Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 432 · 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. 1.211 × 999 =
2. 2.23 × 99 =
3. 3.84 × 99 =
4. 4.5 × 9 =
5. 5.21 × 99 =
6. 6.191 × 9 =
7. 7.2278 × 99 =
8. 8.4 × 9 =
9. 9.8 × 9 =
10. 10.5 × 9 =
11. 11.7 × 9 =
12. 12.71 × 99 =
13. 13.39 × 999 =
14. 14.2691 × 99 =
15. 15.2264 × 99 =
16. 16.642 × 999 =
17. 17.886 × 999 =
18. 18.25 × 99 =
19. 19.31 × 99 =
20. 20.22236 × 999 =
21. 21.41 × 99 =
22. 22.324 × 999 =
23. 23.127 × 9 =
24. 24.265 × 999 =
25. 25.862 × 999 =
26. 26.8 × 9 =
27. 27.481 × 999 =
28. 28.36 × 99 =
29. 29.195 × 9 =
30. 30.2 × 9 =
31. 31.5 × 9 =
32. 32.139 × 9 =
33. 33.55 × 99 =
34. 34.338 × 999 =
35. 35.134 × 9 =
36. 36.162 × 9 =
37. 37.485 × 999 =
38. 38.972 × 999 =
39. 39.7 × 9 =
40. 40.8 × 9 =

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