Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 727 · 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. 1.26 × 9 =
2. 2.81 × 99 =
3. 3.2 × 9 =
4. 4.1008 × 99 =
5. 5.4 × 99 =
6. 6.3 × 9 =
7. 7.14 × 99 =
8. 8.5744 × 999 =
9. 9.68 × 99 =
10. 10.58 × 9 =
11. 11.4 × 9 =
12. 12.6 × 9 =
13. 13.778 × 999 =
14. 14.4 × 9 =
15. 15.5 × 99 =
16. 16.149 × 999 =
17. 17.694 × 999 =
18. 18.82 × 99 =
19. 19.132 × 99 =
20. 20.7 × 99 =
21. 21.3094 × 999 =
22. 22.10094 × 999 =
23. 23.2061 × 99 =
24. 24.2041 × 99 =
25. 25.48 × 99 =
26. 26.54 × 9 =
27. 27.27 × 99 =
28. 28.219 × 999 =
29. 29.2 × 99 =
30. 30.2 × 9 =
31. 31.19 × 99 =
32. 32.2429 × 99 =
33. 33.3 × 9 =
34. 34.91 × 99 =
35. 35.983 × 999 =
36. 36.4 × 9 =
37. 37.3 × 9 =
38. 38.77 × 99 =
39. 39.25104 × 999 =
40. 40.741 × 999 =

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