During summer break 37 kids from Lawrence county go to camp and the other 4 kids stay home. An additional 29 kids from outside the county attended the camp. About how many kids are in Lawrence county?
37 kids from Lawrence county go to camp 
+ 29 kids from outside the county attended the camp 
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66 kids attended the camp

4 kids stay home 
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There are a total of 70 kids in Lawrence county