Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 902 · 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. 1.25 × 9 =
2. 2.2 × 99 =
3. 3.6 × 9 =
4. 4.2 × 9 =
5. 5.98 × 9 =
6. 6.7 × 9 =
7. 7.3 × 9 =
8. 8.29 × 99 =
9. 9.651 × 99 =
10. 10.25559 × 999 =
11. 11.3 × 9 =
12. 12.185 × 999 =
13. 13.543 × 999 =
14. 14.1107 × 99 =
15. 15.18426 × 999 =
16. 16.23 × 99 =
17. 17.37 × 99 =
18. 18.2 × 9 =
19. 19.1441 × 99 =
20. 20.891 × 999 =
21. 21.1783 × 99 =
22. 22.159 × 9 =
23. 23.214 × 999 =
24. 24.64 × 99 =
25. 25.576 × 999 =
26. 26.141 × 9 =
27. 27.69 × 99 =
28. 28.648 × 999 =
29. 29.4 × 9 =
30. 30.977 × 999 =
31. 31.331 × 999 =
32. 32.4 × 9 =
33. 33.655 × 999 =
34. 34.71 × 99 =
35. 35.16237 × 999 =
36. 36.6 × 9 =
37. 37.3 × 9 =
38. 38.586 × 999 =
39. 39.8 × 9 =
40. 40.9 × 99 =

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