Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 675 · 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. 1.991 × 999 =
2. 2.75 × 99 =
3. 3.37 × 9 =
4. 4.638 × 999 =
5. 5.26 × 99 =
6. 6.593 × 999 =
7. 7.2 × 9 =
8. 8.136 × 9 =
9. 9.27802 × 999 =
10. 10.847 × 999 =
11. 11.27 × 99 =
12. 12.41 × 99 =
13. 13.27033 × 999 =
14. 14.5 × 9 =
15. 15.76 × 99 =
16. 16.1913 × 99 =
17. 17.619 × 99 =
18. 18.227 × 999 =
19. 19.2 × 9 =
20. 20.627 × 99 =
21. 21.8 × 9 =
22. 22.25338 × 999 =
23. 23.6 × 9 =
24. 24.837 × 999 =
25. 25.988 × 999 =
26. 26.2737 × 99 =
27. 27.8 × 9 =
28. 28.32 × 999 =
29. 29.63 × 99 =
30. 30.33 × 999 =
31. 31.61 × 999 =
32. 32.3 × 9 =
33. 33.4 × 9 =
34. 34.81 × 9 =
35. 35.2345 × 99 =
36. 36.4 × 9 =
37. 37.51 × 999 =
38. 38.949 × 99 =
39. 39.34 × 9 =
40. 40.1827 × 99 =

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