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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 871 · 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 23324 =
  2. 2.Digital root of 70 × 19 =
  3. 3.Digital root of 88 × 97 =
  4. 4.Digital root of 6169 =
  5. 5.Digital root of 96652 =
  6. 6.Digital root of 24090 =
  7. 7.Digital root of 26601 =
  8. 8.Digital root of 81 × 15 =
  9. 9.Digital root of 17416 =
  10. 10.Digital root of 74778 =
  11. 11.Digital root of 67 × 27 =
  12. 12.Digital root of 96396 =
  13. 13.Digital root of 74 × 26 =
  14. 14.Digital root of 12320 =
  15. 15.Digital root of 24 × 12 =
  16. 16.Digital root of 25 × 88 =
  17. 17.Digital root of 69 × 39 =
  18. 18.Digital root of 61 × 42 =
  19. 19.Digital root of 56 × 93 =
  20. 20.Digital root of 70843 =
  21. 21.Digital root of 18444 =
  22. 22.Digital root of 98 × 72 =
  23. 23.Digital root of 78 × 97 =
  24. 24.Digital root of 12539 =
  25. 25.Digital root of 61207 =
  26. 26.Digital root of 97 × 94 =
  27. 27.Digital root of 58192 =
  28. 28.Digital root of 43474 =
  29. 29.Digital root of 16 × 58 =
  30. 30.Digital root of 68317 =
  31. 31.Digital root of 91277 =
  32. 32.Digital root of 63 × 28 =
  33. 33.Digital root of 58 × 80 =
  34. 34.Digital root of 42450 =
  35. 35.Digital root of 85 × 47 =
  36. 36.Digital root of 94240 =
  37. 37.Digital root of 23 × 44 =
  38. 38.Digital root of 22477 =
  39. 39.Digital root of 78 × 35 =
  40. 40.Digital root of 37630 =

Answer key

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

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