Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 172 · 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. 1.94 × 99 =
2. 2.3 × 9 =
3. 3.12849 × 999 =
4. 4.941 × 999 =
5. 5.47 × 99 =
6. 6.54 × 9 =
7. 7.68 × 99 =
8. 8.2 × 99 =
9. 9.27613 × 999 =
10. 10.13438 × 999 =
11. 11.311 × 999 =
12. 12.153 × 9 =
13. 13.2 × 9 =
14. 14.2 × 9 =
15. 15.71 × 99 =
16. 16.25 × 99 =
17. 17.59 × 99 =
18. 18.18417 × 999 =
19. 19.8 × 9 =
20. 20.28 × 99 =
21. 21.27103 × 999 =
22. 22.38 × 9 =
23. 23.897 × 999 =
24. 24.3 × 9 =
25. 25.95 × 99 =
26. 26.54 × 99 =
27. 27.421 × 99 =
28. 28.6 × 9 =
29. 29.2441 × 99 =
30. 30.535 × 999 =
31. 31.7 × 9 =
32. 32.918 × 999 =
33. 33.665 × 999 =
34. 34.3 × 9 =
35. 35.711 × 999 =
36. 36.179 × 9 =
37. 37.16 × 9 =
38. 38.233 × 999 =
39. 39.35 × 99 =
40. 40.4 × 9 =

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