Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 186 · 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. 1.9467 × 999 =
2. 2.91 × 99 =
3. 3.434 × 999 =
4. 4.5 × 9 =
5. 5.165 × 999 =
6. 6.749 × 999 =
7. 7.142 × 99 =
8. 8.4961 × 999 =
9. 9.2489 × 99 =
10. 10.7 × 9 =
11. 11.423 × 99 =
12. 12.5 × 9 =
13. 13.581 × 999 =
14. 14.844 × 999 =
15. 15.676 × 999 =
16. 16.12381 × 999 =
17. 17.221 × 999 =
18. 18.197 × 9 =
19. 19.464 × 999 =
20. 20.77 × 99 =
21. 21.98 × 99 =
22. 22.6 × 9 =
23. 23.8 × 9 =
24. 24.3273 × 999 =
25. 25.4 × 9 =
26. 26.4 × 9 =
27. 27.8999 × 999 =
28. 28.597 × 999 =
29. 29.1981 × 99 =
30. 30.17 × 99 =
31. 31.6 × 99 =
32. 32.42 × 99 =
33. 33.23347 × 999 =
34. 34.64 × 9 =
35. 35.13 × 99 =
36. 36.59 × 99 =
37. 37.687 × 999 =
38. 38.444 × 999 =
39. 39.701 × 999 =
40. 40.8 × 9 =

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