Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 466 · 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. 1.139 × 9 =
2. 2.6 × 9 =
3. 3.72 × 9 =
4. 4.7 × 9 =
5. 5.541 × 999 =
6. 6.77 × 99 =
7. 7.22568 × 999 =
8. 8.205 × 9 =
9. 9.487 × 999 =
10. 10.339 × 999 =
11. 11.58 × 9 =
12. 12.6 × 9 =
13. 13.6 × 9 =
14. 14.6 × 9 =
15. 15.92 × 99 =
16. 16.4 × 9 =
17. 17.41 × 99 =
18. 18.242 × 9 =
19. 19.3 × 9 =
20. 20.33 × 99 =
21. 21.8 × 9 =
22. 22.5039 × 999 =
23. 23.783 × 999 =
24. 24.16 × 99 =
25. 25.1702 × 99 =
26. 26.2879 × 99 =
27. 27.5 × 9 =
28. 28.2173 × 99 =
29. 29.22115 × 999 =
30. 30.8414 × 999 =
31. 31.242 × 9 =
32. 32.284 × 999 =
33. 33.963 × 999 =
34. 34.5541 × 999 =
35. 35.7 × 9 =
36. 36.6 × 9 =
37. 37.97 × 99 =
38. 38.5 × 9 =
39. 39.7 × 9 =
40. 40.39 × 99 =

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