Dart chart

Example

 
 
+3
 
 
 
 
.4
 
.5
 
 
 
 
+19
 
 

Solution

 
 
+3
 
 
 
4
7
 
.4
 
.5
 
16
35
 
 
 
+19
 
 
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Dart chart
Dart chart

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