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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 599 · 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 × 24 =
  2. 2.Digital root of 20226 =
  3. 3.Digital root of 18374 =
  4. 4.Digital root of 20 × 95 =
  5. 5.Digital root of 57 × 44 =
  6. 6.Digital root of 46544 =
  7. 7.Digital root of 18 × 90 =
  8. 8.Digital root of 50599 =
  9. 9.Digital root of 79857 =
  10. 10.Digital root of 32 × 94 =
  11. 11.Digital root of 26 × 63 =
  12. 12.Digital root of 5105 =
  13. 13.Digital root of 56 × 27 =
  14. 14.Digital root of 94448 =
  15. 15.Digital root of 25025 =
  16. 16.Digital root of 30 × 69 =
  17. 17.Digital root of 72735 =
  18. 18.Digital root of 17 × 25 =
  19. 19.Digital root of 26598 =
  20. 20.Digital root of 3503 =
  21. 21.Digital root of 23 × 24 =
  22. 22.Digital root of 66157 =
  23. 23.Digital root of 12 × 14 =
  24. 24.Digital root of 92 × 69 =
  25. 25.Digital root of 46020 =
  26. 26.Digital root of 56852 =
  27. 27.Digital root of 66715 =
  28. 28.Digital root of 14767 =
  29. 29.Digital root of 22670 =
  30. 30.Digital root of 27 × 62 =
  31. 31.Digital root of 253 =
  32. 32.Digital root of 76 × 64 =
  33. 33.Digital root of 94441 =
  34. 34.Digital root of 6970 =
  35. 35.Digital root of 66361 =
  36. 36.Digital root of 32857 =
  37. 37.Digital root of 55 × 76 =
  38. 38.Digital root of 83210 =
  39. 39.Digital root of 15 × 55 =
  40. 40.Digital root of 64187 =

Answer key

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

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