Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 81 · 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 78 × 82 =
2. 2.Digital root of 92497 =
3. 3.Digital root of 71 × 70 =
4. 4.Digital root of 27 × 92 =
5. 5.Digital root of 99 × 36 =
6. 6.Digital root of 64019 =
7. 7.Digital root of 38 × 29 =
8. 8.Digital root of 99719 =
9. 9.Digital root of 39064 =
10. 10.Digital root of 31 × 88 =
11. 11.Digital root of 57677 =
12. 12.Digital root of 80 × 47 =
13. 13.Digital root of 40638 =
14. 14.Digital root of 50 × 48 =
15. 15.Digital root of 88144 =
16. 16.Digital root of 77 × 22 =
17. 17.Digital root of 58005 =
18. 18.Digital root of 79519 =
19. 19.Digital root of 33671 =
20. 20.Digital root of 82 × 80 =
21. 21.Digital root of 95250 =
22. 22.Digital root of 16 × 53 =
23. 23.Digital root of 79 × 72 =
24. 24.Digital root of 14393 =
25. 25.Digital root of 66640 =
26. 26.Digital root of 87 × 55 =
27. 27.Digital root of 34 × 83 =
28. 28.Digital root of 4271 =
29. 29.Digital root of 43 × 17 =
30. 30.Digital root of 58392 =
31. 31.Digital root of 96 × 79 =
32. 32.Digital root of 54 × 93 =
33. 33.Digital root of 42507 =
34. 34.Digital root of 75919 =
35. 35.Digital root of 27052 =
36. 36.Digital root of 39591 =
37. 37.Digital root of 38339 =
38. 38.Digital root of 75739 =
39. 39.Digital root of 30518 =
40. 40.Digital root of 86 × 14 =

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