Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 706 · 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. 1.596 × 999 =
2. 2.21 × 9 =
3. 3.171 × 999 =
4. 4.6 × 9 =
5. 5.72 × 99 =
6. 6.938 × 99 =
7. 7.3 × 9 =
8. 8.2 × 9 =
9. 9.27136 × 999 =
10. 10.212 × 999 =
11. 11.97 × 99 =
12. 12.94 × 99 =
13. 13.187 × 9 =
14. 14.24064 × 999 =
15. 15.873 × 999 =
16. 16.2596 × 99 =
17. 17.2 × 9 =
18. 18.529 × 99 =
19. 19.1836 × 999 =
20. 20.2 × 9 =
21. 21.7 × 9 =
22. 22.12 × 99 =
23. 23.66 × 99 =
24. 24.1752 × 99 =
25. 25.373 × 999 =
26. 26.35 × 99 =
27. 27.5 × 99 =
28. 28.36 × 99 =
29. 29.11 × 99 =
30. 30.22 × 99 =
31. 31.6797 × 999 =
32. 32.51 × 99 =
33. 33.681 × 999 =
34. 34.79 × 99 =
35. 35.61 × 9 =
36. 36.167 × 99 =
37. 37.7 × 9 =
38. 38.614 × 999 =
39. 39.1698 × 99 =
40. 40.5 × 9 =

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