Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 766 · 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. 1.2 × 9 =
2. 2.13 × 99 =
3. 3.61 × 99 =
4. 4.69 × 99 =
5. 5.166 × 9 =
6. 6.32 × 9 =
7. 7.64 × 99 =
8. 8.81 × 9 =
9. 9.921 × 999 =
10. 10.8 × 9 =
11. 11.982 × 999 =
12. 12.85 × 9 =
13. 13.168 × 9 =
14. 14.429 × 999 =
15. 15.1945 × 99 =
16. 16.198 × 999 =
17. 17.75 × 99 =
18. 18.95 × 99 =
19. 19.141 × 99 =
20. 20.66 × 99 =
21. 21.7 × 9 =
22. 22.25 × 999 =
23. 23.7473 × 999 =
24. 24.8 × 9 =
25. 25.5037 × 999 =
26. 26.4 × 9 =
27. 27.637 × 99 =
28. 28.2 × 9 =
29. 29.81 × 99 =
30. 30.206 × 9 =
31. 31.52 × 9 =
32. 32.3 × 9 =
33. 33.631 × 99 =
34. 34.84 × 99 =
35. 35.321 × 99 =
36. 36.81 × 99 =
37. 37.4 × 9 =
38. 38.568 × 99 =
39. 39.8 × 9 =
40. 40.1026 × 99 =

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