Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 69 · 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. 1.7772 × 999 =
2. 2.2012 × 99 =
3. 3.62 × 99 =
4. 4.49 × 99 =
5. 5.53 × 99 =
6. 6.2788 × 99 =
7. 7.29 × 99 =
8. 8.17039 × 999 =
9. 9.17 × 99 =
10. 10.32 × 99 =
11. 11.5676 × 999 =
12. 12.45 × 99 =
13. 13.4 × 9 =
14. 14.46 × 99 =
15. 15.54 × 99 =
16. 16.517 × 999 =
17. 17.163 × 999 =
18. 18.31 × 99 =
19. 19.59 × 99 =
20. 20.2 × 9 =
21. 21.838 × 999 =
22. 22.531 × 999 =
23. 23.8 × 9 =
24. 24.761 × 99 =
25. 25.273 × 999 =
26. 26.228 × 999 =
27. 27.2 × 9 =
28. 28.79 × 9 =
29. 29.2637 × 99 =
30. 30.249 × 9 =
31. 31.3 × 9 =
32. 32.191 × 9 =
33. 33.37 × 99 =
34. 34.8 × 9 =
35. 35.53 × 99 =
36. 36.1631 × 99 =
37. 37.616 × 999 =
38. 38.289 × 999 =
39. 39.7 × 9 =
40. 40.673 × 999 =

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