Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 785 · 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. 1.8125 × 999 =
2. 2.222 × 999 =
3. 3.4 × 9 =
4. 4.75 × 99 =
5. 5.21 × 99 =
6. 6.68 × 99 =
7. 7.4 × 9 =
8. 8.559 × 99 =
9. 9.3 × 9 =
10. 10.27 × 999 =
11. 11.81 × 99 =
12. 12.17081 × 999 =
13. 13.4 × 9 =
14. 14.4 × 9 =
15. 15.3 × 9 =
16. 16.19 × 99 =
17. 17.96 × 99 =
18. 18.67 × 99 =
19. 19.95 × 99 =
20. 20.23 × 99 =
21. 21.131 × 9 =
22. 22.7 × 9 =
23. 23.59 × 99 =
24. 24.4 × 9 =
25. 25.54 × 99 =
26. 26.3 × 9 =
27. 27.888 × 999 =
28. 28.94 × 99 =
29. 29.142 × 999 =
30. 30.126 × 9 =
31. 31.1224 × 99 =
32. 32.173 × 9 =
33. 33.579 × 999 =
34. 34.8 × 9 =
35. 35.5 × 9 =
36. 36.118 × 999 =
37. 37.5 × 9 =
38. 38.571 × 999 =
39. 39.71 × 99 =
40. 40.14271 × 999 =

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