Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 445 · 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. 1.793 × 999 =
2. 2.6 × 9 =
3. 3.277 × 999 =
4. 4.3 × 9 =
5. 5.4541 × 999 =
6. 6.19 × 99 =
7. 7.16749 × 999 =
8. 8.6043 × 999 =
9. 9.11524 × 999 =
10. 10.426 × 999 =
11. 11.6 × 9 =
12. 12.8 × 9 =
13. 13.3 × 9 =
14. 14.6 × 9 =
15. 15.37 × 99 =
16. 16.8 × 99 =
17. 17.309 × 999 =
18. 18.1073 × 99 =
19. 19.851 × 999 =
20. 20.42 × 99 =
21. 21.6 × 9 =
22. 22.24 × 99 =
23. 23.22941 × 999 =
24. 24.53 × 9 =
25. 25.161 × 999 =
26. 26.898 × 999 =
27. 27.8 × 9 =
28. 28.5 × 9 =
29. 29.94 × 99 =
30. 30.15093 × 999 =
31. 31.15 × 99 =
32. 32.3 × 9 =
33. 33.642 × 999 =
34. 34.11 × 9 =
35. 35.49 × 99 =
36. 36.88 × 99 =
37. 37.67 × 99 =
38. 38.42 × 9 =
39. 39.7 × 9 =
40. 40.793 × 999 =

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