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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 902 · 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 32616 =
  2. 2.Digital root of 81 × 49 =
  3. 3.Digital root of 21990 =
  4. 4.Digital root of 22736 =
  5. 5.Digital root of 5105 =
  6. 6.Digital root of 19904 =
  7. 7.Digital root of 37 × 62 =
  8. 8.Digital root of 96183 =
  9. 9.Digital root of 5596 =
  10. 10.Digital root of 86 × 57 =
  11. 11.Digital root of 67 × 72 =
  12. 12.Digital root of 80 × 83 =
  13. 13.Digital root of 26 × 52 =
  14. 14.Digital root of 49 × 68 =
  15. 15.Digital root of 94412 =
  16. 16.Digital root of 53065 =
  17. 17.Digital root of 56 × 95 =
  18. 18.Digital root of 27390 =
  19. 19.Digital root of 75 × 44 =
  20. 20.Digital root of 31 × 42 =
  21. 21.Digital root of 93319 =
  22. 22.Digital root of 81 × 88 =
  23. 23.Digital root of 45394 =
  24. 24.Digital root of 7228 =
  25. 25.Digital root of 69 × 99 =
  26. 26.Digital root of 8993 =
  27. 27.Digital root of 867 =
  28. 28.Digital root of 50938 =
  29. 29.Digital root of 60628 =
  30. 30.Digital root of 30 × 43 =
  31. 31.Digital root of 1419 =
  32. 32.Digital root of 67729 =
  33. 33.Digital root of 63 × 25 =
  34. 34.Digital root of 96 × 85 =
  35. 35.Digital root of 36 × 47 =
  36. 36.Digital root of 9057 =
  37. 37.Digital root of 39 × 58 =
  38. 38.Digital root of 19070 =
  39. 39.Digital root of 46487 =
  40. 40.Digital root of 98521 =

Answer key

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

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