Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 381 · 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. 1.96 × 999 =
2. 2.866 × 999 =
3. 3.1434 × 99 =
4. 4.851 × 99 =
5. 5.54 × 99 =
6. 6.65 × 99 =
7. 7.5 × 9 =
8. 8.1699 × 99 =
9. 9.2 × 9 =
10. 10.229 × 999 =
11. 11.47 × 99 =
12. 12.67 × 99 =
13. 13.55 × 99 =
14. 14.521 × 999 =
15. 15.6 × 9 =
16. 16.153 × 9 =
17. 17.17 × 999 =
18. 18.2 × 9 =
19. 19.41 × 9 =
20. 20.154 × 999 =
21. 21.577 × 99 =
22. 22.981 × 999 =
23. 23.98 × 99 =
24. 24.1455 × 99 =
25. 25.7964 × 999 =
26. 26.13 × 99 =
27. 27.775 × 999 =
28. 28.806 × 999 =
29. 29.2895 × 99 =
30. 30.47 × 99 =
31. 31.56 × 99 =
32. 32.21 × 99 =
33. 33.1152 × 99 =
34. 34.24 × 99 =
35. 35.504 × 999 =
36. 36.1587 × 99 =
37. 37.1039 × 99 =
38. 38.3 × 9 =
39. 39.43 × 99 =
40. 40.11 × 99 =

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