Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 112 · 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. 1.7 × 9 =
2. 2.3 × 9 =
3. 3.19439 × 999 =
4. 4.39 × 99 =
5. 5.7 × 9 =
6. 6.2 × 9 =
7. 7.131 × 999 =
8. 8.238 × 9 =
9. 9.59 × 9 =
10. 10.512 × 99 =
11. 11.1657 × 99 =
12. 12.22091 × 999 =
13. 13.7 × 9 =
14. 14.2067 × 99 =
15. 15.334 × 999 =
16. 16.98 × 99 =
17. 17.91 × 9 =
18. 18.95 × 99 =
19. 19.21675 × 999 =
20. 20.13373 × 999 =
21. 21.183 × 999 =
22. 22.257 × 9 =
23. 23.5 × 9 =
24. 24.1979 × 99 =
25. 25.319 × 99 =
26. 26.4 × 9 =
27. 27.26691 × 999 =
28. 28.7 × 9 =
29. 29.21 × 99 =
30. 30.12246 × 999 =
31. 31.242 × 9 =
32. 32.9774 × 999 =
33. 33.7 × 9 =
34. 34.86 × 999 =
35. 35.4 × 9 =
36. 36.565 × 999 =
37. 37.21 × 99 =
38. 38.2 × 9 =
39. 39.2723 × 99 =
40. 40.28721 × 999 =

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