Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 920 · 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. 2.251 × 9 =
3. 3.46 × 99 =
4. 4.53 × 9 =
5. 5.63 × 99 =
6. 6.812 × 999 =
7. 7.754 × 999 =
8. 8.4 × 9 =
9. 9.7 × 9 =
10. 10.4 × 9 =
11. 11.26 × 999 =
12. 12.6 × 9 =
13. 13.65 × 99 =
14. 14.8 × 9 =
15. 15.851 × 999 =
16. 16.7 × 9 =
17. 17.2 × 9 =
18. 18.191 × 9 =
19. 19.27 × 99 =
20. 20.329 × 999 =
21. 21.193 × 9 =
22. 22.53 × 99 =
23. 23.29721 × 999 =
24. 24.21 × 99 =
25. 25.66 × 99 =
26. 26.22 × 99 =
27. 27.19 × 99 =
28. 28.355 × 999 =
29. 29.67 × 9 =
30. 30.6 × 9 =
31. 31.4 × 9 =
32. 32.8 × 9 =
33. 33.17 × 99 =
34. 34.5 × 9 =
35. 35.3 × 9 =
36. 36.958 × 999 =
37. 37.2858 × 99 =
38. 38.7 × 9 =
39. 39.271 × 99 =
40. 40.527 × 999 =

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