Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 406 · 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. 2.5 × 9 =
3. 3.11183 × 999 =
4. 4.28 × 99 =
5. 5.42 × 9 =
6. 6.2577 × 99 =
7. 7.627 × 999 =
8. 8.261 × 999 =
9. 9.5 × 9 =
10. 10.3 × 9 =
11. 11.47 × 99 =
12. 12.3 × 9 =
13. 13.554 × 999 =
14. 14.3 × 9 =
15. 15.2007 × 99 =
16. 16.6173 × 999 =
17. 17.448 × 999 =
18. 18.44 × 99 =
19. 19.482 × 999 =
20. 20.79 × 9 =
21. 21.1711 × 99 =
22. 22.768 × 999 =
23. 23.92 × 99 =
24. 24.28196 × 999 =
25. 25.74 × 999 =
26. 26.21 × 99 =
27. 27.5189 × 999 =
28. 28.3 × 9 =
29. 29.6 × 9 =
30. 30.2 × 9 =
31. 31.56 × 99 =
32. 32.16 × 99 =
33. 33.206 × 999 =
34. 34.755 × 999 =
35. 35.29094 × 999 =
36. 36.121 × 9 =
37. 37.53 × 99 =
38. 38.1194 × 99 =
39. 39.62 × 9 =
40. 40.255 × 999 =

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