Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 937 · 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. 1.246 × 9 =
2. 2.14 × 99 =
3. 3.7 × 99 =
4. 4.949 × 999 =
5. 5.43 × 99 =
6. 6.7 × 9 =
7. 7.5 × 9 =
8. 8.15 × 99 =
9. 9.772 × 999 =
10. 10.28385 × 999 =
11. 11.74 × 999 =
12. 12.472 × 99 =
13. 13.7 × 9 =
14. 14.94 × 99 =
15. 15.14 × 99 =
16. 16.62 × 99 =
17. 17.31 × 99 =
18. 18.4 × 9 =
19. 19.798 × 999 =
20. 20.426 × 999 =
21. 21.4 × 9 =
22. 22.22 × 9 =
23. 23.73 × 99 =
24. 24.747 × 99 =
25. 25.2 × 9 =
26. 26.51 × 9 =
27. 27.974 × 999 =
28. 28.4 × 9 =
29. 29.46 × 99 =
30. 30.831 × 999 =
31. 31.576 × 999 =
32. 32.7 × 9 =
33. 33.12854 × 999 =
34. 34.2 × 9 =
35. 35.167 × 999 =
36. 36.5 × 9 =
37. 37.4189 × 999 =
38. 38.1799 × 99 =
39. 39.59 × 99 =
40. 40.3 × 9 =

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