Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 226 · 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. 1.828 × 999 =
2. 2.1556 × 99 =
3. 3.45 × 99 =
4. 4.1898 × 99 =
5. 5.25 × 99 =
6. 6.42 × 9 =
7. 7.27558 × 999 =
8. 8.734 × 999 =
9. 9.91 × 99 =
10. 10.157 × 9 =
11. 11.141 × 9 =
12. 12.333 × 99 =
13. 13.2017 × 99 =
14. 14.2776 × 99 =
15. 15.642 × 999 =
16. 16.227 × 999 =
17. 17.57 × 99 =
18. 18.4 × 9 =
19. 19.2 × 9 =
20. 20.493 × 999 =
21. 21.748 × 999 =
22. 22.74 × 9 =
23. 23.67 × 99 =
24. 24.207 × 9 =
25. 25.5 × 9 =
26. 26.34 × 99 =
27. 27.943 × 999 =
28. 28.92 × 99 =
29. 29.49 × 99 =
30. 30.62 × 99 =
31. 31.792 × 999 =
32. 32.223 × 9 =
33. 33.173 × 999 =
34. 34.137 × 999 =
35. 35.6 × 9 =
36. 36.738 × 999 =
37. 37.87 × 99 =
38. 38.37 × 99 =
39. 39.82 × 9 =
40. 40.732 × 999 =

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