Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 769 · 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. 1.468 × 999 =
2. 2.16 × 99 =
3. 3.135 × 999 =
4. 4.231 × 99 =
5. 5.83 × 9 =
6. 6.2962 × 99 =
7. 7.69 × 99 =
8. 8.5 × 9 =
9. 9.7 × 9 =
10. 10.4 × 9 =
11. 11.2 × 9 =
12. 12.25 × 99 =
13. 13.173 × 999 =
14. 14.4 × 9 =
15. 15.8 × 9 =
16. 16.298 × 999 =
17. 17.4 × 9 =
18. 18.3 × 9 =
19. 19.215 × 999 =
20. 20.31 × 99 =
21. 21.3 × 9 =
22. 22.648 × 999 =
23. 23.509 × 999 =
24. 24.1493 × 99 =
25. 25.1427 × 99 =
26. 26.31 × 99 =
27. 27.1709 × 99 =
28. 28.3 × 9 =
29. 29.3 × 9 =
30. 30.91 × 99 =
31. 31.1261 × 99 =
32. 32.47 × 99 =
33. 33.139 × 9 =
34. 34.5 × 9 =
35. 35.8 × 9 =
36. 36.7 × 9 =
37. 37.44 × 99 =
38. 38.124 × 9 =
39. 39.6 × 9 =
40. 40.594 × 99 =

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