Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 348 · 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. 1.114 × 9 =
2. 2.7 × 9 =
3. 3.19799 × 999 =
4. 4.8 × 9 =
5. 5.28371 × 999 =
6. 6.6 × 99 =
7. 7.26 × 99 =
8. 8.151 × 9 =
9. 9.75 × 99 =
10. 10.13 × 99 =
11. 11.16 × 99 =
12. 12.14567 × 999 =
13. 13.391 × 999 =
14. 14.25546 × 999 =
15. 15.54 × 99 =
16. 16.57 × 99 =
17. 17.44 × 99 =
18. 18.8 × 9 =
19. 19.19 × 99 =
20. 20.18 × 99 =
21. 21.88 × 999 =
22. 22.31 × 9 =
23. 23.45 × 99 =
24. 24.181 × 999 =
25. 25.223 × 9 =
26. 26.2585 × 99 =
27. 27.481 × 999 =
28. 28.11426 × 999 =
29. 29.184 × 9 =
30. 30.88 × 99 =
31. 31.23 × 99 =
32. 32.2 × 9 =
33. 33.2 × 9 =
34. 34.2926 × 99 =
35. 35.5 × 9 =
36. 36.289 × 999 =
37. 37.1206 × 99 =
38. 38.146 × 9 =
39. 39.19675 × 999 =
40. 40.5 × 99 =

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