Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 475 · 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. 1.4181 × 999 =
2. 2.2 × 99 =
3. 3.181 × 999 =
4. 4.4 × 9 =
5. 5.464 × 99 =
6. 6.15519 × 999 =
7. 7.3 × 9 =
8. 8.21 × 99 =
9. 9.53 × 99 =
10. 10.18 × 99 =
11. 11.476 × 999 =
12. 12.155 × 9 =
13. 13.501 × 999 =
14. 14.72 × 99 =
15. 15.4 × 9 =
16. 16.661 × 99 =
17. 17.19 × 99 =
18. 18.11 × 99 =
19. 19.868 × 99 =
20. 20.8 × 9 =
21. 21.21 × 999 =
22. 22.3 × 9 =
23. 23.5 × 9 =
24. 24.363 × 999 =
25. 25.83 × 99 =
26. 26.7 × 9 =
27. 27.81 × 9 =
28. 28.66 × 99 =
29. 29.83 × 9 =
30. 30.5 × 9 =
31. 31.26 × 99 =
32. 32.882 × 999 =
33. 33.1177 × 99 =
34. 34.6 × 9 =
35. 35.51 × 9 =
36. 36.7 × 9 =
37. 37.4 × 99 =
38. 38.46 × 99 =
39. 39.9378 × 999 =
40. 40.2155 × 99 =

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