Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 137 · 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. 1.16 × 99 =
2. 2.5 × 9 =
3. 3.26612 × 999 =
4. 4.233 × 9 =
5. 5.2838 × 99 =
6. 6.89 × 99 =
7. 7.146 × 999 =
8. 8.8 × 9 =
9. 9.4 × 9 =
10. 10.104 × 99 =
11. 11.8 × 9 =
12. 12.146 × 9 =
13. 13.9 × 99 =
14. 14.2 × 9 =
15. 15.26 × 99 =
16. 16.79 × 99 =
17. 17.393 × 999 =
18. 18.331 × 99 =
19. 19.238 × 999 =
20. 20.6 × 9 =
21. 21.65 × 99 =
22. 22.412 × 999 =
23. 23.57 × 99 =
24. 24.37 × 99 =
25. 25.3 × 9 =
26. 26.692 × 999 =
27. 27.392 × 999 =
28. 28.36 × 99 =
29. 29.32 × 99 =
30. 30.204 × 9 =
31. 31.181 × 9 =
32. 32.813 × 999 =
33. 33.919 × 999 =
34. 34.73 × 99 =
35. 35.234 × 9 =
36. 36.458 × 99 =
37. 37.186 × 9 =
38. 38.497 × 999 =
39. 39.83 × 99 =
40. 40.8 × 9 =

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