Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 929 · 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. 1.2 × 9 =
2. 2.36 × 99 =
3. 3.7 × 9 =
4. 4.913 × 999 =
5. 5.68 × 99 =
6. 6.22325 × 999 =
7. 7.636 × 999 =
8. 8.791 × 999 =
9. 9.1397 × 99 =
10. 10.34 × 9 =
11. 11.73 × 99 =
12. 12.269 × 9 =
13. 13.83 × 99 =
14. 14.31 × 99 =
15. 15.259 × 999 =
16. 16.4 × 9 =
17. 17.231 × 999 =
18. 18.36 × 9 =
19. 19.54 × 99 =
20. 20.644 × 999 =
21. 21.3 × 9 =
22. 22.5411 × 999 =
23. 23.2 × 9 =
24. 24.261 × 9 =
25. 25.371 × 999 =
26. 26.97 × 99 =
27. 27.73 × 99 =
28. 28.36 × 99 =
29. 29.6 × 9 =
30. 30.4 × 99 =
31. 31.41 × 99 =
32. 32.85 × 99 =
33. 33.11 × 99 =
34. 34.4 × 9 =
35. 35.359 × 999 =
36. 36.63 × 99 =
37. 37.73 × 99 =
38. 38.209 × 9 =
39. 39.765 × 999 =
40. 40.222 × 999 =

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