Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 767 · 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. 1.5 × 9 =
2. 2.5 × 9 =
3. 3.17231 × 999 =
4. 4.211 × 9 =
5. 5.2931 × 99 =
6. 6.7 × 9 =
7. 7.1717 × 99 =
8. 8.2183 × 99 =
9. 9.8 × 9 =
10. 10.3024 × 999 =
11. 11.31 × 999 =
12. 12.631 × 999 =
13. 13.22 × 9 =
14. 14.69 × 999 =
15. 15.7 × 9 =
16. 16.438 × 999 =
17. 17.8 × 9 =
18. 18.186 × 999 =
19. 19.189 × 9 =
20. 20.14921 × 999 =
21. 21.6 × 9 =
22. 22.97 × 99 =
23. 23.911 × 999 =
24. 24.51 × 99 =
25. 25.6 × 9 =
26. 26.45 × 99 =
27. 27.488 × 999 =
28. 28.156 × 9 =
29. 29.35 × 9 =
30. 30.46 × 99 =
31. 31.897 × 999 =
32. 32.2867 × 99 =
33. 33.182 × 999 =
34. 34.5 × 9 =
35. 35.51 × 99 =
36. 36.7 × 9 =
37. 37.8 × 9 =
38. 38.43 × 99 =
39. 39.2401 × 99 =
40. 40.32 × 999 =

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