Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 374 · 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. 1.23139 × 999 =
2. 2.463 × 99 =
3. 3.97 × 99 =
4. 4.7 × 9 =
5. 5.48 × 99 =
6. 6.71 × 9 =
7. 7.2 × 9 =
8. 8.1111 × 99 =
9. 9.4 × 99 =
10. 10.3 × 9 =
11. 11.26 × 99 =
12. 12.2 × 9 =
13. 13.3 × 9 =
14. 14.39 × 99 =
15. 15.72 × 99 =
16. 16.2 × 99 =
17. 17.17 × 99 =
18. 18.8 × 9 =
19. 19.993 × 999 =
20. 20.2479 × 99 =
21. 21.3 × 9 =
22. 22.51 × 99 =
23. 23.7001 × 999 =
24. 24.8 × 9 =
25. 25.2081 × 99 =
26. 26.861 × 999 =
27. 27.55 × 99 =
28. 28.703 × 99 =
29. 29.392 × 999 =
30. 30.573 × 999 =
31. 31.94 × 99 =
32. 32.847 × 999 =
33. 33.393 × 999 =
34. 34.8 × 9 =
35. 35.11073 × 999 =
36. 36.5 × 9 =
37. 37.13 × 99 =
38. 38.66 × 99 =
39. 39.2 × 9 =
40. 40.6 × 9 =

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