Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 583 · 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. 1.13 × 9 =
2. 2.26 × 99 =
3. 3.194 × 9 =
4. 4.43 × 9 =
5. 5.121 × 9 =
6. 6.3199 × 999 =
7. 7.29 × 99 =
8. 8.16 × 99 =
9. 9.36 × 999 =
10. 10.48 × 99 =
11. 11.29 × 99 =
12. 12.11 × 99 =
13. 13.6 × 9 =
14. 14.206 × 999 =
15. 15.6 × 9 =
16. 16.12745 × 999 =
17. 17.623 × 999 =
18. 18.22 × 99 =
19. 19.14557 × 999 =
20. 20.26198 × 999 =
21. 21.69 × 99 =
22. 22.23 × 99 =
23. 23.362 × 99 =
24. 24.312 × 999 =
25. 25.719 × 999 =
26. 26.3 × 9 =
27. 27.229 × 9 =
28. 28.7444 × 999 =
29. 29.32 × 99 =
30. 30.4 × 9 =
31. 31.4 × 9 =
32. 32.2 × 9 =
33. 33.15 × 99 =
34. 34.91 × 99 =
35. 35.75 × 99 =
36. 36.141 × 9 =
37. 37.4 × 9 =
38. 38.34 × 9 =
39. 39.2493 × 99 =
40. 40.137 × 99 =

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