Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 65 · 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. 1.41 × 99 =
2. 2.574 × 999 =
3. 3.6 × 9 =
4. 4.22 × 99 =
5. 5.25 × 99 =
6. 6.1607 × 99 =
7. 7.1593 × 99 =
8. 8.895 × 999 =
9. 9.582 × 99 =
10. 10.2 × 9 =
11. 11.51 × 99 =
12. 12.4 × 9 =
13. 13.29 × 99 =
14. 14.3 × 9 =
15. 15.161 × 9 =
16. 16.19954 × 999 =
17. 17.9 × 99 =
18. 18.202 × 999 =
19. 19.1983 × 99 =
20. 20.547 × 999 =
21. 21.2 × 99 =
22. 22.8095 × 999 =
23. 23.7 × 9 =
24. 24.1828 × 99 =
25. 25.2 × 9 =
26. 26.8 × 9 =
27. 27.8 × 9 =
28. 28.2371 × 99 =
29. 29.2 × 9 =
30. 30.26 × 99 =
31. 31.552 × 999 =
32. 32.727 × 99 =
33. 33.872 × 999 =
34. 34.131 × 999 =
35. 35.92 × 999 =
36. 36.661 × 999 =
37. 37.254 × 9 =
38. 38.17477 × 999 =
39. 39.8 × 9 =
40. 40.8 × 9 =

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