Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 21 · 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. 1.2367 × 99 =
2. 2.78 × 99 =
3. 3.2 × 9 =
4. 4.7241 × 999 =
5. 5.8768 × 999 =
6. 6.2 × 9 =
7. 7.1792 × 99 =
8. 8.6 × 9 =
9. 9.2625 × 99 =
10. 10.4 × 9 =
11. 11.9523 × 999 =
12. 12.46 × 99 =
13. 13.189 × 999 =
14. 14.2097 × 99 =
15. 15.1807 × 99 =
16. 16.2 × 9 =
17. 17.571 × 999 =
18. 18.91 × 99 =
19. 19.3 × 9 =
20. 20.22422 × 999 =
21. 21.84 × 99 =
22. 22.8 × 9 =
23. 23.8 × 9 =
24. 24.68 × 9 =
25. 25.227 × 9 =
26. 26.89 × 99 =
27. 27.7 × 9 =
28. 28.219 × 9 =
29. 29.13809 × 999 =
30. 30.205 × 9 =
31. 31.4 × 9 =
32. 32.5 × 9 =
33. 33.84 × 99 =
34. 34.23047 × 999 =
35. 35.73 × 9 =
36. 36.2 × 9 =
37. 37.12 × 99 =
38. 38.41 × 99 =
39. 39.45 × 99 =
40. 40.6376 × 999 =

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