Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 318 · 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. 1.41 × 99 =
2. 2.2492 × 99 =
3. 3.11 × 99 =
4. 4.124 × 9 =
5. 5.7 × 9 =
6. 6.26 × 99 =
7. 7.1661 × 99 =
8. 8.57 × 99 =
9. 9.7 × 99 =
10. 10.11464 × 999 =
11. 11.721 × 999 =
12. 12.1353 × 99 =
13. 13.74 × 99 =
14. 14.189 × 9 =
15. 15.3 × 9 =
16. 16.42 × 9 =
17. 17.504 × 999 =
18. 18.52 × 99 =
19. 19.6 × 9 =
20. 20.2 × 99 =
21. 21.1846 × 99 =
22. 22.6 × 9 =
23. 23.2 × 9 =
24. 24.53 × 99 =
25. 25.7 × 9 =
26. 26.154 × 999 =
27. 27.2531 × 99 =
28. 28.4 × 9 =
29. 29.2 × 9 =
30. 30.2 × 9 =
31. 31.7 × 99 =
32. 32.546 × 999 =
33. 33.39 × 999 =
34. 34.17307 × 999 =
35. 35.5 × 99 =
36. 36.1428 × 99 =
37. 37.252 × 999 =
38. 38.6 × 9 =
39. 39.13 × 99 =
40. 40.11 × 99 =

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