Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 813 · 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. 1.94 × 99 =
2. 2.256 × 99 =
3. 3.28 × 99 =
4. 4.315 × 999 =
5. 5.674 × 999 =
6. 6.881 × 999 =
7. 7.35 × 99 =
8. 8.37 × 99 =
9. 9.2 × 9 =
10. 10.88 × 99 =
11. 11.44 × 9 =
12. 12.77 × 99 =
13. 13.3 × 9 =
14. 14.1145 × 99 =
15. 15.26 × 99 =
16. 16.31 × 99 =
17. 17.33 × 99 =
18. 18.96 × 9 =
19. 19.69 × 99 =
20. 20.244 × 9 =
21. 21.357 × 999 =
22. 22.1234 × 99 =
23. 23.5 × 99 =
24. 24.7 × 9 =
25. 25.54 × 99 =
26. 26.46 × 99 =
27. 27.16655 × 999 =
28. 28.357 × 999 =
29. 29.107 × 99 =
30. 30.879 × 99 =
31. 31.13 × 9 =
32. 32.2511 × 99 =
33. 33.34 × 99 =
34. 34.5 × 9 =
35. 35.1571 × 99 =
36. 36.147 × 9 =
37. 37.3741 × 999 =
38. 38.504 × 999 =
39. 39.88 × 99 =
40. 40.81 × 99 =

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