8. 8.Digital root of 33 × 47 =
  9. 9.Digital root of 84565 =
  10. 10.Digital root of 74044 =
  11. 11.Digital root of 92 × 17 =
  12. 12.Digital root of 50 × 61 =
  13. 13.Digital root of 15 × 81 =
  14. 14.Digital root of 15 × 79 =
  15. 15.Digital root of 92 × 63 =
  16. 16.Digital root of 25797 =
  17. 17.Digital root of 96 × 18 =
  18. 18.Digital root of 38368 =
  19. 19.Digital root of 29 × 61 =
  20. 20.Digital root of 6497 =
  21. 21.Digital root of 18 × 18 =
  22. 22.Digital root of 2684 =
  23. 23.Digital root of 19503 =
  24. 24.Digital root of 77289 =
  25. 25.Digital root of 25213 =
  26. 26.Digital root of 96 × 76 =
  27. 27.Digital root of 46920 =
  28. 28.Digital root of 23215 =
  29. 29.Digital root of 87 × 72 =
  30. 30.Digital root of 71 × 98 =
  31. 31.Digital root of 52 × 58 =
  32. 32.Digital root of 82 × 67 =
  33. 33.Digital root of 48861 =
  34. 34.Digital root of 35400 =
  35. 35.Digital root of 84918 =
  36. 36.Digital root of 85 × 80 =
  37. 37.Digital root of 24 × 34 =
  38. 38.Digital root of 18613 =
  39. 39.Digital root of 11336 =
  40. 40.Digital root of 93 × 68 =

Answer key

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

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