Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 986 · 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. 1.6 × 9 =
2. 2.23 × 99 =
3. 3.97 × 99 =
4. 4.423 × 999 =
5. 5.13 × 99 =
6. 6.656 × 99 =
7. 7.31 × 9 =
8. 8.395 × 999 =
9. 9.148 × 9 =
10. 10.5 × 9 =
11. 11.6501 × 999 =
12. 12.3 × 9 =
13. 13.741 × 999 =
14. 14.7 × 9 =
15. 15.21 × 99 =
16. 16.3 × 9 =
17. 17.208 × 9 =
18. 18.17 × 99 =
19. 19.177 × 999 =
20. 20.6 × 9 =
21. 21.4 × 9 =
22. 22.6 × 9 =
23. 23.49 × 99 =
24. 24.118 × 9 =
25. 25.9 × 99 =
26. 26.31 × 99 =
27. 27.7 × 9 =
28. 28.101 × 9 =
29. 29.24598 × 999 =
30. 30.2 × 9 =
31. 31.6 × 9 =
32. 32.7 × 9 =
33. 33.72 × 99 =
34. 34.731 × 999 =
35. 35.5 × 9 =
36. 36.171 × 9 =
37. 37.92 × 99 =
38. 38.35 × 999 =
39. 39.94 × 99 =
40. 40.194 × 9 =

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