Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 908 · 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. 1.3 × 9 =
2. 2.81 × 99 =
3. 3.19 × 9 =
4. 4.9136 × 999 =
5. 5.32 × 99 =
6. 6.8 × 9 =
7. 7.3 × 9 =
8. 8.137 × 9 =
9. 9.157 × 9 =
10. 10.2883 × 99 =
11. 11.25 × 99 =
12. 12.641 × 999 =
13. 13.4 × 9 =
14. 14.31 × 99 =
15. 15.5 × 9 =
16. 16.5 × 9 =
17. 17.116 × 999 =
18. 18.3 × 9 =
19. 19.512 × 999 =
20. 20.29 × 9 =
21. 21.31 × 999 =
22. 22.48 × 99 =
23. 23.237 × 9 =
24. 24.91 × 99 =
25. 25.2 × 9 =
26. 26.91 × 99 =
27. 27.7 × 9 =
28. 28.497 × 999 =
29. 29.69 × 99 =
30. 30.8 × 9 =
31. 31.1321 × 99 =
32. 32.61 × 99 =
33. 33.41 × 9 =
34. 34.125 × 999 =
35. 35.2614 × 99 =
36. 36.721 × 99 =
37. 37.56 × 99 =
38. 38.7 × 9 =
39. 39.239 × 9 =
40. 40.189 × 999 =

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