Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 529 · 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. 1.2 × 9 =
2. 2.4 × 9 =
3. 3.1496 × 99 =
4. 4.5 × 9 =
5. 5.83 × 99 =
6. 6.53 × 999 =
7. 7.173 × 9 =
8. 8.7 × 9 =
9. 9.6 × 9 =
10. 10.104 × 999 =
11. 11.371 × 999 =
12. 12.3 × 9 =
13. 13.51 × 999 =
14. 14.498 × 999 =
15. 15.29 × 9 =
16. 16.19 × 99 =
17. 17.65 × 99 =
18. 18.4 × 9 =
19. 19.2 × 9 =
20. 20.2 × 9 =
21. 21.799 × 999 =
22. 22.773 × 999 =
23. 23.24 × 99 =
24. 24.9381 × 999 =
25. 25.75 × 99 =
26. 26.628 × 999 =
27. 27.4 × 9 =
28. 28.7 × 9 =
29. 29.8 × 9 =
30. 30.93 × 99 =
31. 31.549 × 999 =
32. 32.6 × 9 =
33. 33.4 × 99 =
34. 34.5 × 9 =
35. 35.7 × 9 =
36. 36.548 × 999 =
37. 37.92 × 99 =
38. 38.63 × 9 =
39. 39.2 × 9 =
40. 40.21 × 999 =

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