Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 250 · 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. 1.115 × 9 =
2. 2.27 × 99 =
3. 3.1671 × 99 =
4. 4.9574 × 999 =
5. 5.85 × 99 =
6. 6.11 × 999 =
7. 7.13 × 99 =
8. 8.241 × 9 =
9. 9.3704 × 999 =
10. 10.1051 × 99 =
11. 11.2517 × 99 =
12. 12.13 × 99 =
13. 13.12149 × 999 =
14. 14.3 × 9 =
15. 15.48 × 9 =
16. 16.3 × 9 =
17. 17.5 × 9 =
18. 18.77 × 99 =
19. 19.8 × 9 =
20. 20.58 × 99 =
21. 21.27 × 99 =
22. 22.151 × 9 =
23. 23.66 × 9 =
24. 24.912 × 999 =
25. 25.2388 × 99 =
26. 26.1611 × 99 =
27. 27.2 × 9 =
28. 28.23006 × 999 =
29. 29.81 × 99 =
30. 30.2052 × 99 =
31. 31.6 × 9 =
32. 32.171 × 9 =
33. 33.6 × 9 =
34. 34.2516 × 99 =
35. 35.4 × 9 =
36. 36.73 × 99 =
37. 37.24 × 9 =
38. 38.121 × 9 =
39. 39.86 × 99 =
40. 40.6 × 9 =

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