Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 874 · 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. 1.111 × 9 =
2. 2.26 × 99 =
3. 3.274 × 999 =
4. 4.7108 × 999 =
5. 5.51 × 99 =
6. 6.5 × 9 =
7. 7.1912 × 99 =
8. 8.34 × 99 =
9. 9.6 × 9 =
10. 10.7 × 9 =
11. 11.11 × 99 =
12. 12.3 × 9 =
13. 13.37 × 99 =
14. 14.4 × 9 =
15. 15.1189 × 99 =
16. 16.24 × 99 =
17. 17.5 × 9 =
18. 18.19 × 99 =
19. 19.38 × 99 =
20. 20.2 × 9 =
21. 21.766 × 999 =
22. 22.21 × 99 =
23. 23.19186 × 999 =
24. 24.14947 × 999 =
25. 25.796 × 99 =
26. 26.193 × 999 =
27. 27.26702 × 999 =
28. 28.155 × 999 =
29. 29.2 × 9 =
30. 30.8336 × 999 =
31. 31.22236 × 999 =
32. 32.473 × 999 =
33. 33.199 × 9 =
34. 34.5 × 9 =
35. 35.8 × 9 =
36. 36.451 × 999 =
37. 37.714 × 99 =
38. 38.14912 × 999 =
39. 39.1904 × 99 =
40. 40.876 × 999 =

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