Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 485 · 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. 1.11 × 99 =
2. 2.217 × 9 =
3. 3.58 × 99 =
4. 4.8 × 9 =
5. 5.7 × 9 =
6. 6.71 × 9 =
7. 7.4 × 9 =
8. 8.8 × 9 =
9. 9.37 × 99 =
10. 10.2 × 99 =
11. 11.4 × 9 =
12. 12.35 × 99 =
13. 13.73 × 99 =
14. 14.75 × 99 =
15. 15.933 × 99 =
16. 16.25731 × 999 =
17. 17.52 × 99 =
18. 18.198 × 9 =
19. 19.4 × 9 =
20. 20.251 × 9 =
21. 21.315 × 999 =
22. 22.2154 × 99 =
23. 23.451 × 999 =
24. 24.33 × 99 =
25. 25.2019 × 99 =
26. 26.902 × 999 =
27. 27.41 × 99 =
28. 28.197 × 999 =
29. 29.32 × 99 =
30. 30.51 × 9 =
31. 31.25389 × 999 =
32. 32.62 × 99 =
33. 33.12 × 99 =
34. 34.216 × 999 =
35. 35.88 × 99 =
36. 36.8 × 9 =
37. 37.31 × 99 =
38. 38.251 × 9 =
39. 39.5 × 9 =
40. 40.29944 × 999 =

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