Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 82 · 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. 1.6 × 9 =
2. 2.6 × 9 =
3. 3.61 × 99 =
4. 4.18 × 99 =
5. 5.3 × 99 =
6. 6.3 × 9 =
7. 7.13371 × 999 =
8. 8.3 × 9 =
9. 9.192 × 999 =
10. 10.49 × 99 =
11. 11.8 × 99 =
12. 12.2 × 9 =
13. 13.7 × 9 =
14. 14.2 × 99 =
15. 15.27653 × 999 =
16. 16.18049 × 999 =
17. 17.74 × 99 =
18. 18.2 × 9 =
19. 19.27 × 99 =
20. 20.2 × 9 =
21. 21.407 × 999 =
22. 22.24 × 99 =
23. 23.885 × 999 =
24. 24.8 × 9 =
25. 25.8 × 9 =
26. 26.31 × 99 =
27. 27.87 × 99 =
28. 28.251 × 999 =
29. 29.391 × 999 =
30. 30.17 × 99 =
31. 31.3 × 9 =
32. 32.16211 × 999 =
33. 33.83 × 99 =
34. 34.4 × 9 =
35. 35.731 × 999 =
36. 36.2135 × 99 =
37. 37.11098 × 999 =
38. 38.2877 × 99 =
39. 39.4 × 9 =
40. 40.1961 × 99 =

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