The Counting Numbers 1-19

No explanation necessary -- here they are; memorize them!

1   11  
2   12  
3   13  
4   14  
5   15  
6   16  
7   17  
8   18  
9   19  
10    

Note that all the numbers 13-19 are formed by preceding the last digit by . Eleven and twelve (in red in the table above) are the only exceptions.

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