Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 116 · 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. 1.325 × 999 =
2. 2.61 × 99 =
3. 3.8 × 9 =
4. 4.485 × 999 =
5. 5.174 × 9 =
6. 6.6 × 9 =
7. 7.5 × 9 =
8. 8.5 × 9 =
9. 9.31 × 99 =
10. 10.87 × 99 =
11. 11.15 × 999 =
12. 12.78 × 9 =
13. 13.141 × 9 =
14. 14.3 × 9 =
15. 15.17681 × 999 =
16. 16.42 × 99 =
17. 17.24 × 99 =
18. 18.4 × 9 =
19. 19.103 × 999 =
20. 20.2 × 9 =
21. 21.18844 × 999 =
22. 22.7 × 9 =
23. 23.5 × 9 =
24. 24.344 × 999 =
25. 25.61 × 99 =
26. 26.243 × 999 =
27. 27.8 × 9 =
28. 28.28 × 99 =
29. 29.2619 × 99 =
30. 30.8 × 9 =
31. 31.328 × 999 =
32. 32.9796 × 999 =
33. 33.27477 × 999 =
34. 34.51 × 99 =
35. 35.44 × 99 =
36. 36.63 × 9 =
37. 37.1223 × 99 =
38. 38.64 × 99 =
39. 39.891 × 999 =
40. 40.169 × 9 =

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