Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 502 · 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. 1.2926 × 99 =
2. 2.136 × 999 =
3. 3.208 × 999 =
4. 4.167 × 999 =
5. 5.636 × 999 =
6. 6.3 × 9 =
7. 7.18437 × 999 =
8. 8.218 × 9 =
9. 9.197 × 9 =
10. 10.169 × 9 =
11. 11.198 × 9 =
12. 12.2585 × 99 =
13. 13.2 × 9 =
14. 14.189 × 9 =
15. 15.8 × 9 =
16. 16.157 × 9 =
17. 17.991 × 99 =
18. 18.7 × 9 =
19. 19.372 × 999 =
20. 20.65 × 9 =
21. 21.212 × 9 =
22. 22.1444 × 99 =
23. 23.6 × 9 =
24. 24.7 × 9 =
25. 25.7 × 9 =
26. 26.5834 × 999 =
27. 27.1692 × 99 =
28. 28.12302 × 999 =
29. 29.989 × 99 =
30. 30.6422 × 999 =
31. 31.10869 × 999 =
32. 32.69 × 99 =
33. 33.53 × 99 =
34. 34.9 × 999 =
35. 35.78 × 99 =
36. 36.921 × 999 =
37. 37.23876 × 999 =
38. 38.3 × 9 =
39. 39.16825 × 999 =
40. 40.211 × 999 =

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