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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 972 · 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 57432 =
  2. 2.Digital root of 2577 =
  3. 3.Digital root of 51 × 58 =
  4. 4.Digital root of 32218 =
  5. 5.Digital root of 98 × 93 =
  6. 6.Digital root of 54133 =
  7. 7.Digital root of 42 × 92 =
  8. 8.Digital root of 69 × 87 =
  9. 9.Digital root of 79030 =
  10. 10.Digital root of 41 × 35 =
  11. 11.Digital root of 68 × 78 =
  12. 12.Digital root of 66436 =
  13. 13.Digital root of 14209 =
  14. 14.Digital root of 57466 =
  15. 15.Digital root of 34 × 67 =
  16. 16.Digital root of 88509 =
  17. 17.Digital root of 92774 =
  18. 18.Digital root of 22 × 19 =
  19. 19.Digital root of 15 × 58 =
  20. 20.Digital root of 66795 =
  21. 21.Digital root of 8600 =
  22. 22.Digital root of 66737 =
  23. 23.Digital root of 66363 =
  24. 24.Digital root of 75 × 18 =
  25. 25.Digital root of 65145 =
  26. 26.Digital root of 23 × 32 =
  27. 27.Digital root of 96247 =
  28. 28.Digital root of 21 × 36 =
  29. 29.Digital root of 29276 =
  30. 30.Digital root of 61 × 87 =
  31. 31.Digital root of 56 × 23 =
  32. 32.Digital root of 88894 =
  33. 33.Digital root of 43074 =
  34. 34.Digital root of 57706 =
  35. 35.Digital root of 82847 =
  36. 36.Digital root of 77 × 57 =
  37. 37.Digital root of 92 × 27 =
  38. 38.Digital root of 79617 =
  39. 39.Digital root of 87545 =
  40. 40.Digital root of 34 × 91 =

Answer key

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

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