Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 821 · 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. 1.2295 × 99 =
2. 2.2596 × 99 =
3. 3.797 × 999 =
4. 4.24 × 99 =
5. 5.482 × 999 =
6. 6.7 × 9 =
7. 7.2771 × 99 =
8. 8.903 × 999 =
9. 9.217 × 999 =
10. 10.93 × 99 =
11. 11.5 × 9 =
12. 12.134 × 999 =
13. 13.3 × 9 =
14. 14.121 × 9 =
15. 15.1302 × 99 =
16. 16.2901 × 99 =
17. 17.4 × 9 =
18. 18.195 × 99 =
19. 19.8 × 9 =
20. 20.3 × 9 =
21. 21.5 × 9 =
22. 22.841 × 999 =
23. 23.2 × 9 =
24. 24.3 × 9 =
25. 25.8 × 9 =
26. 26.111 × 99 =
27. 27.7 × 9 =
28. 28.71 × 9 =
29. 29.646 × 999 =
30. 30.269 × 9 =
31. 31.27 × 99 =
32. 32.94 × 99 =
33. 33.28386 × 999 =
34. 34.299 × 999 =
35. 35.4 × 9 =
36. 36.747 × 99 =
37. 37.6 × 9 =
38. 38.839 × 999 =
39. 39.842 × 999 =
40. 40.3 × 99 =

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