Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 611 · 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. 1.314 × 999 =
2. 2.18 × 99 =
3. 3.5 × 9 =
4. 4.85 × 99 =
5. 5.21 × 99 =
6. 6.6 × 9 =
7. 7.46 × 99 =
8. 8.8 × 9 =
9. 9.96 × 99 =
10. 10.52 × 99 =
11. 11.41 × 999 =
12. 12.2915 × 99 =
13. 13.284 × 999 =
14. 14.854 × 999 =
15. 15.7 × 9 =
16. 16.504 × 99 =
17. 17.6 × 9 =
18. 18.14368 × 999 =
19. 19.913 × 999 =
20. 20.901 × 999 =
21. 21.217 × 999 =
22. 22.15626 × 999 =
23. 23.62 × 99 =
24. 24.1852 × 99 =
25. 25.31 × 99 =
26. 26.9 × 99 =
27. 27.8 × 9 =
28. 28.7 × 9 =
29. 29.192 × 99 =
30. 30.6 × 9 =
31. 31.1422 × 99 =
32. 32.31 × 99 =
33. 33.694 × 999 =
34. 34.164 × 9 =
35. 35.69 × 99 =
36. 36.66 × 99 =
37. 37.15952 × 999 =
38. 38.642 × 999 =
39. 39.4 × 9 =
40. 40.2122 × 99 =

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