Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 81 · 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. 1.129 × 9 =
2. 2.4 × 9 =
3. 3.2231 × 99 =
4. 4.19942 × 999 =
5. 5.214 × 999 =
6. 6.141 × 999 =
7. 7.1048 × 99 =
8. 8.2 × 9 =
9. 9.24 × 99 =
10. 10.14876 × 999 =
11. 11.2 × 9 =
12. 12.91 × 9 =
13. 13.694 × 999 =
14. 14.81 × 99 =
15. 15.14 × 99 =
16. 16.641 × 999 =
17. 17.749 × 999 =
18. 18.4 × 99 =
19. 19.1283 × 99 =
20. 20.6 × 9 =
21. 21.2873 × 99 =
22. 22.4 × 99 =
23. 23.5 × 9 =
24. 24.298 × 999 =
25. 25.3 × 9 =
26. 26.8 × 9 =
27. 27.681 × 999 =
28. 28.6 × 9 =
29. 29.2 × 9 =
30. 30.6 × 9 =
31. 31.2198 × 99 =
32. 32.302 × 999 =
33. 33.51 × 99 =
34. 34.4 × 9 =
35. 35.86 × 99 =
36. 36.4 × 9 =
37. 37.16 × 99 =
38. 38.985 × 99 =
39. 39.5 × 9 =
40. 40.49 × 99 =

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