Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 312 · 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. 1.5201 × 999 =
2. 2.7 × 9 =
3. 3.781 × 999 =
4. 4.79 × 9 =
5. 5.53 × 99 =
6. 6.6 × 9 =
7. 7.22721 × 999 =
8. 8.61 × 99 =
9. 9.29 × 99 =
10. 10.784 × 999 =
11. 11.2 × 9 =
12. 12.7 × 9 =
13. 13.231 × 9 =
14. 14.117 × 9 =
15. 15.954 × 999 =
16. 16.261 × 9 =
17. 17.89 × 99 =
18. 18.2 × 9 =
19. 19.307 × 999 =
20. 20.8 × 9 =
21. 21.23 × 99 =
22. 22.751 × 999 =
23. 23.379 × 999 =
24. 24.3 × 9 =
25. 25.224 × 9 =
26. 26.91 × 99 =
27. 27.6 × 9 =
28. 28.165 × 999 =
29. 29.14297 × 999 =
30. 30.33 × 99 =
31. 31.15 × 99 =
32. 32.721 × 99 =
33. 33.3 × 9 =
34. 34.54 × 99 =
35. 35.7 × 9 =
36. 36.209 × 9 =
37. 37.91 × 99 =
38. 38.216 × 999 =
39. 39.75 × 9 =
40. 40.1751 × 99 =

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