Cards

Example

Use 3 cards to build 3-digit number, which are as close as possible to the entered numbers.

7
4
1
 
 
493
 - 
 
 
249
 - 
 
 
353
 - 
 
 

Solution

Use 3 cards to build 3-digit number, which are as close as possible to the entered numbers.

7
4
1
 
 
493
 - 
471
 
249
 - 
174
 
353
 - 
417
 
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