Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 193 · 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. 1.2343 × 99 =
2. 2.2 × 9 =
3. 3.19 × 99 =
4. 4.8 × 9 =
5. 5.4 × 9 =
6. 6.18 × 99 =
7. 7.1654 × 99 =
8. 8.186 × 999 =
9. 9.13 × 99 =
10. 10.11 × 99 =
11. 11.692 × 999 =
12. 12.16 × 99 =
13. 13.96 × 99 =
14. 14.28 × 99 =
15. 15.5 × 9 =
16. 16.19 × 9 =
17. 17.65 × 99 =
18. 18.32 × 9 =
19. 19.9 × 99 =
20. 20.47 × 99 =
21. 21.576 × 999 =
22. 22.21132 × 999 =
23. 23.2 × 9 =
24. 24.578 × 99 =
25. 25.21 × 99 =
26. 26.19 × 99 =
27. 27.49 × 999 =
28. 28.3 × 9 =
29. 29.448 × 999 =
30. 30.2897 × 99 =
31. 31.2867 × 99 =
32. 32.177 × 9 =
33. 33.51 × 99 =
34. 34.41 × 99 =
35. 35.781 × 999 =
36. 36.25726 × 999 =
37. 37.19241 × 999 =
38. 38.18 × 99 =
39. 39.34 × 99 =
40. 40.896 × 99 =

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