Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 545 · 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. 1.1304 × 99 =
2. 2.47 × 99 =
3. 3.88 × 99 =
4. 4.29 × 9 =
5. 5.174 × 9 =
6. 6.4 × 9 =
7. 7.225 × 9 =
8. 8.66 × 99 =
9. 9.3 × 9 =
10. 10.6 × 9 =
11. 11.15 × 99 =
12. 12.15 × 99 =
13. 13.89 × 99 =
14. 14.944 × 999 =
15. 15.7 × 9 =
16. 16.4 × 9 =
17. 17.25255 × 999 =
18. 18.5 × 9 =
19. 19.3 × 9 =
20. 20.3 × 9 =
21. 21.6 × 9 =
22. 22.3751 × 999 =
23. 23.12199 × 999 =
24. 24.1806 × 99 =
25. 25.2721 × 99 =
26. 26.731 × 99 =
27. 27.528 × 99 =
28. 28.24 × 99 =
29. 29.2 × 9 =
30. 30.2 × 9 =
31. 31.47 × 99 =
32. 32.3 × 9 =
33. 33.51 × 9 =
34. 34.17 × 99 =
35. 35.94 × 99 =
36. 36.3 × 9 =
37. 37.3 × 9 =
38. 38.21879 × 999 =
39. 39.5 × 9 =
40. 40.5 × 9 =

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