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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 100 · 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 55276 =
  2. 2.Digital root of 40 × 14 =
  3. 3.Digital root of 80747 =
  4. 4.Digital root of 24 × 85 =
  5. 5.Digital root of 62565 =
  6. 6.Digital root of 54 × 95 =
  7. 7.Digital root of 40452 =
  8. 8.Digital root of 46 × 72 =
  9. 9.Digital root of 75 × 73 =
  10. 10.Digital root of 30794 =
  11. 11.Digital root of 32 × 15 =
  12. 12.Digital root of 76106 =
  13. 13.Digital root of 1136 =
  14. 14.Digital root of 37 × 63 =
  15. 15.Digital root of 85 × 36 =
  16. 16.Digital root of 11230 =
  17. 17.Digital root of 60452 =
  18. 18.Digital root of 15 × 22 =
  19. 19.Digital root of 74 × 13 =
  20. 20.Digital root of 43376 =
  21. 21.Digital root of 51133 =
  22. 22.Digital root of 16266 =
  23. 23.Digital root of 55 × 59 =
  24. 24.Digital root of 20623 =
  25. 25.Digital root of 27611 =
  26. 26.Digital root of 94724 =
  27. 27.Digital root of 77178 =
  28. 28.Digital root of 13 × 12 =
  29. 29.Digital root of 68878 =
  30. 30.Digital root of 14 × 42 =
  31. 31.Digital root of 5006 =
  32. 32.Digital root of 73644 =
  33. 33.Digital root of 98636 =
  34. 34.Digital root of 9551 =
  35. 35.Digital root of 35635 =
  36. 36.Digital root of 24 × 63 =
  37. 37.Digital root of 80 × 22 =
  38. 38.Digital root of 30 × 55 =
  39. 39.Digital root of 53 × 13 =
  40. 40.Digital root of 67 × 84 =

Answer key

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

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