Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 535 · 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. 1.183 × 9 =
2. 2.15 × 99 =
3. 3.203 × 999 =
4. 4.2 × 9 =
5. 5.11 × 99 =
6. 6.7 × 9 =
7. 7.166 × 999 =
8. 8.5 × 9 =
9. 9.381 × 999 =
10. 10.5 × 9 =
11. 11.41 × 99 =
12. 12.7 × 9 =
13. 13.569 × 999 =
14. 14.291 × 999 =
15. 15.10674 × 999 =
16. 16.269 × 9 =
17. 17.2 × 9 =
18. 18.7 × 9 =
19. 19.26 × 99 =
20. 20.81 × 99 =
21. 21.1319 × 99 =
22. 22.862 × 99 =
23. 23.21 × 99 =
24. 24.7 × 999 =
25. 25.2 × 99 =
26. 26.11 × 99 =
27. 27.126 × 999 =
28. 28.8971 × 999 =
29. 29.1881 × 99 =
30. 30.176 × 9 =
31. 31.337 × 999 =
32. 32.6985 × 999 =
33. 33.65 × 99 =
34. 34.21 × 99 =
35. 35.334 × 999 =
36. 36.41 × 99 =
37. 37.821 × 999 =
38. 38.698 × 999 =
39. 39.7 × 9 =
40. 40.3 × 9 =

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