Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 823 · 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. 1.93 × 99 =
2. 2.779 × 999 =
3. 3.8 × 9 =
4. 4.242 × 9 =
5. 5.92 × 99 =
6. 6.272 × 999 =
7. 7.5319 × 999 =
8. 8.612 × 999 =
9. 9.8 × 9 =
10. 10.9067 × 999 =
11. 11.6025 × 999 =
12. 12.218 × 999 =
13. 13.623 × 99 =
14. 14.3 × 9 =
15. 15.3 × 9 =
16. 16.2159 × 999 =
17. 17.591 × 999 =
18. 18.96 × 99 =
19. 19.71 × 99 =
20. 20.2 × 9 =
21. 21.2433 × 999 =
22. 22.89 × 99 =
23. 23.164 × 9 =
24. 24.4 × 9 =
25. 25.54 × 99 =
26. 26.22862 × 999 =
27. 27.3 × 99 =
28. 28.846 × 999 =
29. 29.8 × 9 =
30. 30.608 × 999 =
31. 31.2 × 9 =
32. 32.54 × 999 =
33. 33.654 × 999 =
34. 34.67 × 99 =
35. 35.5 × 9 =
36. 36.33 × 999 =
37. 37.244 × 9 =
38. 38.101 × 9 =
39. 39.91 × 99 =
40. 40.7 × 9 =

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