Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 282 · 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. 1.228 × 999 =
2. 2.95 × 99 =
3. 3.457 × 99 =
4. 4.184 × 9 =
5. 5.7 × 9 =
6. 6.14371 × 999 =
7. 7.10881 × 999 =
8. 8.9389 × 999 =
9. 9.493 × 999 =
10. 10.4 × 9 =
11. 11.518 × 999 =
12. 12.88 × 99 =
13. 13.75 × 99 =
14. 14.14364 × 999 =
15. 15.931 × 999 =
16. 16.7 × 9 =
17. 17.3 × 9 =
18. 18.46 × 99 =
19. 19.2 × 9 =
20. 20.105 × 999 =
21. 21.3262 × 999 =
22. 22.673 × 999 =
23. 23.4 × 9 =
24. 24.471 × 999 =
25. 25.292 × 999 =
26. 26.481 × 999 =
27. 27.69 × 99 =
28. 28.2 × 9 =
29. 29.161 × 999 =
30. 30.24674 × 999 =
31. 31.43 × 99 =
32. 32.7 × 9 =
33. 33.52 × 99 =
34. 34.75 × 99 =
35. 35.31 × 99 =
36. 36.194 × 9 =
37. 37.12943 × 999 =
38. 38.20872 × 999 =
39. 39.7 × 9 =
40. 40.81 × 99 =

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