Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 967 · 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. 1.84 × 99 =
2. 2.4 × 9 =
3. 3.81 × 99 =
4. 4.5 × 9 =
5. 5.55 × 99 =
6. 6.3 × 99 =
7. 7.6 × 9 =
8. 8.23252 × 999 =
9. 9.72 × 99 =
10. 10.257 × 999 =
11. 11.2 × 9 =
12. 12.1365 × 99 =
13. 13.5 × 9 =
14. 14.157 × 99 =
15. 15.7 × 9 =
16. 16.71 × 99 =
17. 17.8 × 9 =
18. 18.3 × 9 =
19. 19.14 × 99 =
20. 20.841 × 999 =
21. 21.98 × 99 =
22. 22.295 × 999 =
23. 23.18 × 99 =
24. 24.977 × 99 =
25. 25.654 × 999 =
26. 26.533 × 999 =
27. 27.417 × 999 =
28. 28.6 × 99 =
29. 29.44 × 99 =
30. 30.147 × 9 =
31. 31.5 × 9 =
32. 32.6 × 9 =
33. 33.2 × 9 =
34. 34.46 × 99 =
35. 35.6 × 9 =
36. 36.7 × 9 =
37. 37.4 × 9 =
38. 38.91 × 99 =
39. 39.1717 × 99 =
40. 40.31 × 99 =

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