Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 272 · 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. 1.319 × 999 =
2. 2.75 × 99 =
3. 3.13914 × 999 =
4. 4.11 × 99 =
5. 5.2 × 9 =
6. 6.28 × 99 =
7. 7.16096 × 999 =
8. 8.5 × 99 =
9. 9.6 × 9 =
10. 10.353 × 99 =
11. 11.1209 × 99 =
12. 12.1203 × 99 =
13. 13.192 × 999 =
14. 14.24507 × 999 =
15. 15.254 × 999 =
16. 16.8 × 9 =
17. 17.23 × 9 =
18. 18.262 × 999 =
19. 19.4 × 9 =
20. 20.3 × 99 =
21. 21.207 × 99 =
22. 22.1247 × 99 =
23. 23.4039 × 999 =
24. 24.2 × 9 =
25. 25.5 × 9 =
26. 26.73 × 99 =
27. 27.2 × 999 =
28. 28.7 × 9 =
29. 29.2 × 9 =
30. 30.2 × 9 =
31. 31.83 × 99 =
32. 32.2206 × 99 =
33. 33.1879 × 99 =
34. 34.7 × 9 =
35. 35.8 × 9 =
36. 36.5 × 9 =
37. 37.944 × 999 =
38. 38.602 × 999 =
39. 39.97 × 99 =
40. 40.37 × 9 =

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