Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 222 · 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. 1.82 × 9 =
2. 2.6 × 9 =
3. 3.18 × 99 =
4. 4.174 × 999 =
5. 5.8 × 9 =
6. 6.178 × 9 =
7. 7.7 × 9 =
8. 8.788 × 999 =
9. 9.29283 × 999 =
10. 10.49 × 99 =
11. 11.3 × 9 =
12. 12.924 × 99 =
13. 13.59 × 99 =
14. 14.41 × 99 =
15. 15.25784 × 999 =
16. 16.247 × 9 =
17. 17.3 × 9 =
18. 18.218 × 9 =
19. 19.3 × 9 =
20. 20.71 × 99 =
21. 21.6 × 9 =
22. 22.2 × 9 =
23. 23.3 × 9 =
24. 24.652 × 999 =
25. 25.91 × 9 =
26. 26.23 × 99 =
27. 27.9 × 99 =
28. 28.85 × 99 =
29. 29.989 × 999 =
30. 30.388 × 999 =
31. 31.649 × 999 =
32. 32.75 × 99 =
33. 33.26281 × 999 =
34. 34.78 × 99 =
35. 35.806 × 999 =
36. 36.777 × 99 =
37. 37.2013 × 99 =
38. 38.779 × 999 =
39. 39.51 × 99 =
40. 40.4 × 9 =

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