Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 428 · 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. 1.2735 × 999 =
2. 2.26 × 99 =
3. 3.281 × 999 =
4. 4.78 × 99 =
5. 5.7 × 9 =
6. 6.264 × 999 =
7. 7.18 × 999 =
8. 8.568 × 999 =
9. 9.251 × 999 =
10. 10.2 × 99 =
11. 11.22 × 99 =
12. 12.21 × 99 =
13. 13.3 × 9 =
14. 14.4 × 9 =
15. 15.6 × 9 =
16. 16.165 × 999 =
17. 17.37 × 99 =
18. 18.3 × 9 =
19. 19.7 × 9 =
20. 20.7 × 9 =
21. 21.82 × 99 =
22. 22.75 × 99 =
23. 23.2 × 9 =
24. 24.6584 × 999 =
25. 25.22 × 99 =
26. 26.8 × 99 =
27. 27.6 × 9 =
28. 28.722 × 99 =
29. 29.3 × 9 =
30. 30.232 × 9 =
31. 31.8 × 9 =
32. 32.97 × 99 =
33. 33.6 × 9 =
34. 34.25459 × 999 =
35. 35.35 × 9 =
36. 36.72 × 9 =
37. 37.237 × 999 =
38. 38.223 × 999 =
39. 39.29351 × 999 =
40. 40.4 × 9 =

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