Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 877 · 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. 1.2 × 9 =
2. 2.452 × 999 =
3. 3.84 × 99 =
4. 4.2 × 9 =
5. 5.888 × 999 =
6. 6.26146 × 999 =
7. 7.199 × 9 =
8. 8.767 × 99 =
9. 9.43 × 99 =
10. 10.2161 × 99 =
11. 11.52 × 9 =
12. 12.7 × 9 =
13. 13.28 × 99 =
14. 14.639 × 999 =
15. 15.51 × 99 =
16. 16.18 × 99 =
17. 17.16036 × 999 =
18. 18.2058 × 99 =
19. 19.6 × 9 =
20. 20.711 × 999 =
21. 21.8 × 9 =
22. 22.661 × 999 =
23. 23.186 × 999 =
24. 24.36 × 9 =
25. 25.61 × 9 =
26. 26.7 × 99 =
27. 27.13051 × 999 =
28. 28.10391 × 999 =
29. 29.24 × 99 =
30. 30.82 × 99 =
31. 31.3 × 9 =
32. 32.135 × 9 =
33. 33.7 × 99 =
34. 34.2514 × 99 =
35. 35.31 × 99 =
36. 36.31 × 99 =
37. 37.7 × 99 =
38. 38.2 × 9 =
39. 39.608 × 999 =
40. 40.22 × 999 =

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