Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 858 · 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. 1.94 × 9 =
2. 2.514 × 999 =
3. 3.129 × 9 =
4. 4.27 × 99 =
5. 5.222 × 999 =
6. 6.499 × 999 =
7. 7.98 × 99 =
8. 8.119 × 999 =
9. 9.2 × 9 =
10. 10.88 × 99 =
11. 11.22411 × 999 =
12. 12.41 × 99 =
13. 13.18197 × 999 =
14. 14.57 × 99 =
15. 15.1905 × 99 =
16. 16.21 × 99 =
17. 17.16 × 9 =
18. 18.4 × 9 =
19. 19.459 × 999 =
20. 20.10668 × 999 =
21. 21.946 × 999 =
22. 22.5 × 9 =
23. 23.4 × 9 =
24. 24.1601 × 99 =
25. 25.153 × 999 =
26. 26.23 × 99 =
27. 27.3741 × 999 =
28. 28.1581 × 99 =
29. 29.191 × 999 =
30. 30.137 × 999 =
31. 31.5 × 9 =
32. 32.96 × 99 =
33. 33.142 × 9 =
34. 34.8 × 9 =
35. 35.287 × 999 =
36. 36.6 × 9 =
37. 37.408 × 999 =
38. 38.2353 × 99 =
39. 39.96 × 99 =
40. 40.641 × 999 =

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