Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 576 · 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. 1.151 × 9 =
2. 2.843 × 999 =
3. 3.313 × 999 =
4. 4.13143 × 999 =
5. 5.51 × 99 =
6. 6.4 × 9 =
7. 7.183 × 999 =
8. 8.183 × 9 =
9. 9.42 × 99 =
10. 10.1409 × 99 =
11. 11.3 × 9 =
12. 12.7648 × 999 =
13. 13.195 × 9 =
14. 14.3 × 99 =
15. 15.97 × 999 =
16. 16.7 × 9 =
17. 17.7 × 9 =
18. 18.79 × 999 =
19. 19.14 × 999 =
20. 20.23 × 99 =
21. 21.206 × 9 =
22. 22.14606 × 999 =
23. 23.2 × 9 =
24. 24.2 × 9 =
25. 25.67 × 99 =
26. 26.23851 × 999 =
27. 27.2 × 9 =
28. 28.3 × 9 =
29. 29.19545 × 999 =
30. 30.885 × 999 =
31. 31.21 × 99 =
32. 32.72 × 999 =
33. 33.32 × 9 =
34. 34.19 × 99 =
35. 35.21174 × 999 =
36. 36.39 × 99 =
37. 37.84 × 9 =
38. 38.539 × 999 =
39. 39.7 × 9 =
40. 40.4 × 9 =

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