Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 807 · 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. 1.2696 × 99 =
2. 2.6 × 9 =
3. 3.33 × 99 =
4. 4.2 × 9 =
5. 5.16341 × 999 =
6. 6.7 × 9 =
7. 7.92 × 99 =
8. 8.722 × 99 =
9. 9.6 × 99 =
10. 10.4 × 9 =
11. 11.27 × 99 =
12. 12.8606 × 999 =
13. 13.15 × 99 =
14. 14.315 × 999 =
15. 15.921 × 99 =
16. 16.5 × 9 =
17. 17.25 × 99 =
18. 18.98 × 99 =
19. 19.575 × 999 =
20. 20.47 × 99 =
21. 21.25 × 999 =
22. 22.1493 × 99 =
23. 23.211 × 99 =
24. 24.5 × 9 =
25. 25.23925 × 999 =
26. 26.34 × 9 =
27. 27.6 × 9 =
28. 28.227 × 9 =
29. 29.2206 × 999 =
30. 30.56 × 99 =
31. 31.58 × 9 =
32. 32.65 × 99 =
33. 33.12 × 99 =
34. 34.7 × 9 =
35. 35.66 × 99 =
36. 36.5 × 9 =
37. 37.2357 × 99 =
38. 38.1618 × 99 =
39. 39.2 × 99 =
40. 40.198 × 999 =

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