Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 436 · 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. 2.25 × 99 =
3. 3.252 × 999 =
4. 4.421 × 99 =
5. 5.366 × 999 =
6. 6.211 × 9 =
7. 7.362 × 999 =
8. 8.666 × 999 =
9. 9.5 × 9 =
10. 10.2 × 9 =
11. 11.24 × 99 =
12. 12.52 × 99 =
13. 13.91 × 99 =
14. 14.8 × 9 =
15. 15.83 × 99 =
16. 16.925 × 999 =
17. 17.46 × 99 =
18. 18.8 × 9 =
19. 19.19 × 99 =
20. 20.991 × 999 =
21. 21.7 × 9 =
22. 22.622 × 999 =
23. 23.154 × 9 =
24. 24.764 × 999 =
25. 25.7 × 99 =
26. 26.968 × 999 =
27. 27.64 × 99 =
28. 28.2518 × 99 =
29. 29.5 × 9 =
30. 30.2595 × 999 =
31. 31.2427 × 99 =
32. 32.8 × 9 =
33. 33.321 × 99 =
34. 34.2891 × 99 =
35. 35.29941 × 999 =
36. 36.76 × 99 =
37. 37.505 × 999 =
38. 38.39 × 99 =
39. 39.7 × 9 =
40. 40.22291 × 999 =

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