Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 845 · 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. 1.6 × 9 =
2. 2.41 × 99 =
3. 3.4052 × 999 =
4. 4.91 × 99 =
5. 5.89 × 99 =
6. 6.72 × 99 =
7. 7.731 × 999 =
8. 8.491 × 999 =
9. 9.93 × 99 =
10. 10.8 × 9 =
11. 11.585 × 999 =
12. 12.853 × 999 =
13. 13.25 × 9 =
14. 14.49 × 99 =
15. 15.5951 × 999 =
16. 16.996 × 999 =
17. 17.61 × 99 =
18. 18.383 × 999 =
19. 19.43 × 9 =
20. 20.65 × 999 =
21. 21.2 × 9 =
22. 22.4 × 9 =
23. 23.9 × 99 =
24. 24.3 × 9 =
25. 25.7 × 9 =
26. 26.13162 × 999 =
27. 27.4 × 9 =
28. 28.985 × 999 =
29. 29.84 × 99 =
30. 30.2729 × 99 =
31. 31.86 × 999 =
32. 32.6 × 9 =
33. 33.826 × 999 =
34. 34.10405 × 999 =
35. 35.7 × 9 =
36. 36.31 × 99 =
37. 37.7 × 9 =
38. 38.7 × 9 =
39. 39.66 × 99 =
40. 40.2 × 9 =

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