Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 885 · 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. 1.75 × 9 =
2. 2.506 × 999 =
3. 3.17 × 99 =
4. 4.571 × 999 =
5. 5.916 × 99 =
6. 6.38 × 99 =
7. 7.36 × 99 =
8. 8.96 × 99 =
9. 9.165 × 9 =
10. 10.481 × 999 =
11. 11.86 × 99 =
12. 12.179 × 9 =
13. 13.76 × 99 =
14. 14.33 × 99 =
15. 15.26475 × 999 =
16. 16.116 × 999 =
17. 17.14083 × 999 =
18. 18.71 × 9 =
19. 19.28 × 99 =
20. 20.872 × 999 =
21. 21.452 × 999 =
22. 22.5 × 9 =
23. 23.3 × 999 =
24. 24.21 × 99 =
25. 25.5 × 99 =
26. 26.88 × 99 =
27. 27.1655 × 99 =
28. 28.119 × 9 =
29. 29.3 × 9 =
30. 30.88 × 999 =
31. 31.168 × 9 =
32. 32.961 × 999 =
33. 33.32 × 99 =
34. 34.29 × 9 =
35. 35.6 × 9 =
36. 36.23317 × 999 =
37. 37.12 × 99 =
38. 38.91 × 999 =
39. 39.10971 × 999 =
40. 40.48 × 99 =

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