Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 288 · 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. 1.204 × 999 =
2. 2.662 × 999 =
3. 3.549 × 999 =
4. 4.84 × 99 =
5. 5.644 × 99 =
6. 6.23 × 99 =
7. 7.4 × 9 =
8. 8.54 × 99 =
9. 9.86 × 99 =
10. 10.4 × 9 =
11. 11.691 × 999 =
12. 12.629 × 999 =
13. 13.93 × 99 =
14. 14.8711 × 999 =
15. 15.4 × 9 =
16. 16.49 × 9 =
17. 17.24852 × 999 =
18. 18.97 × 9 =
19. 19.52 × 99 =
20. 20.4 × 9 =
21. 21.726 × 99 =
22. 22.176 × 9 =
23. 23.1241 × 99 =
24. 24.678 × 999 =
25. 25.11 × 99 =
26. 26.89 × 999 =
27. 27.41 × 9 =
28. 28.8 × 9 =
29. 29.29 × 99 =
30. 30.8 × 9 =
31. 31.5812 × 999 =
32. 32.20313 × 999 =
33. 33.91 × 99 =
34. 34.53 × 99 =
35. 35.4139 × 999 =
36. 36.61 × 999 =
37. 37.2091 × 99 =
38. 38.201 × 999 =
39. 39.394 × 999 =
40. 40.5 × 99 =

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