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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 65 · 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 62 × 26 =
  2. 2.Digital root of 91351 =
  3. 3.Digital root of 77579 =
  4. 4.Digital root of 91160 =
  5. 5.Digital root of 29793 =
  6. 6.Digital root of 43306 =
  7. 7.Digital root of 49899 =
  8. 8.Digital root of 56 × 30 =
  9. 9.Digital root of 21 × 18 =
  10. 10.Digital root of 73755 =
  11. 11.Digital root of 7859 =
  12. 12.Digital root of 72792 =
  13. 13.Digital root of 20 × 28 =
  14. 14.Digital root of 67647 =
  15. 15.Digital root of 24 × 86 =
  16. 16.Digital root of 88 × 44 =
  17. 17.Digital root of 67229 =
  18. 18.Digital root of 58 × 23 =
  19. 19.Digital root of 83 × 30 =
  20. 20.Digital root of 52 × 44 =
  21. 21.Digital root of 33 × 53 =
  22. 22.Digital root of 74389 =
  23. 23.Digital root of 59 × 85 =
  24. 24.Digital root of 25 × 87 =
  25. 25.Digital root of 48 × 35 =
  26. 26.Digital root of 34 × 81 =
  27. 27.Digital root of 60 × 35 =
  28. 28.Digital root of 77963 =
  29. 29.Digital root of 65244 =
  30. 30.Digital root of 44191 =
  31. 31.Digital root of 13 × 92 =
  32. 32.Digital root of 33 × 33 =
  33. 33.Digital root of 63 × 15 =
  34. 34.Digital root of 5460 =
  35. 35.Digital root of 48359 =
  36. 36.Digital root of 5889 =
  37. 37.Digital root of 13 × 71 =
  38. 38.Digital root of 41870 =
  39. 39.Digital root of 17261 =
  40. 40.Digital root of 65136 =

Answer key

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

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