Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 131 · 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. 1.11869 × 999 =
2. 2.7 × 9 =
3. 3.2573 × 99 =
4. 4.47 × 99 =
5. 5.5 × 9 =
6. 6.11 × 99 =
7. 7.4 × 9 =
8. 8.28834 × 999 =
9. 9.761 × 999 =
10. 10.8751 × 999 =
11. 11.244 × 999 =
12. 12.48 × 99 =
13. 13.4 × 99 =
14. 14.93 × 99 =
15. 15.7 × 9 =
16. 16.84 × 999 =
17. 17.303 × 999 =
18. 18.1891 × 99 =
19. 19.194 × 999 =
20. 20.3 × 9 =
21. 21.139 × 999 =
22. 22.4 × 9 =
23. 23.10036 × 999 =
24. 24.41 × 99 =
25. 25.8092 × 999 =
26. 26.815 × 999 =
27. 27.539 × 999 =
28. 28.476 × 999 =
29. 29.13269 × 999 =
30. 30.8 × 9 =
31. 31.841 × 999 =
32. 32.7 × 9 =
33. 33.147 × 9 =
34. 34.43 × 99 =
35. 35.152 × 999 =
36. 36.15732 × 999 =
37. 37.584 × 999 =
38. 38.19 × 999 =
39. 39.11 × 99 =
40. 40.51 × 99 =

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