Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 132 · 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. 1.123 × 999 =
2. 2.119 × 999 =
3. 3.977 × 999 =
4. 4.2 × 9 =
5. 5.31 × 9 =
6. 6.114 × 999 =
7. 7.89 × 99 =
8. 8.215 × 9 =
9. 9.191 × 99 =
10. 10.288 × 999 =
11. 11.3 × 9 =
12. 12.994 × 999 =
13. 13.16 × 99 =
14. 14.154 × 9 =
15. 15.12406 × 999 =
16. 16.45 × 99 =
17. 17.25 × 99 =
18. 18.461 × 999 =
19. 19.49 × 99 =
20. 20.48 × 9 =
21. 21.16 × 99 =
22. 22.28593 × 999 =
23. 23.21 × 99 =
24. 24.7 × 9 =
25. 25.2884 × 99 =
26. 26.452 × 999 =
27. 27.1237 × 99 =
28. 28.223 × 9 =
29. 29.7 × 9 =
30. 30.38 × 99 =
31. 31.8 × 9 =
32. 32.13 × 99 =
33. 33.1696 × 99 =
34. 34.5 × 9 =
35. 35.8 × 9 =
36. 36.886 × 999 =
37. 37.729 × 999 =
38. 38.2 × 9 =
39. 39.4 × 9 =
40. 40.5 × 9 =

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