Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 205 · 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. 1.8 × 9 =
2. 2.932 × 99 =
3. 3.18 × 99 =
4. 4.5 × 99 =
5. 5.18036 × 999 =
6. 6.2 × 9 =
7. 7.4 × 9 =
8. 8.83 × 99 =
9. 9.3 × 9 =
10. 10.56 × 99 =
11. 11.945 × 999 =
12. 12.7 × 99 =
13. 13.20376 × 999 =
14. 14.158 × 9 =
15. 15.82 × 99 =
16. 16.15 × 99 =
17. 17.866 × 999 =
18. 18.239 × 999 =
19. 19.699 × 999 =
20. 20.2 × 9 =
21. 21.454 × 999 =
22. 22.4026 × 999 =
23. 23.8 × 9 =
24. 24.59 × 99 =
25. 25.3 × 9 =
26. 26.3 × 9 =
27. 27.11 × 99 =
28. 28.2103 × 99 =
29. 29.5 × 9 =
30. 30.21353 × 999 =
31. 31.3 × 99 =
32. 32.76 × 9 =
33. 33.464 × 99 =
34. 34.4 × 9 =
35. 35.889 × 999 =
36. 36.46 × 99 =
37. 37.5 × 9 =
38. 38.39 × 9 =
39. 39.24 × 9 =
40. 40.963 × 999 =

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