Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 539 · 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. 1.177 × 9 =
2. 2.33 × 99 =
3. 3.429 × 999 =
4. 4.908 × 999 =
5. 5.57 × 99 =
6. 6.216 × 999 =
7. 7.574 × 999 =
8. 8.265 × 9 =
9. 9.24053 × 999 =
10. 10.23799 × 999 =
11. 11.93 × 999 =
12. 12.3 × 9 =
13. 13.26 × 9 =
14. 14.9 × 99 =
15. 15.27012 × 999 =
16. 16.4 × 9 =
17. 17.567 × 999 =
18. 18.3 × 9 =
19. 19.28 × 99 =
20. 20.57 × 99 =
21. 21.11 × 99 =
22. 22.301 × 999 =
23. 23.5 × 9 =
24. 24.5 × 9 =
25. 25.5 × 9 =
26. 26.24658 × 999 =
27. 27.418 × 999 =
28. 28.25 × 99 =
29. 29.33 × 99 =
30. 30.25 × 99 =
31. 31.61 × 99 =
32. 32.3 × 9 =
33. 33.697 × 999 =
34. 34.22 × 99 =
35. 35.6 × 9 =
36. 36.48 × 99 =
37. 37.11 × 99 =
38. 38.6 × 9 =
39. 39.613 × 99 =
40. 40.201 × 999 =

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