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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 261 · 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 80 × 79 =
  2. 2.Digital root of 80961 =
  3. 3.Digital root of 65 × 25 =
  4. 4.Digital root of 38 × 92 =
  5. 5.Digital root of 22445 =
  6. 6.Digital root of 56897 =
  7. 7.Digital root of 12430 =
  8. 8.Digital root of 25854 =
  9. 9.Digital root of 34 × 51 =
  10. 10.Digital root of 3340 =
  11. 11.Digital root of 16843 =
  12. 12.Digital root of 37 × 98 =
  13. 13.Digital root of 86 × 96 =
  14. 14.Digital root of 17120 =
  15. 15.Digital root of 97856 =
  16. 16.Digital root of 44357 =
  17. 17.Digital root of 21901 =
  18. 18.Digital root of 41544 =
  19. 19.Digital root of 43506 =
  20. 20.Digital root of 64292 =
  21. 21.Digital root of 26444 =
  22. 22.Digital root of 63394 =
  23. 23.Digital root of 39097 =
  24. 24.Digital root of 48 × 55 =
  25. 25.Digital root of 2293 =
  26. 26.Digital root of 69 × 64 =
  27. 27.Digital root of 72 × 56 =
  28. 28.Digital root of 27 × 63 =
  29. 29.Digital root of 75906 =
  30. 30.Digital root of 51 × 57 =
  31. 31.Digital root of 45270 =
  32. 32.Digital root of 65 × 73 =
  33. 33.Digital root of 58373 =
  34. 34.Digital root of 62 × 47 =
  35. 35.Digital root of 67153 =
  36. 36.Digital root of 75667 =
  37. 37.Digital root of 15462 =
  38. 38.Digital root of 97 × 93 =
  39. 39.Digital root of 68176 =
  40. 40.Digital root of 46956 =

Answer key

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

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