Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 684 · 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. 1.7324 × 999 =
2. 2.968 × 999 =
3. 3.87 × 99 =
4. 4.1952 × 99 =
5. 5.4 × 9 =
6. 6.3 × 9 =
7. 7.6 × 9 =
8. 8.6 × 9 =
9. 9.57 × 99 =
10. 10.515 × 999 =
11. 11.15 × 999 =
12. 12.149 × 999 =
13. 13.8 × 9 =
14. 14.24 × 9 =
15. 15.28 × 99 =
16. 16.7 × 9 =
17. 17.1593 × 99 =
18. 18.15806 × 999 =
19. 19.692 × 999 =
20. 20.9794 × 999 =
21. 21.191 × 99 =
22. 22.7 × 9 =
23. 23.97 × 99 =
24. 24.6 × 9 =
25. 25.1302 × 99 =
26. 26.47 × 99 =
27. 27.222 × 9 =
28. 28.54 × 99 =
29. 29.92 × 99 =
30. 30.49 × 99 =
31. 31.307 × 999 =
32. 32.163 × 9 =
33. 33.81 × 99 =
34. 34.7 × 9 =
35. 35.15 × 99 =
36. 36.413 × 99 =
37. 37.491 × 999 =
38. 38.1775 × 99 =
39. 39.7 × 9 =
40. 40.44 × 9 =

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