Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 315 · 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 81613 =
2. 2.Digital root of 40 × 39 =
3. 3.Digital root of 21253 =
4. 4.Digital root of 12168 =
5. 5.Digital root of 81 × 62 =
6. 6.Digital root of 13 × 52 =
7. 7.Digital root of 44 × 55 =
8. 8.Digital root of 68642 =
9. 9.Digital root of 49397 =
10. 10.Digital root of 97 × 91 =
11. 11.Digital root of 23 × 67 =
12. 12.Digital root of 32719 =
13. 13.Digital root of 46 × 72 =
14. 14.Digital root of 46 × 19 =
15. 15.Digital root of 40 × 58 =
16. 16.Digital root of 51 × 87 =
17. 17.Digital root of 39 × 70 =
18. 18.Digital root of 37 × 36 =
19. 19.Digital root of 71 × 20 =
20. 20.Digital root of 43 × 89 =
21. 21.Digital root of 4079 =
22. 22.Digital root of 89856 =
23. 23.Digital root of 34 × 47 =
24. 24.Digital root of 7332 =
25. 25.Digital root of 15817 =
26. 26.Digital root of 47 × 90 =
27. 27.Digital root of 36 × 49 =
28. 28.Digital root of 54 × 95 =
29. 29.Digital root of 55386 =
30. 30.Digital root of 17 × 21 =
31. 31.Digital root of 18829 =
32. 32.Digital root of 57285 =
33. 33.Digital root of 63 × 26 =
34. 34.Digital root of 42 × 33 =
35. 35.Digital root of 28114 =
36. 36.Digital root of 52 × 78 =
37. 37.Digital root of 45 × 74 =
38. 38.Digital root of 90931 =
39. 39.Digital root of 2139 =
40. 40.Digital root of 67 × 28 =

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