Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 376 · 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. 1.5701 × 999 =
2. 2.27 × 99 =
3. 3.8 × 9 =
4. 4.22 × 99 =
5. 5.2 × 9 =
6. 6.65 × 99 =
7. 7.72 × 99 =
8. 8.14424 × 999 =
9. 9.48 × 99 =
10. 10.7 × 9 =
11. 11.20361 × 999 =
12. 12.192 × 9 =
13. 13.34 × 99 =
14. 14.201 × 999 =
15. 15.2 × 9 =
16. 16.31 × 99 =
17. 17.6 × 9 =
18. 18.3 × 9 =
19. 19.5 × 9 =
20. 20.2266 × 99 =
21. 21.6 × 9 =
22. 22.46 × 99 =
23. 23.69 × 99 =
24. 24.224 × 99 =
25. 25.406 × 99 =
26. 26.68 × 99 =
27. 27.937 × 999 =
28. 28.523 × 999 =
29. 29.48 × 99 =
30. 30.63 × 9 =
31. 31.906 × 999 =
32. 32.3775 × 999 =
33. 33.2801 × 99 =
34. 34.2 × 9 =
35. 35.61 × 99 =
36. 36.328 × 999 =
37. 37.185 × 9 =
38. 38.6 × 9 =
39. 39.101 × 9 =
40. 40.511 × 999 =

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