Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 347 · 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. 1.118 × 9 =
2. 2.2 × 9 =
3. 3.104 × 9 =
4. 4.392 × 999 =
5. 5.5 × 9 =
6. 6.2721 × 99 =
7. 7.55 × 99 =
8. 8.11802 × 999 =
9. 9.123 × 9 =
10. 10.5214 × 999 =
11. 11.2001 × 99 =
12. 12.2 × 9 =
13. 13.926 × 999 =
14. 14.11 × 999 =
15. 15.123 × 999 =
16. 16.22 × 99 =
17. 17.797 × 999 =
18. 18.8 × 9 =
19. 19.11 × 99 =
20. 20.971 × 99 =
21. 21.3 × 9 =
22. 22.38 × 99 =
23. 23.117 × 9 =
24. 24.211 × 9 =
25. 25.7 × 9 =
26. 26.212 × 9 =
27. 27.6 × 9 =
28. 28.39 × 9 =
29. 29.4 × 9 =
30. 30.93 × 99 =
31. 31.6 × 9 =
32. 32.126 × 9 =
33. 33.523 × 99 =
34. 34.119 × 9 =
35. 35.281 × 999 =
36. 36.12 × 99 =
37. 37.6 × 9 =
38. 38.24232 × 999 =
39. 39.107 × 9 =
40. 40.21 × 999 =

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