Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 315 · 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. 1.2 × 99 =
2. 2.254 × 9 =
3. 3.26 × 99 =
4. 4.432 × 999 =
5. 5.6 × 9 =
6. 6.173 × 9 =
7. 7.4847 × 999 =
8. 8.58 × 99 =
9. 9.87 × 99 =
10. 10.6 × 9 =
11. 11.4 × 9 =
12. 12.79 × 99 =
13. 13.264 × 9 =
14. 14.19386 × 999 =
15. 15.3 × 9 =
16. 16.2 × 9 =
17. 17.77 × 99 =
18. 18.8 × 9 =
19. 19.57 × 99 =
20. 20.254 × 9 =
21. 21.39 × 99 =
22. 22.4 × 9 =
23. 23.7 × 9 =
24. 24.72 × 99 =
25. 25.29751 × 999 =
26. 26.434 × 999 =
27. 27.535 × 999 =
28. 28.83 × 99 =
29. 29.4 × 9 =
30. 30.2728 × 99 =
31. 31.968 × 999 =
32. 32.1891 × 999 =
33. 33.6 × 9 =
34. 34.95 × 99 =
35. 35.6 × 9 =
36. 36.61 × 99 =
37. 37.481 × 999 =
38. 38.12 × 99 =
39. 39.6 × 9 =
40. 40.7 × 9 =

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