Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 615 · 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. 1.1546 × 99 =
2. 2.13717 × 999 =
3. 3.41 × 99 =
4. 4.34 × 99 =
5. 5.21 × 99 =
6. 6.345 × 999 =
7. 7.37 × 99 =
8. 8.3 × 9 =
9. 9.8 × 9 =
10. 10.4 × 9 =
11. 11.9 × 99 =
12. 12.85 × 99 =
13. 13.24 × 999 =
14. 14.34 × 99 =
15. 15.3 × 9 =
16. 16.6 × 9 =
17. 17.193 × 999 =
18. 18.4 × 99 =
19. 19.7 × 9 =
20. 20.4 × 9 =
21. 21.5 × 9 =
22. 22.2 × 9 =
23. 23.62 × 99 =
24. 24.89 × 99 =
25. 25.5 × 9 =
26. 26.4 × 9 =
27. 27.161 × 999 =
28. 28.6 × 9 =
29. 29.84 × 99 =
30. 30.642 × 999 =
31. 31.3 × 9 =
32. 32.14986 × 999 =
33. 33.32 × 99 =
34. 34.2 × 9 =
35. 35.2912 × 99 =
36. 36.24957 × 999 =
37. 37.235 × 9 =
38. 38.8 × 9 =
39. 39.2667 × 99 =
40. 40.33 × 99 =

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