Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 960 · 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. 1.222 × 999 =
2. 2.3 × 9 =
3. 3.74 × 99 =
4. 4.291 × 999 =
5. 5.224 × 9 =
6. 6.191 × 999 =
7. 7.91 × 99 =
8. 8.743 × 999 =
9. 9.15402 × 999 =
10. 10.3 × 9 =
11. 11.791 × 999 =
12. 12.491 × 999 =
13. 13.86 × 99 =
14. 14.242 × 999 =
15. 15.829 × 99 =
16. 16.18 × 99 =
17. 17.356 × 999 =
18. 18.2727 × 99 =
19. 19.83 × 99 =
20. 20.26 × 9 =
21. 21.764 × 999 =
22. 22.801 × 999 =
23. 23.2148 × 99 =
24. 24.5 × 9 =
25. 25.811 × 999 =
26. 26.28 × 9 =
27. 27.19 × 99 =
28. 28.16 × 999 =
29. 29.91 × 99 =
30. 30.92 × 99 =
31. 31.15739 × 999 =
32. 32.925 × 999 =
33. 33.13 × 99 =
34. 34.35 × 99 =
35. 35.9 × 99 =
36. 36.2 × 9 =
37. 37.387 × 999 =
38. 38.55 × 9 =
39. 39.91 × 99 =
40. 40.8 × 9 =

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