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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 381 · 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 22419 =
  2. 2.Digital root of 50293 =
  3. 3.Digital root of 91 × 34 =
  4. 4.Digital root of 86 × 45 =
  5. 5.Digital root of 7402 =
  6. 6.Digital root of 35 × 96 =
  7. 7.Digital root of 67 × 31 =
  8. 8.Digital root of 80 × 74 =
  9. 9.Digital root of 761 =
  10. 10.Digital root of 68058 =
  11. 11.Digital root of 21 × 39 =
  12. 12.Digital root of 21 × 19 =
  13. 13.Digital root of 68083 =
  14. 14.Digital root of 7576 =
  15. 15.Digital root of 37495 =
  16. 16.Digital root of 23 × 53 =
  17. 17.Digital root of 42 × 93 =
  18. 18.Digital root of 16 × 85 =
  19. 19.Digital root of 56479 =
  20. 20.Digital root of 62 × 83 =
  21. 21.Digital root of 69 × 72 =
  22. 22.Digital root of 62269 =
  23. 23.Digital root of 33745 =
  24. 24.Digital root of 71172 =
  25. 25.Digital root of 52679 =
  26. 26.Digital root of 18 × 70 =
  27. 27.Digital root of 94 × 71 =
  28. 28.Digital root of 67 × 37 =
  29. 29.Digital root of 88044 =
  30. 30.Digital root of 60887 =
  31. 31.Digital root of 89824 =
  32. 32.Digital root of 72 × 79 =
  33. 33.Digital root of 34123 =
  34. 34.Digital root of 59 × 48 =
  35. 35.Digital root of 26228 =
  36. 36.Digital root of 52 × 34 =
  37. 37.Digital root of 41331 =
  38. 38.Digital root of 16891 =
  39. 39.Digital root of 38 × 84 =
  40. 40.Digital root of 44632 =

Answer key

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

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