Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 227 · 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. 1.864 × 999 =
2. 2.279 × 999 =
3. 3.2742 × 99 =
4. 4.10604 × 999 =
5. 5.28714 × 999 =
6. 6.423 × 999 =
7. 7.82 × 99 =
8. 8.56 × 99 =
9. 9.7 × 9 =
10. 10.339 × 999 =
11. 11.835 × 99 =
12. 12.32 × 99 =
13. 13.6 × 9 =
14. 14.2 × 9 =
15. 15.143 × 9 =
16. 16.53 × 999 =
17. 17.59 × 9 =
18. 18.22 × 99 =
19. 19.108 × 9 =
20. 20.19 × 99 =
21. 21.356 × 999 =
22. 22.38 × 99 =
23. 23.12257 × 999 =
24. 24.71 × 99 =
25. 25.4255 × 999 =
26. 26.68 × 99 =
27. 27.216 × 999 =
28. 28.7 × 9 =
29. 29.4 × 9 =
30. 30.151 × 9 =
31. 31.12771 × 999 =
32. 32.5129 × 999 =
33. 33.155 × 9 =
34. 34.2 × 9 =
35. 35.143 × 9 =
36. 36.37 × 99 =
37. 37.17 × 99 =
38. 38.299 × 999 =
39. 39.2 × 9 =
40. 40.6 × 9 =

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