Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 136 · 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. 1.4 × 9 =
2. 2.28 × 99 =
3. 3.916 × 999 =
4. 4.6 × 9 =
5. 5.839 × 999 =
6. 6.717 × 999 =
7. 7.122 × 999 =
8. 8.1739 × 99 =
9. 9.99 × 9 =
10. 10.939 × 999 =
11. 11.271 × 9 =
12. 12.17964 × 999 =
13. 13.67 × 9 =
14. 14.29 × 99 =
15. 15.681 × 999 =
16. 16.936 × 999 =
17. 17.3 × 9 =
18. 18.6 × 9 =
19. 19.5111 × 999 =
20. 20.549 × 999 =
21. 21.152 × 999 =
22. 22.2 × 99 =
23. 23.532 × 999 =
24. 24.43 × 99 =
25. 25.4 × 9 =
26. 26.2 × 9 =
27. 27.13 × 99 =
28. 28.61 × 99 =
29. 29.225 × 9 =
30. 30.2874 × 99 =
31. 31.87 × 99 =
32. 32.5 × 99 =
33. 33.357 × 999 =
34. 34.78 × 99 =
35. 35.242 × 999 =
36. 36.64 × 99 =
37. 37.128 × 999 =
38. 38.61 × 99 =
39. 39.2631 × 99 =
40. 40.24341 × 999 =

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