Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 373 · 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. 2.97 × 99 =
3. 3.19541 × 999 =
4. 4.3 × 9 =
5. 5.17695 × 999 =
6. 6.9 × 99 =
7. 7.81 × 9 =
8. 8.161 × 999 =
9. 9.269 × 9 =
10. 10.29 × 99 =
11. 11.85 × 99 =
12. 12.2833 × 99 =
13. 13.93 × 999 =
14. 14.97 × 99 =
15. 15.49 × 99 =
16. 16.36 × 99 =
17. 17.3 × 9 =
18. 18.8 × 9 =
19. 19.715 × 999 =
20. 20.151 × 999 =
21. 21.7931 × 999 =
22. 22.2 × 9 =
23. 23.3 × 9 =
24. 24.4 × 9 =
25. 25.2 × 9 =
26. 26.2 × 99 =
27. 27.95 × 99 =
28. 28.52 × 99 =
29. 29.8 × 9 =
30. 30.78 × 99 =
31. 31.111 × 9 =
32. 32.7 × 9 =
33. 33.113 × 9 =
34. 34.694 × 999 =
35. 35.7 × 99 =
36. 36.11 × 999 =
37. 37.11 × 99 =
38. 38.676 × 999 =
39. 39.11 × 99 =
40. 40.5 × 9 =

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