Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 115 · 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. 1.821 × 999 =
2. 2.369 × 999 =
3. 3.7 × 9 =
4. 4.23 × 99 =
5. 5.21075 × 999 =
6. 6.38 × 99 =
7. 7.28 × 99 =
8. 8.8 × 9 =
9. 9.1762 × 99 =
10. 10.8 × 9 =
11. 11.248 × 9 =
12. 12.7 × 9 =
13. 13.4 × 9 =
14. 14.971 × 999 =
15. 15.663 × 999 =
16. 16.7 × 9 =
17. 17.149 × 999 =
18. 18.826 × 999 =
19. 19.36 × 99 =
20. 20.41 × 99 =
21. 21.4649 × 999 =
22. 22.14113 × 999 =
23. 23.51 × 99 =
24. 24.132 × 9 =
25. 25.4 × 9 =
26. 26.161 × 999 =
27. 27.3 × 9 =
28. 28.67 × 99 =
29. 29.157 × 9 =
30. 30.6 × 9 =
31. 31.3 × 9 =
32. 32.235 × 9 =
33. 33.56 × 9 =
34. 34.88 × 99 =
35. 35.215 × 9 =
36. 36.271 × 99 =
37. 37.574 × 999 =
38. 38.6 × 9 =
39. 39.15 × 99 =
40. 40.77 × 99 =

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