Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 804 · 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. 1.84 × 99 =
2. 2.501 × 99 =
3. 3.1467 × 99 =
4. 4.49 × 99 =
5. 5.28 × 999 =
6. 6.8 × 9 =
7. 7.36 × 99 =
8. 8.59 × 99 =
9. 9.149 × 9 =
10. 10.47 × 99 =
11. 11.15571 × 999 =
12. 12.881 × 99 =
13. 13.116 × 999 =
14. 14.266 × 9 =
15. 15.4 × 9 =
16. 16.17 × 99 =
17. 17.6 × 9 =
18. 18.139 × 9 =
19. 19.2738 × 99 =
20. 20.81 × 99 =
21. 21.253 × 9 =
22. 22.18873 × 999 =
23. 23.1466 × 99 =
24. 24.255 × 9 =
25. 25.16946 × 999 =
26. 26.27 × 999 =
27. 27.2 × 9 =
28. 28.104 × 9 =
29. 29.281 × 999 =
30. 30.2595 × 99 =
31. 31.2 × 9 =
32. 32.619 × 999 =
33. 33.7 × 9 =
34. 34.61 × 99 =
35. 35.95 × 99 =
36. 36.4 × 9 =
37. 37.82 × 99 =
38. 38.91 × 99 =
39. 39.323 × 999 =
40. 40.5 × 9 =

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