Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 266 · 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. 1.415 × 999 =
2. 2.483 × 999 =
3. 3.634 × 99 =
4. 4.73 × 9 =
5. 5.87 × 99 =
6. 6.656 × 999 =
7. 7.2 × 9 =
8. 8.39 × 99 =
9. 9.482 × 999 =
10. 10.2 × 9 =
11. 11.562 × 999 =
12. 12.13371 × 999 =
13. 13.5 × 9 =
14. 14.3 × 9 =
15. 15.5 × 9 =
16. 16.742 × 999 =
17. 17.7 × 9 =
18. 18.4 × 9 =
19. 19.63 × 99 =
20. 20.568 × 999 =
21. 21.43 × 99 =
22. 22.4 × 9 =
23. 23.167 × 999 =
24. 24.8 × 9 =
25. 25.547 × 999 =
26. 26.766 × 999 =
27. 27.7 × 9 =
28. 28.52 × 99 =
29. 29.18 × 99 =
30. 30.1345 × 99 =
31. 31.161 × 999 =
32. 32.42 × 9 =
33. 33.62 × 99 =
34. 34.27 × 99 =
35. 35.111 × 9 =
36. 36.808 × 99 =
37. 37.298 × 999 =
38. 38.2 × 9 =
39. 39.405 × 99 =
40. 40.276 × 999 =

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