Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 354 · 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. 1.27 × 99 =
2. 2.11 × 99 =
3. 3.6 × 9 =
4. 4.71 × 99 =
5. 5.671 × 999 =
6. 6.296 × 999 =
7. 7.72 × 99 =
8. 8.41 × 99 =
9. 9.8 × 99 =
10. 10.138 × 9 =
11. 11.11 × 99 =
12. 12.85 × 99 =
13. 13.937 × 99 =
14. 14.18575 × 999 =
15. 15.5 × 9 =
16. 16.959 × 999 =
17. 17.8 × 9 =
18. 18.5 × 9 =
19. 19.5 × 9 =
20. 20.1808 × 99 =
21. 21.7 × 9 =
22. 22.222 × 9 =
23. 23.2 × 9 =
24. 24.568 × 99 =
25. 25.13 × 99 =
26. 26.232 × 9 =
27. 27.16 × 99 =
28. 28.144 × 999 =
29. 29.8 × 9 =
30. 30.26641 × 999 =
31. 31.21 × 99 =
32. 32.649 × 999 =
33. 33.2 × 9 =
34. 34.466 × 999 =
35. 35.617 × 999 =
36. 36.51 × 99 =
37. 37.41 × 99 =
38. 38.466 × 999 =
39. 39.894 × 999 =
40. 40.172 × 999 =

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