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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 355 · 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 31 × 34 =
  2. 2.Digital root of 59295 =
  3. 3.Digital root of 6630 =
  4. 4.Digital root of 81 × 34 =
  5. 5.Digital root of 82 × 29 =
  6. 6.Digital root of 69205 =
  7. 7.Digital root of 29144 =
  8. 8.Digital root of 90182 =
  9. 9.Digital root of 53333 =
  10. 10.Digital root of 44625 =
  11. 11.Digital root of 47 × 63 =
  12. 12.Digital root of 86 × 23 =
  13. 13.Digital root of 61581 =
  14. 14.Digital root of 83 × 75 =
  15. 15.Digital root of 92878 =
  16. 16.Digital root of 6083 =
  17. 17.Digital root of 47501 =
  18. 18.Digital root of 52 × 16 =
  19. 19.Digital root of 84407 =
  20. 20.Digital root of 99 × 43 =
  21. 21.Digital root of 18795 =
  22. 22.Digital root of 71 × 20 =
  23. 23.Digital root of 76 × 17 =
  24. 24.Digital root of 89992 =
  25. 25.Digital root of 17 × 31 =
  26. 26.Digital root of 98 × 29 =
  27. 27.Digital root of 85846 =
  28. 28.Digital root of 68299 =
  29. 29.Digital root of 53 × 51 =
  30. 30.Digital root of 93689 =
  31. 31.Digital root of 73 × 40 =
  32. 32.Digital root of 80 × 37 =
  33. 33.Digital root of 28327 =
  34. 34.Digital root of 71061 =
  35. 35.Digital root of 42971 =
  36. 36.Digital root of 24301 =
  37. 37.Digital root of 68 × 52 =
  38. 38.Digital root of 11594 =
  39. 39.Digital root of 15298 =
  40. 40.Digital root of 38 × 39 =

Answer key

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

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