Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 351 · 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. 1.11441 × 999 =
2. 2.78 × 99 =
3. 3.94 × 99 =
4. 4.129 × 9 =
5. 5.499 × 999 =
6. 6.31 × 99 =
7. 7.43 × 99 =
8. 8.2031 × 99 =
9. 9.9891 × 999 =
10. 10.27 × 999 =
11. 11.173 × 999 =
12. 12.86 × 9 =
13. 13.43 × 99 =
14. 14.243 × 9 =
15. 15.6 × 9 =
16. 16.211 × 999 =
17. 17.51 × 99 =
18. 18.5 × 9 =
19. 19.25924 × 999 =
20. 20.5 × 9 =
21. 21.77 × 99 =
22. 22.1199 × 99 =
23. 23.38 × 99 =
24. 24.29 × 99 =
25. 25.971 × 999 =
26. 26.507 × 999 =
27. 27.1011 × 99 =
28. 28.7 × 99 =
29. 29.737 × 99 =
30. 30.135 × 9 =
31. 31.4 × 9 =
32. 32.79 × 99 =
33. 33.31 × 99 =
34. 34.262 × 99 =
35. 35.84 × 99 =
36. 36.2 × 99 =
37. 37.7 × 9 =
38. 38.776 × 999 =
39. 39.67 × 99 =
40. 40.3 × 9 =

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