Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 764 · 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. 2.205 × 9 =
3. 3.689 × 999 =
4. 4.55 × 99 =
5. 5.5311 × 999 =
6. 6.1838 × 99 =
7. 7.849 × 999 =
8. 8.91 × 999 =
9. 9.83 × 99 =
10. 10.18754 × 999 =
11. 11.2081 × 99 =
12. 12.4 × 9 =
13. 13.45 × 99 =
14. 14.18 × 99 =
15. 15.49 × 9 =
16. 16.6 × 9 =
17. 17.3 × 9 =
18. 18.7 × 99 =
19. 19.809 × 999 =
20. 20.22 × 99 =
21. 21.29 × 99 =
22. 22.3203 × 999 =
23. 23.803 × 999 =
24. 24.3 × 9 =
25. 25.494 × 999 =
26. 26.7 × 9 =
27. 27.10894 × 999 =
28. 28.74 × 999 =
29. 29.1707 × 99 =
30. 30.5 × 99 =
31. 31.71 × 99 =
32. 32.147 × 9 =
33. 33.7094 × 999 =
34. 34.1981 × 99 =
35. 35.82 × 99 =
36. 36.591 × 999 =
37. 37.8 × 9 =
38. 38.2093 × 99 =
39. 39.2 × 9 =
40. 40.413 × 999 =

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