Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 98 · 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. 1.26581 × 999 =
2. 2.142 × 9 =
3. 3.34 × 99 =
4. 4.28523 × 999 =
5. 5.952 × 999 =
6. 6.8 × 99 =
7. 7.21669 × 999 =
8. 8.53 × 99 =
9. 9.174 × 9 =
10. 10.3 × 9 =
11. 11.6 × 9 =
12. 12.12 × 9 =
13. 13.1984 × 99 =
14. 14.20242 × 999 =
15. 15.10079 × 999 =
16. 16.6 × 99 =
17. 17.136 × 999 =
18. 18.13 × 99 =
19. 19.719 × 999 =
20. 20.4 × 9 =
21. 21.17 × 99 =
22. 22.43 × 99 =
23. 23.47 × 99 =
24. 24.4 × 9 =
25. 25.4 × 9 =
26. 26.51 × 99 =
27. 27.497 × 999 =
28. 28.2631 × 99 =
29. 29.2899 × 99 =
30. 30.47 × 9 =
31. 31.151 × 999 =
32. 32.393 × 999 =
33. 33.165 × 9 =
34. 34.171 × 9 =
35. 35.39 × 99 =
36. 36.5 × 9 =
37. 37.239 × 9 =
38. 38.32 × 99 =
39. 39.48 × 9 =
40. 40.41 × 99 =

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