Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 558 · 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. 1.3 × 9 =
2. 2.16635 × 999 =
3. 3.7 × 9 =
4. 4.66 × 99 =
5. 5.655 × 999 =
6. 6.34 × 999 =
7. 7.62 × 99 =
8. 8.197 × 9 =
9. 9.2671 × 99 =
10. 10.116 × 999 =
11. 11.2 × 9 =
12. 12.928 × 999 =
13. 13.9554 × 999 =
14. 14.6 × 99 =
15. 15.7 × 999 =
16. 16.192 × 9 =
17. 17.8 × 99 =
18. 18.28221 × 999 =
19. 19.4 × 9 =
20. 20.7 × 9 =
21. 21.3 × 9 =
22. 22.6 × 9 =
23. 23.19 × 99 =
24. 24.57 × 9 =
25. 25.92 × 99 =
26. 26.777 × 999 =
27. 27.7 × 99 =
28. 28.2 × 9 =
29. 29.69 × 99 =
30. 30.673 × 999 =
31. 31.7 × 9 =
32. 32.91 × 9 =
33. 33.63 × 99 =
34. 34.51 × 99 =
35. 35.3 × 9 =
36. 36.13 × 99 =
37. 37.904 × 999 =
38. 38.73 × 99 =
39. 39.6 × 9 =
40. 40.3612 × 999 =

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