Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 461 · 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. 1.75 × 999 =
2. 2.1471 × 99 =
3. 3.59 × 99 =
4. 4.2 × 9 =
5. 5.26 × 99 =
6. 6.10401 × 999 =
7. 7.725 × 999 =
8. 8.8 × 9 =
9. 9.5 × 9 =
10. 10.12837 × 999 =
11. 11.19155 × 999 =
12. 12.2521 × 99 =
13. 13.1431 × 99 =
14. 14.204 × 999 =
15. 15.41 × 9 =
16. 16.4 × 9 =
17. 17.605 × 999 =
18. 18.2338 × 99 =
19. 19.13139 × 999 =
20. 20.3 × 9 =
21. 21.1233 × 99 =
22. 22.4 × 9 =
23. 23.2 × 9 =
24. 24.2458 × 99 =
25. 25.2 × 9 =
26. 26.71 × 99 =
27. 27.64 × 99 =
28. 28.222 × 999 =
29. 29.5 × 9 =
30. 30.121 × 999 =
31. 31.163 × 9 =
32. 32.1056 × 99 =
33. 33.78 × 99 =
34. 34.341 × 999 =
35. 35.46 × 99 =
36. 36.126 × 999 =
37. 37.178 × 999 =
38. 38.4 × 9 =
39. 39.54 × 99 =
40. 40.2 × 9 =

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