Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 51 · 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. 1.14793 × 999 =
2. 2.2 × 9 =
3. 3.8 × 9 =
4. 4.546 × 999 =
5. 5.4 × 9 =
6. 6.72 × 99 =
7. 7.83 × 99 =
8. 8.27 × 999 =
9. 9.31 × 99 =
10. 10.179 × 9 =
11. 11.89 × 99 =
12. 12.24 × 99 =
13. 13.9 × 99 =
14. 14.106 × 9 =
15. 15.2 × 9 =
16. 16.29906 × 999 =
17. 17.74 × 99 =
18. 18.21 × 99 =
19. 19.51 × 999 =
20. 20.53 × 9 =
21. 21.2 × 9 =
22. 22.885 × 99 =
23. 23.841 × 999 =
24. 24.4 × 9 =
25. 25.736 × 999 =
26. 26.629 × 999 =
27. 27.32 × 99 =
28. 28.558 × 999 =
29. 29.871 × 999 =
30. 30.17 × 99 =
31. 31.694 × 999 =
32. 32.54 × 99 =
33. 33.36 × 99 =
34. 34.2 × 9 =
35. 35.63 × 999 =
36. 36.105 × 99 =
37. 37.201 × 999 =
38. 38.236 × 999 =
39. 39.32 × 99 =
40. 40.8 × 9 =

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