Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 754 · 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. 1.514 × 999 =
2. 2.1645 × 99 =
3. 3.66 × 99 =
4. 4.224 × 999 =
5. 5.828 × 999 =
6. 6.11651 × 999 =
7. 7.5 × 9 =
8. 8.24729 × 999 =
9. 9.7 × 9 =
10. 10.846 × 99 =
11. 11.87 × 9 =
12. 12.172 × 9 =
13. 13.977 × 999 =
14. 14.93 × 99 =
15. 15.4 × 9 =
16. 16.81 × 99 =
17. 17.2 × 9 =
18. 18.55 × 99 =
19. 19.7 × 9 =
20. 20.75 × 999 =
21. 21.104 × 999 =
22. 22.46 × 99 =
23. 23.2713 × 99 =
24. 24.951 × 99 =
25. 25.349 × 999 =
26. 26.2 × 9 =
27. 27.644 × 999 =
28. 28.756 × 999 =
29. 29.23146 × 999 =
30. 30.691 × 999 =
31. 31.2696 × 99 =
32. 32.2793 × 999 =
33. 33.2 × 9 =
34. 34.8 × 9 =
35. 35.7 × 9 =
36. 36.63 × 99 =
37. 37.4 × 9 =
38. 38.544 × 999 =
39. 39.7 × 9 =
40. 40.819 × 999 =

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