Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 762 · 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. 1.36 × 99 =
2. 2.8 × 9 =
3. 3.25 × 99 =
4. 4.3 × 9 =
5. 5.238 × 9 =
6. 6.923 × 999 =
7. 7.311 × 999 =
8. 8.151 × 9 =
9. 9.1863 × 99 =
10. 10.26 × 999 =
11. 11.158 × 999 =
12. 12.3 × 9 =
13. 13.839 × 999 =
14. 14.7 × 9 =
15. 15.2767 × 99 =
16. 16.65 × 99 =
17. 17.3 × 99 =
18. 18.4996 × 999 =
19. 19.3 × 9 =
20. 20.2 × 9 =
21. 21.98 × 99 =
22. 22.2101 × 99 =
23. 23.223 × 999 =
24. 24.14049 × 999 =
25. 25.242 × 9 =
26. 26.1001 × 99 =
27. 27.3 × 9 =
28. 28.5 × 9 =
29. 29.669 × 999 =
30. 30.65 × 99 =
31. 31.269 × 9 =
32. 32.39 × 9 =
33. 33.86 × 99 =
34. 34.13 × 99 =
35. 35.57 × 999 =
36. 36.4225 × 999 =
37. 37.2236 × 99 =
38. 38.31 × 99 =
39. 39.243 × 999 =
40. 40.96 × 99 =

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