Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 729 · 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 × 80 =
2. 2.Digital root of 74015 =
3. 3.Digital root of 55339 =
4. 4.Digital root of 50 × 29 =
5. 5.Digital root of 37 × 71 =
6. 6.Digital root of 26 × 48 =
7. 7.Digital root of 82 × 80 =
8. 8.Digital root of 99701 =
9. 9.Digital root of 33 × 32 =
10. 10.Digital root of 78052 =
11. 11.Digital root of 48 × 79 =
12. 12.Digital root of 29 × 14 =
13. 13.Digital root of 87889 =
14. 14.Digital root of 61 × 15 =
15. 15.Digital root of 31458 =
16. 16.Digital root of 80890 =
17. 17.Digital root of 32 × 60 =
18. 18.Digital root of 21496 =
19. 19.Digital root of 4037 =
20. 20.Digital root of 21587 =
21. 21.Digital root of 84964 =
22. 22.Digital root of 98308 =
23. 23.Digital root of 90773 =
24. 24.Digital root of 52 × 87 =
25. 25.Digital root of 34 × 61 =
26. 26.Digital root of 36 × 59 =
27. 27.Digital root of 27 × 28 =
28. 28.Digital root of 77836 =
29. 29.Digital root of 47 × 46 =
30. 30.Digital root of 25383 =
31. 31.Digital root of 65 × 18 =
32. 32.Digital root of 13 × 83 =
33. 33.Digital root of 95 × 54 =
34. 34.Digital root of 73 × 66 =
35. 35.Digital root of 45530 =
36. 36.Digital root of 93344 =
37. 37.Digital root of 32670 =
38. 38.Digital root of 35 × 94 =
39. 39.Digital root of 70398 =
40. 40.Digital root of 81080 =

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