Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 283 · 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. 1.122 × 999 =
2. 2.356 × 999 =
3. 3.2 × 9 =
4. 4.11026 × 999 =
5. 5.347 × 999 =
6. 6.725 × 99 =
7. 7.27 × 99 =
8. 8.6 × 9 =
9. 9.7 × 9 =
10. 10.577 × 999 =
11. 11.859 × 999 =
12. 12.978 × 999 =
13. 13.57 × 99 =
14. 14.2 × 9 =
15. 15.35 × 99 =
16. 16.14551 × 999 =
17. 17.6 × 9 =
18. 18.185 × 9 =
19. 19.729 × 99 =
20. 20.31 × 99 =
21. 21.2 × 9 =
22. 22.307 × 99 =
23. 23.293 × 999 =
24. 24.123 × 9 =
25. 25.53 × 99 =
26. 26.29 × 99 =
27. 27.85 × 99 =
28. 28.499 × 99 =
29. 29.331 × 999 =
30. 30.6 × 9 =
31. 31.14 × 99 =
32. 32.176 × 999 =
33. 33.7 × 9 =
34. 34.24129 × 999 =
35. 35.4 × 9 =
36. 36.73 × 99 =
37. 37.19 × 9 =
38. 38.5 × 99 =
39. 39.257 × 999 =
40. 40.7 × 9 =

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