Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 103 · 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. 2.64 × 99 =
3. 3.936 × 999 =
4. 4.185 × 999 =
5. 5.13 × 99 =
6. 6.256 × 9 =
7. 7.832 × 99 =
8. 8.56 × 99 =
9. 9.972 × 999 =
10. 10.7 × 99 =
11. 11.1107 × 99 =
12. 12.829 × 999 =
13. 13.2825 × 99 =
14. 14.5 × 9 =
15. 15.8 × 9 =
16. 16.63 × 99 =
17. 17.984 × 999 =
18. 18.61 × 99 =
19. 19.1325 × 99 =
20. 20.2 × 9 =
21. 21.161 × 9 =
22. 22.38 × 99 =
23. 23.37 × 99 =
24. 24.101 × 999 =
25. 25.2241 × 99 =
26. 26.904 × 99 =
27. 27.713 × 999 =
28. 28.7 × 9 =
29. 29.251 × 999 =
30. 30.361 × 999 =
31. 31.3 × 9 =
32. 32.281 × 99 =
33. 33.121 × 9 =
34. 34.1764 × 999 =
35. 35.88 × 99 =
36. 36.37 × 99 =
37. 37.91 × 9 =
38. 38.3 × 9 =
39. 39.57 × 99 =
40. 40.366 × 999 =

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