Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 219 · 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. 1.721 × 999 =
2. 2.22836 × 999 =
3. 3.3923 × 999 =
4. 4.689 × 999 =
5. 5.265 × 999 =
6. 6.37 × 99 =
7. 7.6 × 99 =
8. 8.7 × 9 =
9. 9.657 × 999 =
10. 10.7 × 9 =
11. 11.6 × 99 =
12. 12.94 × 99 =
13. 13.4 × 9 =
14. 14.4 × 9 =
15. 15.21 × 99 =
16. 16.18958 × 999 =
17. 17.6 × 99 =
18. 18.876 × 999 =
19. 19.801 × 999 =
20. 20.1334 × 99 =
21. 21.3 × 9 =
22. 22.2585 × 99 =
23. 23.2 × 9 =
24. 24.591 × 999 =
25. 25.119 × 999 =
26. 26.2 × 9 =
27. 27.916 × 99 =
28. 28.121 × 999 =
29. 29.6 × 9 =
30. 30.991 × 999 =
31. 31.2 × 9 =
32. 32.2625 × 99 =
33. 33.2 × 9 =
34. 34.45 × 99 =
35. 35.18 × 999 =
36. 36.94 × 99 =
37. 37.287 × 999 =
38. 38.6 × 9 =
39. 39.28898 × 999 =
40. 40.18015 × 999 =

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