Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 92 · 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. 1.2543 × 99 =
2. 2.5 × 9 =
3. 3.2 × 9 =
4. 4.5 × 9 =
5. 5.6 × 9 =
6. 6.2 × 9 =
7. 7.768 × 999 =
8. 8.7965 × 999 =
9. 9.2776 × 99 =
10. 10.2702 × 99 =
11. 11.2159 × 99 =
12. 12.746 × 99 =
13. 13.2 × 9 =
14. 14.3 × 9 =
15. 15.71 × 9 =
16. 16.2 × 9 =
17. 17.97 × 99 =
18. 18.177 × 9 =
19. 19.98 × 99 =
20. 20.194 × 999 =
21. 21.801 × 999 =
22. 22.544 × 999 =
23. 23.25 × 99 =
24. 24.71 × 9 =
25. 25.2 × 9 =
26. 26.1047 × 99 =
27. 27.916 × 999 =
28. 28.2899 × 99 =
29. 29.5 × 9 =
30. 30.2 × 9 =
31. 31.8 × 9 =
32. 32.5 × 9 =
33. 33.199 × 9 =
34. 34.2882 × 99 =
35. 35.3 × 9 =
36. 36.5 × 9 =
37. 37.6 × 9 =
38. 38.6 × 9 =
39. 39.87 × 99 =
40. 40.56 × 99 =

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