Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 437 · 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. 1.888 × 999 =
2. 2.3 × 9 =
3. 3.444 × 99 =
4. 4.29 × 99 =
5. 5.216 × 9 =
6. 6.227 × 999 =
7. 7.338 × 999 =
8. 8.157 × 999 =
9. 9.5 × 9 =
10. 10.19 × 99 =
11. 11.7 × 9 =
12. 12.5 × 9 =
13. 13.666 × 999 =
14. 14.3 × 9 =
15. 15.265 × 99 =
16. 16.799 × 999 =
17. 17.214 × 99 =
18. 18.601 × 999 =
19. 19.66 × 99 =
20. 20.103 × 999 =
21. 21.31 × 99 =
22. 22.553 × 99 =
23. 23.43 × 99 =
24. 24.897 × 99 =
25. 25.8 × 9 =
26. 26.14 × 99 =
27. 27.7 × 9 =
28. 28.2 × 9 =
29. 29.795 × 999 =
30. 30.63 × 99 =
31. 31.2406 × 99 =
32. 32.27 × 99 =
33. 33.7 × 99 =
34. 34.571 × 999 =
35. 35.81 × 99 =
36. 36.265 × 9 =
37. 37.2 × 9 =
38. 38.43 × 99 =
39. 39.54 × 99 =
40. 40.72 × 99 =

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