Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 252 · 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. 1.191 × 9 =
2. 2.125 × 999 =
3. 3.779 × 99 =
4. 4.63 × 99 =
5. 5.20745 × 999 =
6. 6.24053 × 999 =
7. 7.28106 × 999 =
8. 8.233 × 9 =
9. 9.2344 × 99 =
10. 10.75 × 99 =
11. 11.255 × 999 =
12. 12.588 × 999 =
13. 13.46 × 999 =
14. 14.328 × 999 =
15. 15.953 × 999 =
16. 16.9194 × 999 =
17. 17.2165 × 99 =
18. 18.835 × 999 =
19. 19.126 × 999 =
20. 20.368 × 999 =
21. 21.3 × 9 =
22. 22.71 × 99 =
23. 23.8 × 999 =
24. 24.96 × 99 =
25. 25.191 × 99 =
26. 26.234 × 9 =
27. 27.87 × 9 =
28. 28.877 × 99 =
29. 29.81 × 99 =
30. 30.6 × 9 =
31. 31.201 × 999 =
32. 32.9 × 99 =
33. 33.25 × 99 =
34. 34.19 × 99 =
35. 35.27 × 9 =
36. 36.4 × 9 =
37. 37.2 × 9 =
38. 38.6139 × 999 =
39. 39.609 × 999 =
40. 40.17 × 99 =

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