Dart chart

Example

 
 
+7
 
 
 
 
.5
 
.4
 
 
 
 
+20
 
 

Solution

 
 
+7
 
 
 
8
15
 
.5
 
.4
 
40
60
 
 
 
+20
 
 
home
home

Dart chart
Dart chart

Number of exercises: