Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 948 · 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. 1.1027 × 99 =
2. 2.29 × 9 =
3. 3.2731 × 99 =
4. 4.53 × 99 =
5. 5.141 × 999 =
6. 6.69 × 9 =
7. 7.1256 × 999 =
8. 8.14 × 99 =
9. 9.3 × 9 =
10. 10.21 × 99 =
11. 11.3 × 9 =
12. 12.711 × 999 =
13. 13.7 × 9 =
14. 14.7 × 9 =
15. 15.1681 × 99 =
16. 16.161 × 999 =
17. 17.2534 × 99 =
18. 18.594 × 999 =
19. 19.51 × 99 =
20. 20.44 × 99 =
21. 21.15841 × 999 =
22. 22.174 × 999 =
23. 23.98 × 99 =
24. 24.74 × 99 =
25. 25.23 × 999 =
26. 26.598 × 999 =
27. 27.2181 × 99 =
28. 28.278 × 999 =
29. 29.814 × 999 =
30. 30.5 × 9 =
31. 31.4 × 9 =
32. 32.833 × 999 =
33. 33.711 × 999 =
34. 34.42 × 999 =
35. 35.18 × 99 =
36. 36.97 × 9 =
37. 37.49 × 99 =
38. 38.2371 × 99 =
39. 39.177 × 9 =
40. 40.26 × 9 =

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