Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 128 · 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. 1.49 × 99 =
2. 2.568 × 999 =
3. 3.161 × 9 =
4. 4.6 × 9 =
5. 5.872 × 999 =
6. 6.11 × 99 =
7. 7.181 × 999 =
8. 8.8 × 9 =
9. 9.7 × 9 =
10. 10.196 × 9 =
11. 11.43 × 99 =
12. 12.597 × 999 =
13. 13.13778 × 999 =
14. 14.21 × 99 =
15. 15.93 × 99 =
16. 16.189 × 999 =
17. 17.49 × 99 =
18. 18.2 × 9 =
19. 19.36 × 99 =
20. 20.33 × 99 =
21. 21.2 × 9 =
22. 22.77 × 99 =
23. 23.3 × 9 =
24. 24.25 × 99 =
25. 25.136 × 999 =
26. 26.24402 × 999 =
27. 27.5 × 9 =
28. 28.5 × 9 =
29. 29.63 × 99 =
30. 30.796 × 999 =
31. 31.17 × 99 =
32. 32.1245 × 99 =
33. 33.194 × 9 =
34. 34.3 × 99 =
35. 35.81 × 99 =
36. 36.32 × 999 =
37. 37.4 × 9 =
38. 38.185 × 999 =
39. 39.275 × 999 =
40. 40.7 × 99 =

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