Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 350 · 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. 1.2424 × 99 =
2. 2.26 × 99 =
3. 3.64 × 9 =
4. 4.2084 × 99 =
5. 5.984 × 999 =
6. 6.895 × 999 =
7. 7.3 × 9 =
8. 8.2557 × 99 =
9. 9.2 × 9 =
10. 10.201 × 9 =
11. 11.27563 × 999 =
12. 12.41 × 99 =
13. 13.3 × 9 =
14. 14.71 × 99 =
15. 15.2874 × 99 =
16. 16.6 × 99 =
17. 17.1805 × 99 =
18. 18.15 × 99 =
19. 19.19011 × 999 =
20. 20.2221 × 99 =
21. 21.639 × 999 =
22. 22.161 × 9 =
23. 23.36 × 999 =
24. 24.613 × 999 =
25. 25.2083 × 99 =
26. 26.773 × 999 =
27. 27.8 × 9 =
28. 28.78 × 99 =
29. 29.5 × 9 =
30. 30.77 × 99 =
31. 31.8 × 9 =
32. 32.4748 × 999 =
33. 33.357 × 999 =
34. 34.43 × 99 =
35. 35.207 × 999 =
36. 36.18331 × 999 =
37. 37.81 × 99 =
38. 38.2 × 9 =
39. 39.7 × 9 =
40. 40.49 × 9 =

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