Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 745 · 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. 1.211 × 999 =
2. 2.5 × 9 =
3. 3.522 × 999 =
4. 4.108 × 9 =
5. 5.17 × 99 =
6. 6.5 × 9 =
7. 7.7 × 9 =
8. 8.5 × 9 =
9. 9.105 × 999 =
10. 10.36 × 99 =
11. 11.255 × 9 =
12. 12.65 × 99 =
13. 13.13031 × 999 =
14. 14.549 × 999 =
15. 15.128 × 9 =
16. 16.595 × 999 =
17. 17.851 × 999 =
18. 18.693 × 999 =
19. 19.1961 × 99 =
20. 20.15 × 99 =
21. 21.3 × 9 =
22. 22.85 × 99 =
23. 23.5 × 9 =
24. 24.86 × 9 =
25. 25.22 × 99 =
26. 26.614 × 999 =
27. 27.796 × 999 =
28. 28.8 × 9 =
29. 29.22 × 99 =
30. 30.8 × 9 =
31. 31.4 × 99 =
32. 32.161 × 9 =
33. 33.19 × 99 =
34. 34.86 × 99 =
35. 35.5 × 9 =
36. 36.1307 × 99 =
37. 37.91 × 99 =
38. 38.61 × 99 =
39. 39.63 × 99 =
40. 40.831 × 99 =

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