Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 34 · 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. 1.219 × 9 =
2. 2.21223 × 999 =
3. 3.194 × 9 =
4. 4.201 × 999 =
5. 5.737 × 999 =
6. 6.579 × 999 =
7. 7.19359 × 999 =
8. 8.96 × 99 =
9. 9.91 × 99 =
10. 10.543 × 99 =
11. 11.32 × 99 =
12. 12.14 × 99 =
13. 13.1766 × 99 =
14. 14.546 × 99 =
15. 15.437 × 999 =
16. 16.791 × 999 =
17. 17.902 × 999 =
18. 18.6 × 99 =
19. 19.25591 × 999 =
20. 20.26 × 9 =
21. 21.3 × 9 =
22. 22.17625 × 999 =
23. 23.1453 × 99 =
24. 24.123 × 999 =
25. 25.6 × 9 =
26. 26.91 × 99 =
27. 27.7 × 9 =
28. 28.22831 × 999 =
29. 29.2 × 9 =
30. 30.468 × 99 =
31. 31.97 × 99 =
32. 32.3 × 99 =
33. 33.3 × 9 =
34. 34.3 × 9 =
35. 35.6446 × 999 =
36. 36.241 × 9 =
37. 37.8174 × 999 =
38. 38.72 × 9 =
39. 39.807 × 99 =
40. 40.73 × 99 =

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