Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 386 · 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. 1.362 × 999 =
2. 2.271 × 999 =
3. 3.6 × 9 =
4. 4.5241 × 999 =
5. 5.76 × 99 =
6. 6.3 × 9 =
7. 7.162 × 9 =
8. 8.194 × 99 =
9. 9.786 × 999 =
10. 10.123 × 9 =
11. 11.252 × 999 =
12. 12.16413 × 999 =
13. 13.5 × 9 =
14. 14.506 × 999 =
15. 15.679 × 999 =
16. 16.272 × 999 =
17. 17.221 × 9 =
18. 18.91 × 99 =
19. 19.13 × 99 =
20. 20.17 × 99 =
21. 21.844 × 999 =
22. 22.49 × 99 =
23. 23.38 × 99 =
24. 24.24645 × 999 =
25. 25.25 × 99 =
26. 26.96 × 99 =
27. 27.3 × 9 =
28. 28.1657 × 999 =
29. 29.8151 × 999 =
30. 30.1552 × 99 =
31. 31.2 × 9 =
32. 32.111 × 9 =
33. 33.20996 × 999 =
34. 34.796 × 999 =
35. 35.2 × 9 =
36. 36.5 × 9 =
37. 37.923 × 99 =
38. 38.16 × 9 =
39. 39.948 × 999 =
40. 40.164 × 9 =

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