Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 378 · 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. 1.98 × 99 =
2. 2.47 × 99 =
3. 3.728 × 999 =
4. 4.2961 × 99 =
5. 5.44 × 99 =
6. 6.11994 × 999 =
7. 7.48 × 999 =
8. 8.21 × 99 =
9. 9.5 × 9 =
10. 10.5 × 9 =
11. 11.56 × 99 =
12. 12.4 × 9 =
13. 13.94 × 99 =
14. 14.79 × 99 =
15. 15.1529 × 99 =
16. 16.146 × 9 =
17. 17.188 × 9 =
18. 18.6 × 9 =
19. 19.378 × 99 =
20. 20.269 × 999 =
21. 21.16 × 99 =
22. 22.2 × 999 =
23. 23.694 × 999 =
24. 24.47 × 99 =
25. 25.221 × 9 =
26. 26.584 × 999 =
27. 27.4 × 9 =
28. 28.13 × 99 =
29. 29.161 × 9 =
30. 30.107 × 9 =
31. 31.584 × 999 =
32. 32.1672 × 99 =
33. 33.91 × 99 =
34. 34.2 × 9 =
35. 35.1228 × 99 =
36. 36.89 × 99 =
37. 37.911 × 999 =
38. 38.29 × 99 =
39. 39.181 × 9 =
40. 40.75 × 99 =

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