Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 183 · 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. 1.265 × 9 =
2. 2.6 × 9 =
3. 3.25986 × 999 =
4. 4.248 × 9 =
5. 5.12183 × 999 =
6. 6.17 × 99 =
7. 7.334 × 999 =
8. 8.6 × 9 =
9. 9.218 × 9 =
10. 10.881 × 999 =
11. 11.96 × 99 =
12. 12.144 × 999 =
13. 13.39 × 99 =
14. 14.166 × 999 =
15. 15.441 × 999 =
16. 16.397 × 999 =
17. 17.21091 × 999 =
18. 18.19112 × 999 =
19. 19.29128 × 999 =
20. 20.5 × 99 =
21. 21.171 × 9 =
22. 22.8 × 9 =
23. 23.3 × 9 =
24. 24.2 × 9 =
25. 25.65 × 999 =
26. 26.77 × 99 =
27. 27.5 × 99 =
28. 28.736 × 999 =
29. 29.4 × 9 =
30. 30.53 × 9 =
31. 31.792 × 999 =
32. 32.8 × 9 =
33. 33.102 × 999 =
34. 34.202 × 9 =
35. 35.5 × 9 =
36. 36.7 × 9 =
37. 37.206 × 9 =
38. 38.141 × 9 =
39. 39.874 × 999 =
40. 40.958 × 999 =

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