Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 324 · 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. 1.45 × 99 =
2. 2.765 × 999 =
3. 3.4 × 99 =
4. 4.47 × 99 =
5. 5.621 × 999 =
6. 6.84 × 99 =
7. 7.18 × 99 =
8. 8.4 × 9 =
9. 9.48 × 9 =
10. 10.2186 × 99 =
11. 11.796 × 99 =
12. 12.3 × 9 =
13. 13.917 × 999 =
14. 14.2 × 9 =
15. 15.21689 × 999 =
16. 16.3 × 9 =
17. 17.26293 × 999 =
18. 18.7602 × 999 =
19. 19.757 × 99 =
20. 20.19 × 99 =
21. 21.905 × 99 =
22. 22.8 × 9 =
23. 23.13 × 99 =
24. 24.7 × 99 =
25. 25.241 × 9 =
26. 26.69 × 99 =
27. 27.1588 × 99 =
28. 28.32 × 9 =
29. 29.8 × 9 =
30. 30.607 × 999 =
31. 31.161 × 999 =
32. 32.3 × 9 =
33. 33.7 × 9 =
34. 34.23645 × 999 =
35. 35.79 × 99 =
36. 36.8 × 9 =
37. 37.225 × 9 =
38. 38.5 × 9 =
39. 39.755 × 999 =
40. 40.232 × 999 =

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