Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 847 · 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. 1.48 × 99 =
2. 2.186 × 999 =
3. 3.5848 × 999 =
4. 4.7 × 9 =
5. 5.194 × 9 =
6. 6.73 × 99 =
7. 7.467 × 999 =
8. 8.1029 × 99 =
9. 9.8 × 9 =
10. 10.3 × 9 =
11. 11.2 × 9 =
12. 12.77 × 99 =
13. 13.11305 × 999 =
14. 14.3 × 9 =
15. 15.527 × 999 =
16. 16.22 × 999 =
17. 17.91 × 99 =
18. 18.13028 × 999 =
19. 19.12775 × 999 =
20. 20.18 × 99 =
21. 21.49 × 99 =
22. 22.44 × 99 =
23. 23.38 × 99 =
24. 24.5 × 9 =
25. 25.11 × 99 =
26. 26.4 × 9 =
27. 27.939 × 999 =
28. 28.3 × 9 =
29. 29.2 × 9 =
30. 30.802 × 999 =
31. 31.814 × 999 =
32. 32.433 × 999 =
33. 33.27 × 99 =
34. 34.6605 × 999 =
35. 35.4 × 9 =
36. 36.6 × 9 =
37. 37.5 × 9 =
38. 38.333 × 999 =
39. 39.66 × 99 =
40. 40.48 × 99 =

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