Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 247 · 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. 2.168 × 999 =
3. 3.135 × 999 =
4. 4.6 × 99 =
5. 5.25276 × 999 =
6. 6.7 × 9 =
7. 7.9 × 99 =
8. 8.539 × 99 =
9. 9.161 × 999 =
10. 10.52 × 99 =
11. 11.47 × 99 =
12. 12.24112 × 999 =
13. 13.79 × 9 =
14. 14.792 × 999 =
15. 15.78 × 999 =
16. 16.5 × 9 =
17. 17.36 × 99 =
18. 18.86 × 99 =
19. 19.9856 × 999 =
20. 20.6 × 9 =
21. 21.88 × 99 =
22. 22.255 × 9 =
23. 23.23799 × 999 =
24. 24.2751 × 99 =
25. 25.141 × 99 =
26. 26.53 × 99 =
27. 27.44 × 999 =
28. 28.7 × 9 =
29. 29.691 × 999 =
30. 30.2 × 9 =
31. 31.2 × 9 =
32. 32.54 × 9 =
33. 33.413 × 999 =
34. 34.2 × 999 =
35. 35.91 × 99 =
36. 36.3 × 9 =
37. 37.2 × 9 =
38. 38.22 × 99 =
39. 39.529 × 999 =
40. 40.173 × 9 =

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