Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 677 · 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. 1.38 × 9 =
2. 2.768 × 999 =
3. 3.25 × 99 =
4. 4.86 × 99 =
5. 5.5 × 9 =
6. 6.811 × 99 =
7. 7.4 × 9 =
8. 8.92 × 99 =
9. 9.4524 × 999 =
10. 10.39 × 99 =
11. 11.6 × 9 =
12. 12.3 × 9 =
13. 13.73 × 99 =
14. 14.309 × 99 =
15. 15.2732 × 99 =
16. 16.6 × 9 =
17. 17.221 × 999 =
18. 18.283 × 99 =
19. 19.7 × 9 =
20. 20.12 × 99 =
21. 21.21 × 99 =
22. 22.7 × 99 =
23. 23.906 × 999 =
24. 24.86 × 99 =
25. 25.355 × 99 =
26. 26.93 × 99 =
27. 27.22396 × 999 =
28. 28.82 × 999 =
29. 29.43 × 99 =
30. 30.31 × 9 =
31. 31.595 × 999 =
32. 32.6 × 9 =
33. 33.21 × 99 =
34. 34.8 × 9 =
35. 35.387 × 99 =
36. 36.8 × 9 =
37. 37.1508 × 99 =
38. 38.13238 × 999 =
39. 39.6 × 9 =
40. 40.2 × 9 =

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