Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 743 · 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. 1.5 × 9 =
2. 2.5 × 9 =
3. 3.11 × 99 =
4. 4.93 × 99 =
5. 5.11 × 99 =
6. 6.61 × 99 =
7. 7.17589 × 999 =
8. 8.2 × 9 =
9. 9.1592 × 999 =
10. 10.4 × 9 =
11. 11.207 × 99 =
12. 12.94 × 9 =
13. 13.2075 × 99 =
14. 14.6 × 99 =
15. 15.676 × 999 =
16. 16.254 × 9 =
17. 17.991 × 999 =
18. 18.7 × 9 =
19. 19.69 × 99 =
20. 20.193 × 9 =
21. 21.6 × 9 =
22. 22.3 × 9 =
23. 23.43 × 99 =
24. 24.27012 × 999 =
25. 25.595 × 999 =
26. 26.6 × 9 =
27. 27.584 × 999 =
28. 28.65 × 99 =
29. 29.591 × 999 =
30. 30.93 × 99 =
31. 31.15 × 99 =
32. 32.75 × 999 =
33. 33.606 × 99 =
34. 34.998 × 999 =
35. 35.909 × 999 =
36. 36.227 × 9 =
37. 37.86 × 99 =
38. 38.56 × 9 =
39. 39.2683 × 99 =
40. 40.3307 × 999 =

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