Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 985 · 40 sums

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.

1. 1.Digital root of 39 × 55 =
2. 2.Digital root of 13 × 32 =
3. 3.Digital root of 49640 =
4. 4.Digital root of 9488 =
5. 5.Digital root of 39 × 13 =
6. 6.Digital root of 51 × 12 =
7. 7.Digital root of 64 × 70 =
8. 8.Digital root of 81222 =
9. 9.Digital root of 41 × 99 =
10. 10.Digital root of 73 × 49 =
11. 11.Digital root of 97293 =
12. 12.Digital root of 93 × 91 =
13. 13.Digital root of 76 × 54 =
14. 14.Digital root of 65 × 98 =
15. 15.Digital root of 7872 =
16. 16.Digital root of 82038 =
17. 17.Digital root of 64184 =
18. 18.Digital root of 8503 =
19. 19.Digital root of 21 × 90 =
20. 20.Digital root of 10213 =
21. 21.Digital root of 95 × 26 =
22. 22.Digital root of 20 × 45 =
23. 23.Digital root of 37 × 72 =
24. 24.Digital root of 22296 =
25. 25.Digital root of 66 × 45 =
26. 26.Digital root of 89337 =
27. 27.Digital root of 47790 =
28. 28.Digital root of 51235 =
29. 29.Digital root of 67 × 25 =
30. 30.Digital root of 53378 =
31. 31.Digital root of 77827 =
32. 32.Digital root of 75442 =
33. 33.Digital root of 97375 =
34. 34.Digital root of 52 × 84 =
35. 35.Digital root of 94 × 68 =
36. 36.Digital root of 38 × 63 =
37. 37.Digital root of 8704 =
38. 38.Digital root of 54833 =
39. 39.Digital root of 64133 =
40. 40.Digital root of 30 × 90 =

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