Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 241 · 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. 1.7 × 9 =
2. 2.883 × 999 =
3. 3.8 × 9 =
4. 4.18408 × 999 =
5. 5.4 × 9 =
6. 6.528 × 999 =
7. 7.6 × 9 =
8. 8.72 × 99 =
9. 9.456 × 999 =
10. 10.42 × 99 =
11. 11.3 × 9 =
12. 12.1461 × 99 =
13. 13.7 × 9 =
14. 14.29051 × 999 =
15. 15.62 × 99 =
16. 16.5 × 9 =
17. 17.401 × 999 =
18. 18.109 × 999 =
19. 19.779 × 999 =
20. 20.141 × 999 =
21. 21.5 × 9 =
22. 22.7 × 9 =
23. 23.2534 × 99 =
24. 24.2426 × 99 =
25. 25.29212 × 999 =
26. 26.5 × 9 =
27. 27.15 × 99 =
28. 28.31 × 99 =
29. 29.19406 × 999 =
30. 30.16 × 99 =
31. 31.227 × 9 =
32. 32.36 × 99 =
33. 33.446 × 999 =
34. 34.2 × 9 =
35. 35.5 × 99 =
36. 36.5 × 9 =
37. 37.8 × 9 =
38. 38.13658 × 999 =
39. 39.8 × 99 =
40. 40.157 × 999 =

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