Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 742 · 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. 1.245 × 99 =
2. 2.91 × 99 =
3. 3.29245 × 999 =
4. 4.466 × 999 =
5. 5.10207 × 999 =
6. 6.2 × 9 =
7. 7.2068 × 99 =
8. 8.49 × 99 =
9. 9.2 × 9 =
10. 10.61 × 9 =
11. 11.493 × 99 =
12. 12.378 × 999 =
13. 13.4 × 9 =
14. 14.5 × 9 =
15. 15.541 × 999 =
16. 16.84 × 9 =
17. 17.82 × 99 =
18. 18.6 × 9 =
19. 19.622 × 999 =
20. 20.32 × 9 =
21. 21.294 × 999 =
22. 22.245 × 9 =
23. 23.468 × 999 =
24. 24.2 × 9 =
25. 25.2475 × 99 =
26. 26.21855 × 999 =
27. 27.48 × 99 =
28. 28.941 × 999 =
29. 29.107 × 9 =
30. 30.7 × 9 =
31. 31.1937 × 99 =
32. 32.124 × 999 =
33. 33.364 × 99 =
34. 34.25 × 9 =
35. 35.16661 × 999 =
36. 36.3 × 9 =
37. 37.2042 × 99 =
38. 38.13425 × 999 =
39. 39.3 × 9 =
40. 40.7 × 99 =

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