Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 32 · 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. 2.211 × 999 =
3. 3.69 × 999 =
4. 4.92 × 99 =
5. 5.14 × 99 =
6. 6.858 × 999 =
7. 7.2 × 9 =
8. 8.8 × 9 =
9. 9.32 × 99 =
10. 10.286 × 999 =
11. 11.966 × 999 =
12. 12.12 × 99 =
13. 13.74 × 99 =
14. 14.31 × 99 =
15. 15.91 × 9 =
16. 16.3 × 9 =
17. 17.16 × 99 =
18. 18.2851 × 999 =
19. 19.8 × 9 =
20. 20.255 × 9 =
21. 21.2 × 9 =
22. 22.19961 × 999 =
23. 23.36 × 999 =
24. 24.38 × 99 =
25. 25.3 × 9 =
26. 26.8 × 9 =
27. 27.37 × 99 =
28. 28.7037 × 999 =
29. 29.3 × 9 =
30. 30.23324 × 999 =
31. 31.3 × 9 =
32. 32.7 × 9 =
33. 33.143 × 99 =
34. 34.15289 × 999 =
35. 35.731 × 999 =
36. 36.3 × 9 =
37. 37.66 × 99 =
38. 38.1848 × 99 =
39. 39.6851 × 999 =
40. 40.83 × 99 =

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