Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 328 · 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. 1.93 × 99 =
2. 2.28 × 99 =
3. 3.251 × 999 =
4. 4.211 × 9 =
5. 5.64 × 99 =
6. 6.416 × 999 =
7. 7.28931 × 999 =
8. 8.8 × 9 =
9. 9.7 × 99 =
10. 10.41 × 99 =
11. 11.121 × 999 =
12. 12.37 × 99 =
13. 13.652 × 999 =
14. 14.2811 × 99 =
15. 15.6 × 9 =
16. 16.71 × 99 =
17. 17.805 × 999 =
18. 18.412 × 999 =
19. 19.8 × 9 =
20. 20.2 × 9 =
21. 21.733 × 999 =
22. 22.8 × 9 =
23. 23.7 × 9 =
24. 24.227 × 999 =
25. 25.4 × 9 =
26. 26.843 × 99 =
27. 27.414 × 999 =
28. 28.7 × 9 =
29. 29.9 × 99 =
30. 30.11431 × 999 =
31. 31.5 × 9 =
32. 32.8 × 9 =
33. 33.14814 × 999 =
34. 34.521 × 999 =
35. 35.6815 × 999 =
36. 36.82 × 99 =
37. 37.3 × 9 =
38. 38.95 × 999 =
39. 39.6 × 9 =
40. 40.2 × 9 =

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