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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 653 · 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 25784 =
  2. 2.Digital root of 55 × 69 =
  3. 3.Digital root of 93 × 23 =
  4. 4.Digital root of 51 × 26 =
  5. 5.Digital root of 88 × 26 =
  6. 6.Digital root of 95480 =
  7. 7.Digital root of 58805 =
  8. 8.Digital root of 90 × 22 =
  9. 9.Digital root of 66826 =
  10. 10.Digital root of 12215 =
  11. 11.Digital root of 87656 =
  12. 12.Digital root of 45 × 31 =
  13. 13.Digital root of 91860 =
  14. 14.Digital root of 26997 =
  15. 15.Digital root of 61277 =
  16. 16.Digital root of 59658 =
  17. 17.Digital root of 39 × 27 =
  18. 18.Digital root of 55779 =
  19. 19.Digital root of 25858 =
  20. 20.Digital root of 53 × 68 =
  21. 21.Digital root of 16384 =
  22. 22.Digital root of 78 × 85 =
  23. 23.Digital root of 57 × 48 =
  24. 24.Digital root of 77235 =
  25. 25.Digital root of 37908 =
  26. 26.Digital root of 33 × 90 =
  27. 27.Digital root of 52 × 71 =
  28. 28.Digital root of 69559 =
  29. 29.Digital root of 21785 =
  30. 30.Digital root of 56 × 71 =
  31. 31.Digital root of 65116 =
  32. 32.Digital root of 15 × 99 =
  33. 33.Digital root of 34 × 83 =
  34. 34.Digital root of 23501 =
  35. 35.Digital root of 64 × 58 =
  36. 36.Digital root of 22260 =
  37. 37.Digital root of 34 × 94 =
  38. 38.Digital root of 81 × 26 =
  39. 39.Digital root of 80524 =
  40. 40.Digital root of 31197 =

Answer key

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

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