Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 204 · 40 sums

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

1. 1.126 × 999 =
2. 2.25 × 99 =
3. 3.24 × 99 =
4. 4.25 × 99 =
5. 5.951 × 99 =
6. 6.8 × 9 =
7. 7.851 × 999 =
8. 8.10386 × 999 =
9. 9.2686 × 99 =
10. 10.52 × 99 =
11. 11.6623 × 999 =
12. 12.5 × 9 =
13. 13.21 × 99 =
14. 14.53 × 99 =
15. 15.49 × 99 =
16. 16.16 × 99 =
17. 17.455 × 999 =
18. 18.2 × 9 =
19. 19.6 × 9 =
20. 20.8 × 9 =
21. 21.2646 × 999 =
22. 22.7 × 9 =
23. 23.1521 × 99 =
24. 24.856 × 999 =
25. 25.2 × 9 =
26. 26.22131 × 999 =
27. 27.81 × 9 =
28. 28.5 × 9 =
29. 29.56 × 9 =
30. 30.608 × 999 =
31. 31.2 × 9 =
32. 32.214 × 9 =
33. 33.36 × 999 =
34. 34.5 × 9 =
35. 35.16 × 99 =
36. 36.51 × 99 =
37. 37.68 × 99 =
38. 38.623 × 99 =
39. 39.2 × 9 =
40. 40.81 × 99 =

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