Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 96 · 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. 2.7 × 9 =
3. 3.265 × 9 =
4. 4.145 × 999 =
5. 5.34 × 99 =
6. 6.1901 × 99 =
7. 7.688 × 999 =
8. 8.5 × 9 =
9. 9.255 × 99 =
10. 10.5 × 9 =
11. 11.17676 × 999 =
12. 12.1758 × 99 =
13. 13.1691 × 99 =
14. 14.1951 × 99 =
15. 15.11 × 99 =
16. 16.7 × 99 =
17. 17.12025 × 999 =
18. 18.53 × 99 =
19. 19.3 × 9 =
20. 20.51 × 99 =
21. 21.22019 × 999 =
22. 22.7 × 9 =
23. 23.2 × 9 =
24. 24.411 × 999 =
25. 25.911 × 99 =
26. 26.722 × 999 =
27. 27.27 × 99 =
28. 28.7 × 9 =
29. 29.77 × 99 =
30. 30.3 × 9 =
31. 31.6 × 9 =
32. 32.81 × 99 =
33. 33.5 × 9 =
34. 34.8 × 9 =
35. 35.6 × 9 =
36. 36.56 × 99 =
37. 37.2 × 9 =
38. 38.114 × 9 =
39. 39.8631 × 999 =
40. 40.2644 × 99 =

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