Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 829 · 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. 1.12 × 99 =
2. 2.106 × 9 =
3. 3.3 × 99 =
4. 4.66 × 99 =
5. 5.202 × 9 =
6. 6.484 × 999 =
7. 7.6 × 9 =
8. 8.296 × 999 =
9. 9.468 × 999 =
10. 10.259 × 9 =
11. 11.6 × 9 =
12. 12.2955 × 99 =
13. 13.106 × 999 =
14. 14.21127 × 999 =
15. 15.85 × 99 =
16. 16.2444 × 99 =
17. 17.5 × 9 =
18. 18.261 × 999 =
19. 19.3 × 9 =
20. 20.5 × 9 =
21. 21.615 × 99 =
22. 22.20299 × 999 =
23. 23.187 × 999 =
24. 24.158 × 9 =
25. 25.8 × 9 =
26. 26.81 × 9 =
27. 27.17 × 99 =
28. 28.2 × 9 =
29. 29.111 × 999 =
30. 30.2 × 9 =
31. 31.1062 × 999 =
32. 32.69 × 99 =
33. 33.24868 × 999 =
34. 34.7 × 9 =
35. 35.202 × 9 =
36. 36.104 × 9 =
37. 37.177 × 9 =
38. 38.27 × 9 =
39. 39.2348 × 99 =
40. 40.4 × 99 =

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