Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 121 · 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. 1.4 × 9 =
2. 2.2 × 9 =
3. 3.64 × 99 =
4. 4.829 × 999 =
5. 5.41 × 99 =
6. 6.816 × 99 =
7. 7.7 × 9 =
8. 8.76 × 99 =
9. 9.793 × 999 =
10. 10.6 × 9 =
11. 11.68 × 9 =
12. 12.81 × 99 =
13. 13.905 × 999 =
14. 14.513 × 999 =
15. 15.2572 × 99 =
16. 16.69 × 99 =
17. 17.41 × 99 =
18. 18.5 × 9 =
19. 19.31 × 99 =
20. 20.2318 × 99 =
21. 21.9 × 99 =
22. 22.8 × 9 =
23. 23.908 × 999 =
24. 24.264 × 9 =
25. 25.2421 × 99 =
26. 26.33 × 99 =
27. 27.2079 × 99 =
28. 28.7 × 99 =
29. 29.743 × 99 =
30. 30.93 × 99 =
31. 31.12215 × 999 =
32. 32.6 × 99 =
33. 33.25209 × 999 =
34. 34.241 × 9 =
35. 35.62 × 99 =
36. 36.262 × 9 =
37. 37.26384 × 999 =
38. 38.8 × 9 =
39. 39.18 × 99 =
40. 40.5 × 9 =

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