Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 22 · 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. 1.725 × 999 =
2. 2.48 × 99 =
3. 3.1374 × 999 =
4. 4.65 × 99 =
5. 5.4 × 9 =
6. 6.22 × 999 =
7. 7.28864 × 999 =
8. 8.566 × 999 =
9. 9.171 × 9 =
10. 10.4 × 9 =
11. 11.272 × 999 =
12. 12.3645 × 999 =
13. 13.3 × 9 =
14. 14.8 × 9 =
15. 15.855 × 999 =
16. 16.1021 × 99 =
17. 17.91 × 99 =
18. 18.2 × 99 =
19. 19.4 × 9 =
20. 20.221 × 999 =
21. 21.483 × 999 =
22. 22.29 × 99 =
23. 23.6589 × 999 =
24. 24.212 × 9 =
25. 25.56 × 9 =
26. 26.124 × 9 =
27. 27.22 × 99 =
28. 28.31 × 99 =
29. 29.861 × 999 =
30. 30.81 × 99 =
31. 31.805 × 999 =
32. 32.5 × 9 =
33. 33.83 × 999 =
34. 34.56 × 99 =
35. 35.121 × 9 =
36. 36.195 × 999 =
37. 37.763 × 999 =
38. 38.7 × 99 =
39. 39.34 × 99 =
40. 40.255 × 999 =

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