Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 976 · 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. 1.38 × 99 =
2. 2.69 × 99 =
3. 3.81 × 99 =
4. 4.66 × 999 =
5. 5.8159 × 999 =
6. 6.4 × 9 =
7. 7.72 × 999 =
8. 8.3 × 9 =
9. 9.53 × 99 =
10. 10.35 × 99 =
11. 11.522 × 99 =
12. 12.18827 × 999 =
13. 13.5 × 9 =
14. 14.2016 × 99 =
15. 15.6 × 9 =
16. 16.22 × 999 =
17. 17.231 × 999 =
18. 18.2259 × 99 =
19. 19.827 × 999 =
20. 20.912 × 999 =
21. 21.63 × 99 =
22. 22.8 × 9 =
23. 23.944 × 999 =
24. 24.4 × 9 =
25. 25.1991 × 99 =
26. 26.763 × 999 =
27. 27.18141 × 999 =
28. 28.224 × 999 =
29. 29.12 × 99 =
30. 30.8 × 9 =
31. 31.157 × 999 =
32. 32.419 × 999 =
33. 33.592 × 99 =
34. 34.89 × 99 =
35. 35.2 × 99 =
36. 36.86 × 99 =
37. 37.707 × 999 =
38. 38.7 × 9 =
39. 39.2 × 9 =
40. 40.152 × 9 =

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