Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 308 · 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. 1.4 × 9 =
2. 2.72 × 99 =
3. 3.7 × 9 =
4. 4.52 × 99 =
5. 5.7 × 99 =
6. 6.629 × 999 =
7. 7.1967 × 99 =
8. 8.741 × 999 =
9. 9.12 × 99 =
10. 10.535 × 999 =
11. 11.988 × 999 =
12. 12.2 × 9 =
13. 13.611 × 999 =
14. 14.3 × 9 =
15. 15.4 × 9 =
16. 16.342 × 999 =
17. 17.155 × 9 =
18. 18.161 × 999 =
19. 19.3 × 9 =
20. 20.282 × 999 =
21. 21.394 × 999 =
22. 22.15312 × 999 =
23. 23.1794 × 99 =
24. 24.2927 × 99 =
25. 25.6 × 9 =
26. 26.41 × 99 =
27. 27.486 × 999 =
28. 28.4 × 9 =
29. 29.23919 × 999 =
30. 30.498 × 999 =
31. 31.577 × 999 =
32. 32.7 × 9 =
33. 33.1182 × 99 =
34. 34.23429 × 999 =
35. 35.3 × 9 =
36. 36.41 × 99 =
37. 37.7 × 9 =
38. 38.5 × 99 =
39. 39.16825 × 999 =
40. 40.547 × 999 =

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