Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 174 · 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. 1.1977 × 99 =
2. 2.7 × 99 =
3. 3.7 × 9 =
4. 4.7 × 9 =
5. 5.2473 × 99 =
6. 6.39 × 99 =
7. 7.501 × 999 =
8. 8.34 × 999 =
9. 9.242 × 9 =
10. 10.1758 × 99 =
11. 11.21 × 99 =
12. 12.316 × 999 =
13. 13.291 × 999 =
14. 14.2 × 9 =
15. 15.3 × 9 =
16. 16.3 × 9 =
17. 17.4 × 9 =
18. 18.267 × 999 =
19. 19.4 × 9 =
20. 20.6 × 9 =
21. 21.18601 × 999 =
22. 22.366 × 999 =
23. 23.2819 × 99 =
24. 24.62 × 99 =
25. 25.8 × 99 =
26. 26.404 × 999 =
27. 27.495 × 99 =
28. 28.3424 × 999 =
29. 29.81 × 99 =
30. 30.2694 × 999 =
31. 31.3 × 99 =
32. 32.89 × 99 =
33. 33.4 × 9 =
34. 34.14826 × 999 =
35. 35.903 × 999 =
36. 36.193 × 999 =
37. 37.211 × 9 =
38. 38.13846 × 999 =
39. 39.44 × 99 =
40. 40.3779 × 999 =

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