Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 189 · 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. 2.18575 × 999 =
3. 3.904 × 999 =
4. 4.16 × 99 =
5. 5.4 × 9 =
6. 6.2 × 9 =
7. 7.7977 × 999 =
8. 8.96 × 99 =
9. 9.217 × 999 =
10. 10.2 × 9 =
11. 11.1847 × 99 =
12. 12.6992 × 999 =
13. 13.3645 × 999 =
14. 14.7 × 9 =
15. 15.3 × 9 =
16. 16.7 × 9 =
17. 17.36 × 99 =
18. 18.53 × 99 =
19. 19.877 × 99 =
20. 20.941 × 999 =
21. 21.8 × 9 =
22. 22.2677 × 99 =
23. 23.3 × 99 =
24. 24.88 × 99 =
25. 25.91 × 99 =
26. 26.7 × 9 =
27. 27.25 × 99 =
28. 28.907 × 999 =
29. 29.26287 × 999 =
30. 30.1417 × 99 =
31. 31.93 × 99 =
32. 32.5 × 9 =
33. 33.31 × 99 =
34. 34.59 × 9 =
35. 35.381 × 99 =
36. 36.1012 × 99 =
37. 37.454 × 999 =
38. 38.8 × 9 =
39. 39.19 × 99 =
40. 40.12 × 99 =

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