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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 943 · 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 56615 =
  2. 2.Digital root of 73218 =
  3. 3.Digital root of 27503 =
  4. 4.Digital root of 33 × 57 =
  5. 5.Digital root of 93 × 37 =
  6. 6.Digital root of 95745 =
  7. 7.Digital root of 29 × 20 =
  8. 8.Digital root of 66 × 46 =
  9. 9.Digital root of 47 × 96 =
  10. 10.Digital root of 77 × 30 =
  11. 11.Digital root of 46 × 34 =
  12. 12.Digital root of 92447 =
  13. 13.Digital root of 51728 =
  14. 14.Digital root of 94139 =
  15. 15.Digital root of 92807 =
  16. 16.Digital root of 1558 =
  17. 17.Digital root of 50609 =
  18. 18.Digital root of 36 × 75 =
  19. 19.Digital root of 6960 =
  20. 20.Digital root of 64 × 55 =
  21. 21.Digital root of 8770 =
  22. 22.Digital root of 69227 =
  23. 23.Digital root of 6455 =
  24. 24.Digital root of 71704 =
  25. 25.Digital root of 48646 =
  26. 26.Digital root of 77270 =
  27. 27.Digital root of 86804 =
  28. 28.Digital root of 18 × 43 =
  29. 29.Digital root of 31 × 92 =
  30. 30.Digital root of 23314 =
  31. 31.Digital root of 43 × 24 =
  32. 32.Digital root of 71 × 79 =
  33. 33.Digital root of 89 × 39 =
  34. 34.Digital root of 98355 =
  35. 35.Digital root of 13826 =
  36. 36.Digital root of 95697 =
  37. 37.Digital root of 77 × 22 =
  38. 38.Digital root of 2438 =
  39. 39.Digital root of 58 × 24 =
  40. 40.Digital root of 55 × 53 =

Answer key

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

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