Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 936 · 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. 1.41 × 99 =
2. 2.481 × 999 =
3. 3.5 × 9 =
4. 4.929 × 99 =
5. 5.453 × 999 =
6. 6.6 × 9 =
7. 7.251 × 9 =
8. 8.15 × 99 =
9. 9.41 × 99 =
10. 10.2 × 9 =
11. 11.29015 × 999 =
12. 12.2 × 9 =
13. 13.796 × 999 =
14. 14.2 × 99 =
15. 15.427 × 999 =
16. 16.86 × 9 =
17. 17.59 × 99 =
18. 18.51 × 9 =
19. 19.4 × 9 =
20. 20.243 × 999 =
21. 21.7 × 99 =
22. 22.6 × 9 =
23. 23.145 × 999 =
24. 24.7 × 99 =
25. 25.719 × 999 =
26. 26.7 × 9 =
27. 27.5 × 9 =
28. 28.91 × 99 =
29. 29.8 × 9 =
30. 30.2004 × 99 =
31. 31.291 × 99 =
32. 32.133 × 99 =
33. 33.58 × 99 =
34. 34.81 × 9 =
35. 35.2457 × 99 =
36. 36.2 × 9 =
37. 37.13656 × 999 =
38. 38.16 × 99 =
39. 39.2541 × 99 =
40. 40.45 × 9 =

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