Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 771 · 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. 1.22 × 99 =
2. 2.8 × 9 =
3. 3.22 × 99 =
4. 4.73 × 99 =
5. 5.827 × 99 =
6. 6.8 × 9 =
7. 7.571 × 999 =
8. 8.79 × 999 =
9. 9.265 × 999 =
10. 10.547 × 999 =
11. 11.273 × 999 =
12. 12.3 × 9 =
13. 13.732 × 999 =
14. 14.2 × 9 =
15. 15.793 × 999 =
16. 16.6 × 9 =
17. 17.71 × 99 =
18. 18.856 × 999 =
19. 19.1691 × 99 =
20. 20.47 × 99 =
21. 21.56 × 99 =
22. 22.8 × 9 =
23. 23.53 × 9 =
24. 24.86 × 9 =
25. 25.86 × 99 =
26. 26.62 × 99 =
27. 27.7 × 9 =
28. 28.7 × 9 =
29. 29.3 × 9 =
30. 30.1987 × 99 =
31. 31.1371 × 999 =
32. 32.20179 × 999 =
33. 33.498 × 99 =
34. 34.7 × 9 =
35. 35.71 × 99 =
36. 36.26 × 99 =
37. 37.26288 × 999 =
38. 38.172 × 9 =
39. 39.18647 × 999 =
40. 40.1889 × 99 =

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