Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 481 · 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. 1.52 × 99 =
2. 2.24 × 99 =
3. 3.876 × 999 =
4. 4.121 × 9 =
5. 5.71 × 99 =
6. 6.61 × 99 =
7. 7.91 × 99 =
8. 8.6 × 9 =
9. 9.179 × 99 =
10. 10.22 × 99 =
11. 11.84 × 99 =
12. 12.123 × 999 =
13. 13.7 × 9 =
14. 14.268 × 9 =
15. 15.2 × 9 =
16. 16.27 × 99 =
17. 17.26 × 99 =
18. 18.841 × 999 =
19. 19.3 × 9 =
20. 20.96 × 99 =
21. 21.3 × 9 =
22. 22.762 × 99 =
23. 23.4 × 9 =
24. 24.259 × 9 =
25. 25.6 × 9 =
26. 26.22173 × 999 =
27. 27.3 × 9 =
28. 28.1632 × 99 =
29. 29.1975 × 99 =
30. 30.72 × 99 =
31. 31.256 × 9 =
32. 32.4 × 9 =
33. 33.2 × 9 =
34. 34.49 × 999 =
35. 35.7 × 9 =
36. 36.16 × 99 =
37. 37.59 × 9 =
38. 38.42 × 999 =
39. 39.82 × 99 =
40. 40.2574 × 99 =

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