Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 271 · 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. 1.29822 × 999 =
2. 2.135 × 999 =
3. 3.11501 × 999 =
4. 4.17 × 99 =
5. 5.8 × 9 =
6. 6.38 × 9 =
7. 7.45 × 99 =
8. 8.232 × 999 =
9. 9.679 × 999 =
10. 10.496 × 999 =
11. 11.86 × 99 =
12. 12.69 × 99 =
13. 13.26 × 99 =
14. 14.332 × 999 =
15. 15.2 × 9 =
16. 16.946 × 999 =
17. 17.7 × 9 =
18. 18.741 × 999 =
19. 19.31 × 99 =
20. 20.3035 × 999 =
21. 21.359 × 999 =
22. 22.6 × 9 =
23. 23.94 × 99 =
24. 24.10808 × 999 =
25. 25.133 × 9 =
26. 26.391 × 99 =
27. 27.4 × 9 =
28. 28.6 × 9 =
29. 29.25 × 9 =
30. 30.68 × 999 =
31. 31.862 × 99 =
32. 32.11 × 99 =
33. 33.82 × 99 =
34. 34.1992 × 99 =
35. 35.41 × 99 =
36. 36.77 × 99 =
37. 37.241 × 9 =
38. 38.2608 × 99 =
39. 39.71 × 99 =
40. 40.8 × 9 =

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