Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 757 · 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. 1.238 × 9 =
2. 2.2167 × 99 =
3. 3.71 × 99 =
4. 4.3 × 9 =
5. 5.243 × 999 =
6. 6.23 × 99 =
7. 7.2628 × 99 =
8. 8.933 × 999 =
9. 9.2971 × 99 =
10. 10.82 × 999 =
11. 11.8 × 9 =
12. 12.94 × 99 =
13. 13.57 × 99 =
14. 14.6 × 9 =
15. 15.8 × 9 =
16. 16.728 × 999 =
17. 17.71 × 9 =
18. 18.222 × 9 =
19. 19.497 × 999 =
20. 20.556 × 999 =
21. 21.2 × 9 =
22. 22.2347 × 99 =
23. 23.4 × 9 =
24. 24.283 × 999 =
25. 25.31 × 99 =
26. 26.401 × 999 =
27. 27.6 × 9 =
28. 28.5 × 9 =
29. 29.11 × 99 =
30. 30.25 × 9 =
31. 31.194 × 9 =
32. 32.15163 × 999 =
33. 33.8 × 9 =
34. 34.99 × 999 =
35. 35.4 × 9 =
36. 36.5 × 9 =
37. 37.3365 × 999 =
38. 38.189 × 9 =
39. 39.24 × 99 =
40. 40.2322 × 99 =

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