Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 268 · 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. 2.43 × 99 =
3. 3.251 × 999 =
4. 4.7948 × 999 =
5. 5.35 × 99 =
6. 6.16 × 99 =
7. 7.61 × 99 =
8. 8.4037 × 999 =
9. 9.23633 × 999 =
10. 10.6 × 9 =
11. 11.12 × 9 =
12. 12.5 × 9 =
13. 13.359 × 999 =
14. 14.752 × 999 =
15. 15.2 × 9 =
16. 16.11 × 99 =
17. 17.31 × 99 =
18. 18.956 × 99 =
19. 19.3 × 9 =
20. 20.1435 × 99 =
21. 21.641 × 99 =
22. 22.503 × 999 =
23. 23.111 × 9 =
24. 24.6 × 9 =
25. 25.92 × 99 =
26. 26.2025 × 99 =
27. 27.1797 × 999 =
28. 28.7 × 9 =
29. 29.251 × 99 =
30. 30.16 × 99 =
31. 31.29271 × 999 =
32. 32.3 × 9 =
33. 33.24101 × 999 =
34. 34.6 × 9 =
35. 35.19991 × 999 =
36. 36.11 × 99 =
37. 37.364 × 999 =
38. 38.5 × 9 =
39. 39.3 × 9 =
40. 40.3 × 99 =

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