Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 573 · 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. 1.3 × 9 =
2. 2.12542 × 999 =
3. 3.4 × 9 =
4. 4.265 × 999 =
5. 5.1831 × 99 =
6. 6.2816 × 99 =
7. 7.2 × 9 =
8. 8.4 × 9 =
9. 9.18481 × 999 =
10. 10.7 × 9 =
11. 11.798 × 999 =
12. 12.351 × 999 =
13. 13.32 × 9 =
14. 14.39 × 99 =
15. 15.5 × 9 =
16. 16.66 × 99 =
17. 17.5 × 9 =
18. 18.597 × 999 =
19. 19.2 × 9 =
20. 20.362 × 99 =
21. 21.677 × 999 =
22. 22.145 × 99 =
23. 23.575 × 999 =
24. 24.61 × 99 =
25. 25.771 × 99 =
26. 26.78 × 99 =
27. 27.66 × 99 =
28. 28.672 × 999 =
29. 29.266 × 9 =
30. 30.2279 × 99 =
31. 31.26293 × 999 =
32. 32.6766 × 999 =
33. 33.1704 × 999 =
34. 34.5 × 9 =
35. 35.2 × 9 =
36. 36.2863 × 999 =
37. 37.84 × 99 =
38. 38.973 × 999 =
39. 39.68 × 99 =
40. 40.686 × 99 =

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