Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 711 · 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. 1.255 × 999 =
2. 2.1855 × 99 =
3. 3.61 × 99 =
4. 4.41 × 9 =
5. 5.2914 × 99 =
6. 6.1766 × 99 =
7. 7.78 × 99 =
8. 8.97 × 9 =
9. 9.7 × 9 =
10. 10.1991 × 99 =
11. 11.21934 × 999 =
12. 12.439 × 999 =
13. 13.2 × 9 =
14. 14.3 × 9 =
15. 15.11 × 99 =
16. 16.7 × 99 =
17. 17.28 × 99 =
18. 18.266 × 9 =
19. 19.8 × 9 =
20. 20.617 × 99 =
21. 21.272 × 999 =
22. 22.6 × 9 =
23. 23.4 × 9 =
24. 24.301 × 999 =
25. 25.5 × 9 =
26. 26.252 × 999 =
27. 27.162 × 9 =
28. 28.26 × 99 =
29. 29.4 × 9 =
30. 30.24 × 99 =
31. 31.146 × 999 =
32. 32.82 × 99 =
33. 33.53 × 99 =
34. 34.28 × 9 =
35. 35.2704 × 99 =
36. 36.82 × 9 =
37. 37.242 × 999 =
38. 38.14018 × 999 =
39. 39.84 × 99 =
40. 40.1789 × 99 =

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