Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 41 · 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. 1.2 × 9 =
2. 2.5 × 99 =
3. 3.161 × 999 =
4. 4.3 × 99 =
5. 5.6 × 9 =
6. 6.257 × 999 =
7. 7.8 × 9 =
8. 8.721 × 99 =
9. 9.15 × 99 =
10. 10.182 × 999 =
11. 11.91 × 99 =
12. 12.3 × 9 =
13. 13.31 × 99 =
14. 14.2 × 9 =
15. 15.976 × 999 =
16. 16.7 × 9 =
17. 17.204 × 9 =
18. 18.7 × 9 =
19. 19.38 × 99 =
20. 20.92 × 99 =
21. 21.7 × 9 =
22. 22.12462 × 999 =
23. 23.255 × 999 =
24. 24.6 × 9 =
25. 25.29 × 99 =
26. 26.2331 × 99 =
27. 27.7 × 9 =
28. 28.341 × 999 =
29. 29.4 × 9 =
30. 30.4 × 9 =
31. 31.8 × 9 =
32. 32.36 × 99 =
33. 33.269 × 9 =
34. 34.43 × 9 =
35. 35.2045 × 99 =
36. 36.243 × 999 =
37. 37.11919 × 999 =
38. 38.28649 × 999 =
39. 39.83 × 99 =
40. 40.62 × 999 =

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