Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 826 · 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. 1.33 × 99 =
2. 2.231 × 999 =
3. 3.8 × 9 =
4. 4.594 × 999 =
5. 5.2466 × 99 =
6. 6.2 × 9 =
7. 7.41 × 99 =
8. 8.243 × 9 =
9. 9.1238 × 99 =
10. 10.58 × 99 =
11. 11.5852 × 999 =
12. 12.16 × 99 =
13. 13.63 × 999 =
14. 14.77 × 99 =
15. 15.1101 × 99 =
16. 16.2662 × 99 =
17. 17.20872 × 999 =
18. 18.221 × 9 =
19. 19.823 × 999 =
20. 20.2 × 99 =
21. 21.174 × 9 =
22. 22.8 × 9 =
23. 23.84 × 99 =
24. 24.138 × 9 =
25. 25.7 × 9 =
26. 26.2 × 9 =
27. 27.93 × 99 =
28. 28.119 × 9 =
29. 29.815 × 999 =
30. 30.49 × 99 =
31. 31.512 × 999 =
32. 32.505 × 999 =
33. 33.8 × 9 =
34. 34.27206 × 999 =
35. 35.47 × 999 =
36. 36.58 × 9 =
37. 37.267 × 9 =
38. 38.13 × 99 =
39. 39.9012 × 999 =
40. 40.256 × 999 =

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