Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 911 · 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. 1.28547 × 999 =
2. 2.33 × 99 =
3. 3.14604 × 999 =
4. 4.2037 × 99 =
5. 5.867 × 999 =
6. 6.31 × 9 =
7. 7.977 × 999 =
8. 8.2 × 9 =
9. 9.3 × 9 =
10. 10.3 × 9 =
11. 11.5 × 9 =
12. 12.62 × 99 =
13. 13.61 × 999 =
14. 14.6 × 9 =
15. 15.1751 × 999 =
16. 16.8 × 9 =
17. 17.247 × 9 =
18. 18.3848 × 999 =
19. 19.2 × 9 =
20. 20.41 × 99 =
21. 21.1781 × 999 =
22. 22.933 × 999 =
23. 23.8 × 9 =
24. 24.47 × 9 =
25. 25.4 × 9 =
26. 26.916 × 99 =
27. 27.42 × 999 =
28. 28.205 × 9 =
29. 29.12 × 999 =
30. 30.76 × 99 =
31. 31.55 × 99 =
32. 32.3241 × 999 =
33. 33.826 × 999 =
34. 34.13134 × 999 =
35. 35.34 × 99 =
36. 36.45 × 99 =
37. 37.5 × 9 =
38. 38.15408 × 999 =
39. 39.551 × 999 =
40. 40.7893 × 999 =

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