Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 580 · 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. 1.25941 × 999 =
2. 2.107 × 9 =
3. 3.8 × 9 =
4. 4.11 × 999 =
5. 5.481 × 999 =
6. 6.5 × 9 =
7. 7.8 × 9 =
8. 8.253 × 9 =
9. 9.11 × 99 =
10. 10.81 × 9 =
11. 11.542 × 999 =
12. 12.333 × 999 =
13. 13.508 × 999 =
14. 14.2198 × 99 =
15. 15.781 × 999 =
16. 16.3 × 99 =
17. 17.391 × 999 =
18. 18.77 × 99 =
19. 19.38 × 999 =
20. 20.72 × 999 =
21. 21.2303 × 99 =
22. 22.25651 × 999 =
23. 23.109 × 9 =
24. 24.27 × 99 =
25. 25.3 × 9 =
26. 26.37 × 9 =
27. 27.91 × 99 =
28. 28.85 × 99 =
29. 29.31 × 99 =
30. 30.7 × 9 =
31. 31.13 × 99 =
32. 32.8 × 9 =
33. 33.4 × 9 =
34. 34.515 × 999 =
35. 35.61 × 99 =
36. 36.8 × 9 =
37. 37.31 × 99 =
38. 38.14 × 99 =
39. 39.17 × 99 =
40. 40.2 × 9 =

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