Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 572 · 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. 1.855 × 999 =
2. 2.42 × 99 =
3. 3.908 × 99 =
4. 4.437 × 99 =
5. 5.126 × 9 =
6. 6.4 × 9 =
7. 7.82 × 999 =
8. 8.85 × 99 =
9. 9.31 × 99 =
10. 10.911 × 999 =
11. 11.126 × 999 =
12. 12.6 × 9 =
13. 13.15108 × 999 =
14. 14.6 × 9 =
15. 15.2865 × 99 =
16. 16.55 × 99 =
17. 17.5 × 9 =
18. 18.2629 × 99 =
19. 19.11 × 99 =
20. 20.92 × 99 =
21. 21.56 × 99 =
22. 22.14 × 99 =
23. 23.763 × 99 =
24. 24.76 × 99 =
25. 25.141 × 9 =
26. 26.25 × 99 =
27. 27.4 × 9 =
28. 28.18 × 99 =
29. 29.4 × 9 =
30. 30.471 × 999 =
31. 31.281 × 999 =
32. 32.267 × 9 =
33. 33.7 × 9 =
34. 34.3 × 9 =
35. 35.26288 × 999 =
36. 36.4 × 9 =
37. 37.5 × 9 =
38. 38.2357 × 99 =
39. 39.51 × 9 =
40. 40.2899 × 99 =

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