Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 43 · 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. 1.25 × 99 =
2. 2.2 × 9 =
3. 3.92 × 99 =
4. 4.79 × 99 =
5. 5.2 × 9 =
6. 6.429 × 999 =
7. 7.599 × 99 =
8. 8.78 × 99 =
9. 9.641 × 999 =
10. 10.855 × 999 =
11. 11.4292 × 999 =
12. 12.182 × 9 =
13. 13.66 × 99 =
14. 14.71 × 99 =
15. 15.88 × 99 =
16. 16.6 × 9 =
17. 17.31 × 99 =
18. 18.38 × 99 =
19. 19.28821 × 999 =
20. 20.1681 × 99 =
21. 21.125 × 99 =
22. 22.1793 × 99 =
23. 23.13 × 99 =
24. 24.54 × 99 =
25. 25.521 × 999 =
26. 26.26741 × 999 =
27. 27.6 × 9 =
28. 28.5 × 9 =
29. 29.7 × 9 =
30. 30.963 × 999 =
31. 31.5 × 9 =
32. 32.2684 × 99 =
33. 33.961 × 999 =
34. 34.267 × 9 =
35. 35.8 × 9 =
36. 36.2 × 9 =
37. 37.352 × 99 =
38. 38.35 × 99 =
39. 39.7 × 9 =
40. 40.4 × 9 =

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