Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 765 · 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. 1.15 × 99 =
2. 2.5 × 9 =
3. 3.641 × 999 =
4. 4.4 × 99 =
5. 5.42 × 99 =
6. 6.3 × 9 =
7. 7.861 × 999 =
8. 8.954 × 999 =
9. 9.11 × 999 =
10. 10.148 × 999 =
11. 11.6641 × 999 =
12. 12.4 × 9 =
13. 13.708 × 999 =
14. 14.16 × 99 =
15. 15.18303 × 999 =
16. 16.382 × 99 =
17. 17.757 × 999 =
18. 18.335 × 999 =
19. 19.4 × 99 =
20. 20.308 × 999 =
21. 21.49 × 99 =
22. 22.414 × 999 =
23. 23.2773 × 99 =
24. 24.38 × 99 =
25. 25.457 × 999 =
26. 26.5 × 9 =
27. 27.27 × 99 =
28. 28.79 × 9 =
29. 29.6 × 9 =
30. 30.13 × 99 =
31. 31.2995 × 999 =
32. 32.6 × 9 =
33. 33.26745 × 999 =
34. 34.455 × 99 =
35. 35.51 × 99 =
36. 36.19 × 999 =
37. 37.209 × 9 =
38. 38.88 × 999 =
39. 39.55 × 99 =
40. 40.5624 × 999 =

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