Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 106 · 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. 1.914 × 999 =
2. 2.4 × 9 =
3. 3.447 × 999 =
4. 4.2 × 9 =
5. 5.15 × 99 =
6. 6.192 × 999 =
7. 7.54 × 99 =
8. 8.1281 × 99 =
9. 9.232 × 9 =
10. 10.68 × 99 =
11. 11.11 × 99 =
12. 12.439 × 999 =
13. 13.91 × 99 =
14. 14.8 × 9 =
15. 15.54 × 99 =
16. 16.23 × 99 =
17. 17.406 × 999 =
18. 18.269 × 9 =
19. 19.5 × 9 =
20. 20.4 × 9 =
21. 21.22 × 99 =
22. 22.69 × 99 =
23. 23.11 × 99 =
24. 24.83 × 99 =
25. 25.2862 × 99 =
26. 26.119 × 999 =
27. 27.86 × 99 =
28. 28.66 × 99 =
29. 29.73 × 99 =
30. 30.44 × 99 =
31. 31.92 × 99 =
32. 32.915 × 999 =
33. 33.56 × 99 =
34. 34.81 × 9 =
35. 35.44 × 9 =
36. 36.6 × 9 =
37. 37.13 × 99 =
38. 38.35 × 99 =
39. 39.2561 × 99 =
40. 40.31 × 99 =

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