Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 356 · 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. 1.5 × 9 =
2. 2.13 × 99 =
3. 3.119 × 9 =
4. 4.79 × 99 =
5. 5.876 × 999 =
6. 6.2123 × 99 =
7. 7.52 × 99 =
8. 8.5 × 9 =
9. 9.81 × 99 =
10. 10.68 × 99 =
11. 11.44 × 99 =
12. 12.4 × 9 =
13. 13.936 × 999 =
14. 14.252 × 999 =
15. 15.23 × 99 =
16. 16.232 × 9 =
17. 17.98 × 99 =
18. 18.15397 × 999 =
19. 19.214 × 9 =
20. 20.73 × 9 =
21. 21.15 × 99 =
22. 22.5 × 9 =
23. 23.44 × 99 =
24. 24.1602 × 99 =
25. 25.7 × 9 =
26. 26.859 × 999 =
27. 27.108 × 999 =
28. 28.658 × 99 =
29. 29.5 × 9 =
30. 30.778 × 999 =
31. 31.3 × 9 =
32. 32.125 × 999 =
33. 33.1462 × 99 =
34. 34.5 × 9 =
35. 35.191 × 9 =
36. 36.7 × 9 =
37. 37.73 × 99 =
38. 38.872 × 999 =
39. 39.83 × 99 =
40. 40.272 × 999 =

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