Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 210 · 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. 1.25543 × 999 =
2. 2.4 × 9 =
3. 3.8 × 9 =
4. 4.7 × 9 =
5. 5.88 × 99 =
6. 6.6 × 9 =
7. 7.101 × 9 =
8. 8.18 × 99 =
9. 9.118 × 999 =
10. 10.345 × 999 =
11. 11.8 × 9 =
12. 12.2 × 9 =
13. 13.72 × 99 =
14. 14.24 × 99 =
15. 15.8 × 9 =
16. 16.56 × 99 =
17. 17.11 × 99 =
18. 18.173 × 9 =
19. 19.29 × 99 =
20. 20.36 × 999 =
21. 21.7 × 9 =
22. 22.66 × 99 =
23. 23.121 × 999 =
24. 24.269 × 9 =
25. 25.76 × 99 =
26. 26.43 × 99 =
27. 27.3 × 9 =
28. 28.186 × 999 =
29. 29.591 × 999 =
30. 30.16773 × 999 =
31. 31.481 × 999 =
32. 32.24 × 99 =
33. 33.5 × 9 =
34. 34.411 × 99 =
35. 35.5 × 9 =
36. 36.29 × 99 =
37. 37.245 × 999 =
38. 38.4 × 9 =
39. 39.3 × 9 =
40. 40.29 × 99 =

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