Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 585 · 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. 1.92 × 9 =
2. 2.611 × 999 =
3. 3.7 × 9 =
4. 4.598 × 999 =
5. 5.4 × 9 =
6. 6.9471 × 999 =
7. 7.1664 × 99 =
8. 8.26 × 99 =
9. 9.209 × 9 =
10. 10.2 × 9 =
11. 11.267 × 9 =
12. 12.94 × 99 =
13. 13.7 × 99 =
14. 14.41 × 999 =
15. 15.63 × 99 =
16. 16.2892 × 99 =
17. 17.31 × 999 =
18. 18.5 × 9 =
19. 19.35 × 99 =
20. 20.15 × 99 =
21. 21.25 × 99 =
22. 22.929 × 999 =
23. 23.2256 × 99 =
24. 24.17804 × 999 =
25. 25.935 × 999 =
26. 26.3 × 9 =
27. 27.661 × 999 =
28. 28.67 × 99 =
29. 29.26107 × 999 =
30. 30.7 × 9 =
31. 31.75 × 99 =
32. 32.29 × 99 =
33. 33.64 × 99 =
34. 34.771 × 99 =
35. 35.41 × 99 =
36. 36.85 × 99 =
37. 37.96 × 999 =
38. 38.82 × 99 =
39. 39.32 × 99 =
40. 40.1654 × 99 =

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