Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 441 · 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. 1.882 × 99 =
2. 2.8 × 9 =
3. 3.232 × 999 =
4. 4.4 × 9 =
5. 5.9 × 999 =
6. 6.31 × 99 =
7. 7.4 × 9 =
8. 8.57 × 99 =
9. 9.3 × 9 =
10. 10.33 × 99 =
11. 11.433 × 999 =
12. 12.23 × 99 =
13. 13.8 × 9 =
14. 14.7 × 9 =
15. 15.93 × 999 =
16. 16.2822 × 99 =
17. 17.2375 × 99 =
18. 18.6 × 9 =
19. 19.925 × 99 =
20. 20.2 × 9 =
21. 21.6 × 9 =
22. 22.1576 × 99 =
23. 23.44 × 99 =
24. 24.104 × 9 =
25. 25.2 × 9 =
26. 26.7175 × 999 =
27. 27.364 × 999 =
28. 28.73 × 99 =
29. 29.71 × 999 =
30. 30.467 × 999 =
31. 31.78 × 9 =
32. 32.97 × 999 =
33. 33.76 × 99 =
34. 34.4 × 9 =
35. 35.3 × 9 =
36. 36.3 × 9 =
37. 37.356 × 999 =
38. 38.22703 × 999 =
39. 39.4 × 9 =
40. 40.564 × 99 =

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