Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 758 · 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. 1.4 × 9 =
2. 2.829 × 99 =
3. 3.631 × 999 =
4. 4.1812 × 99 =
5. 5.3 × 9 =
6. 6.377 × 999 =
7. 7.6 × 9 =
8. 8.2 × 9 =
9. 9.6 × 9 =
10. 10.3 × 9 =
11. 11.19 × 99 =
12. 12.259 × 9 =
13. 13.458 × 999 =
14. 14.1654 × 99 =
15. 15.46 × 99 =
16. 16.6 × 9 =
17. 17.3 × 9 =
18. 18.134 × 9 =
19. 19.504 × 999 =
20. 20.36 × 99 =
21. 21.222 × 999 =
22. 22.2613 × 99 =
23. 23.6 × 9 =
24. 24.821 × 999 =
25. 25.69 × 99 =
26. 26.4 × 9 =
27. 27.1602 × 99 =
28. 28.7 × 9 =
29. 29.5 × 9 =
30. 30.66 × 99 =
31. 31.507 × 999 =
32. 32.16 × 99 =
33. 33.323 × 999 =
34. 34.81 × 99 =
35. 35.905 × 99 =
36. 36.6 × 9 =
37. 37.11326 × 999 =
38. 38.31 × 99 =
39. 39.351 × 999 =
40. 40.10838 × 999 =

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