Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 913 · 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. 1.3 × 9 =
2. 2.73 × 99 =
3. 3.1669 × 99 =
4. 4.33 × 99 =
5. 5.5 × 9 =
6. 6.2 × 9 =
7. 7.2026 × 99 =
8. 8.5 × 9 =
9. 9.3 × 9 =
10. 10.98 × 99 =
11. 11.962 × 99 =
12. 12.23801 × 999 =
13. 13.33 × 99 =
14. 14.1739 × 99 =
15. 15.27 × 99 =
16. 16.421 × 999 =
17. 17.2593 × 99 =
18. 18.184 × 9 =
19. 19.1763 × 99 =
20. 20.2474 × 99 =
21. 21.6 × 99 =
22. 22.32 × 99 =
23. 23.8 × 9 =
24. 24.29481 × 999 =
25. 25.359 × 999 =
26. 26.2345 × 99 =
27. 27.153 × 999 =
28. 28.66 × 99 =
29. 29.31 × 99 =
30. 30.22747 × 999 =
31. 31.377 × 999 =
32. 32.773 × 999 =
33. 33.183 × 999 =
34. 34.2 × 9 =
35. 35.82 × 99 =
36. 36.7 × 9 =
37. 37.253 × 9 =
38. 38.3 × 9 =
39. 39.91 × 99 =
40. 40.608 × 999 =

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