Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 460 · 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 57 × 85 =
2. 2.Digital root of 60 × 92 =
3. 3.Digital root of 64890 =
4. 4.Digital root of 15578 =
5. 5.Digital root of 559 =
6. 6.Digital root of 23 × 43 =
7. 7.Digital root of 51 × 80 =
8. 8.Digital root of 21435 =
9. 9.Digital root of 18321 =
10. 10.Digital root of 77713 =
11. 11.Digital root of 61 × 38 =
12. 12.Digital root of 21017 =
13. 13.Digital root of 38651 =
14. 14.Digital root of 14 × 44 =
15. 15.Digital root of 30411 =
16. 16.Digital root of 36 × 86 =
17. 17.Digital root of 40089 =
18. 18.Digital root of 50757 =
19. 19.Digital root of 35622 =
20. 20.Digital root of 52637 =
21. 21.Digital root of 10455 =
22. 22.Digital root of 92 × 71 =
23. 23.Digital root of 2228 =
24. 24.Digital root of 40 × 91 =
25. 25.Digital root of 66 × 70 =
26. 26.Digital root of 81144 =
27. 27.Digital root of 28 × 63 =
28. 28.Digital root of 45 × 17 =
29. 29.Digital root of 24591 =
30. 30.Digital root of 10682 =
31. 31.Digital root of 24376 =
32. 32.Digital root of 75 × 92 =
33. 33.Digital root of 6253 =
34. 34.Digital root of 20708 =
35. 35.Digital root of 99509 =
36. 36.Digital root of 25 × 17 =
37. 37.Digital root of 12 × 74 =
38. 38.Digital root of 24936 =
39. 39.Digital root of 97 × 31 =
40. 40.Digital root of 30379 =

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