Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 314 · 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. 1.38 × 99 =
2. 2.24 × 999 =
3. 3.8777 × 999 =
4. 4.16 × 99 =
5. 5.2 × 9 =
6. 6.447 × 999 =
7. 7.11 × 99 =
8. 8.32 × 999 =
9. 9.3 × 9 =
10. 10.701 × 99 =
11. 11.264 × 9 =
12. 12.261 × 9 =
13. 13.891 × 999 =
14. 14.2 × 9 =
15. 15.25 × 99 =
16. 16.54 × 99 =
17. 17.6 × 9 =
18. 18.227 × 9 =
19. 19.42 × 99 =
20. 20.39 × 99 =
21. 21.36 × 99 =
22. 22.172 × 99 =
23. 23.42 × 99 =
24. 24.19 × 9 =
25. 25.8 × 9 =
26. 26.118 × 999 =
27. 27.103 × 9 =
28. 28.63 × 99 =
29. 29.4 × 9 =
30. 30.861 × 999 =
31. 31.24 × 99 =
32. 32.2 × 9 =
33. 33.2 × 9 =
34. 34.4291 × 999 =
35. 35.471 × 999 =
36. 36.186 × 9 =
37. 37.223 × 9 =
38. 38.17971 × 999 =
39. 39.64 × 99 =
40. 40.4 × 9 =

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