Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 57 · 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. 1.2 × 9 =
2. 2.285 × 99 =
3. 3.186 × 9 =
4. 4.307 × 999 =
5. 5.41 × 99 =
6. 6.64 × 99 =
7. 7.8 × 99 =
8. 8.29 × 99 =
9. 9.56 × 99 =
10. 10.88 × 99 =
11. 11.61 × 99 =
12. 12.93 × 99 =
13. 13.26295 × 999 =
14. 14.748 × 999 =
15. 15.57 × 99 =
16. 16.759 × 999 =
17. 17.131 × 999 =
18. 18.253 × 999 =
19. 19.3 × 9 =
20. 20.93 × 99 =
21. 21.3 × 9 =
22. 22.237 × 999 =
23. 23.291 × 999 =
24. 24.2789 × 99 =
25. 25.4 × 9 =
26. 26.744 × 999 =
27. 27.28 × 99 =
28. 28.2 × 9 =
29. 29.15701 × 999 =
30. 30.4 × 9 =
31. 31.175 × 9 =
32. 32.193 × 9 =
33. 33.4 × 9 =
34. 34.79 × 99 =
35. 35.999 × 99 =
36. 36.7 × 9 =
37. 37.941 × 99 =
38. 38.83 × 99 =
39. 39.283 × 999 =
40. 40.81 × 99 =

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