Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 343 · 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. 1.59 × 99 =
2. 2.255 × 999 =
3. 3.475 × 999 =
4. 4.4 × 9 =
5. 5.8 × 9 =
6. 6.65 × 99 =
7. 7.145 × 9 =
8. 8.716 × 999 =
9. 9.1794 × 99 =
10. 10.2 × 9 =
11. 11.959 × 999 =
12. 12.28914 × 999 =
13. 13.913 × 999 =
14. 14.81 × 99 =
15. 15.26 × 9 =
16. 16.75 × 99 =
17. 17.1117 × 99 =
18. 18.2559 × 99 =
19. 19.76 × 99 =
20. 20.391 × 99 =
21. 21.23105 × 999 =
22. 22.6 × 9 =
23. 23.75 × 99 =
24. 24.61 × 9 =
25. 25.39 × 99 =
26. 26.71 × 9 =
27. 27.79 × 99 =
28. 28.271 × 999 =
29. 29.47 × 999 =
30. 30.165 × 9 =
31. 31.725 × 999 =
32. 32.141 × 9 =
33. 33.6 × 9 =
34. 34.1015 × 99 =
35. 35.64 × 99 =
36. 36.81 × 99 =
37. 37.89 × 999 =
38. 38.3 × 9 =
39. 39.549 × 999 =
40. 40.84 × 999 =

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