Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 192 · 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. 1.2653 × 99 =
2. 2.2 × 9 =
3. 3.4 × 99 =
4. 4.51 × 99 =
5. 5.1378 × 99 =
6. 6.513 × 999 =
7. 7.726 × 999 =
8. 8.72 × 99 =
9. 9.6 × 9 =
10. 10.1583 × 99 =
11. 11.1159 × 99 =
12. 12.51 × 99 =
13. 13.282 × 999 =
14. 14.247 × 9 =
15. 15.996 × 999 =
16. 16.6 × 9 =
17. 17.1471 × 99 =
18. 18.529 × 999 =
19. 19.8 × 9 =
20. 20.6 × 9 =
21. 21.3 × 9 =
22. 22.29079 × 999 =
23. 23.1877 × 99 =
24. 24.466 × 999 =
25. 25.308 × 999 =
26. 26.7 × 9 =
27. 27.829 × 999 =
28. 28.2 × 9 =
29. 29.177 × 9 =
30. 30.126 × 999 =
31. 31.27 × 99 =
32. 32.6 × 9 =
33. 33.4 × 9 =
34. 34.5 × 9 =
35. 35.543 × 999 =
36. 36.51 × 99 =
37. 37.522 × 999 =
38. 38.691 × 999 =
39. 39.3 × 9 =
40. 40.4 × 9 =

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