Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 692 · 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 99 × 53 =
2. 2.Digital root of 27035 =
3. 3.Digital root of 10003 =
4. 4.Digital root of 75978 =
5. 5.Digital root of 7420 =
6. 6.Digital root of 13547 =
7. 7.Digital root of 77692 =
8. 8.Digital root of 62385 =
9. 9.Digital root of 69 × 20 =
10. 10.Digital root of 38 × 52 =
11. 11.Digital root of 75218 =
12. 12.Digital root of 24294 =
13. 13.Digital root of 73 × 21 =
14. 14.Digital root of 21 × 87 =
15. 15.Digital root of 2064 =
16. 16.Digital root of 8799 =
17. 17.Digital root of 36 × 82 =
18. 18.Digital root of 85 × 90 =
19. 19.Digital root of 32 × 88 =
20. 20.Digital root of 21 × 12 =
21. 21.Digital root of 85 × 19 =
22. 22.Digital root of 86 × 75 =
23. 23.Digital root of 17 × 78 =
24. 24.Digital root of 79564 =
25. 25.Digital root of 31823 =
26. 26.Digital root of 42 × 20 =
27. 27.Digital root of 15248 =
28. 28.Digital root of 62 × 41 =
29. 29.Digital root of 94549 =
30. 30.Digital root of 20 × 21 =
31. 31.Digital root of 23 × 72 =
32. 32.Digital root of 57148 =
33. 33.Digital root of 39 × 88 =
34. 34.Digital root of 32 × 71 =
35. 35.Digital root of 17 × 64 =
36. 36.Digital root of 16536 =
37. 37.Digital root of 36 × 34 =
38. 38.Digital root of 99 × 32 =
39. 39.Digital root of 87385 =
40. 40.Digital root of 81 × 47 =

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