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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 68 · 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 2884 =
  2. 2.Digital root of 72985 =
  3. 3.Digital root of 81264 =
  4. 4.Digital root of 37 × 96 =
  5. 5.Digital root of 98149 =
  6. 6.Digital root of 54044 =
  7. 7.Digital root of 75137 =
  8. 8.Digital root of 48542 =
  9. 9.Digital root of 36 × 38 =
  10. 10.Digital root of 11571 =
  11. 11.Digital root of 45 × 54 =
  12. 12.Digital root of 98 × 32 =
  13. 13.Digital root of 668 =
  14. 14.Digital root of 24625 =
  15. 15.Digital root of 70 × 93 =
  16. 16.Digital root of 22 × 60 =
  17. 17.Digital root of 48190 =
  18. 18.Digital root of 94413 =
  19. 19.Digital root of 64 × 29 =
  20. 20.Digital root of 36 × 90 =
  21. 21.Digital root of 42 × 20 =
  22. 22.Digital root of 79 × 98 =
  23. 23.Digital root of 3730 =
  24. 24.Digital root of 23 × 36 =
  25. 25.Digital root of 83854 =
  26. 26.Digital root of 30 × 95 =
  27. 27.Digital root of 34 × 40 =
  28. 28.Digital root of 18 × 27 =
  29. 29.Digital root of 17 × 92 =
  30. 30.Digital root of 69 × 96 =
  31. 31.Digital root of 87230 =
  32. 32.Digital root of 42459 =
  33. 33.Digital root of 74 × 94 =
  34. 34.Digital root of 84 × 48 =
  35. 35.Digital root of 55 × 52 =
  36. 36.Digital root of 46 × 53 =
  37. 37.Digital root of 22 × 26 =
  38. 38.Digital root of 35 × 65 =
  39. 39.Digital root of 56 × 63 =
  40. 40.Digital root of 63061 =

Answer key

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

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