lib/mathy/difficulties/grade_two.rb in mathy-0.0.1 vs lib/mathy/difficulties/grade_two.rb in mathy-0.0.2

@@ -2,8 +2,16 @@
   module Difficulties
     class GradeTwo
       def next_operands
         [rand(20), rand(20)].sort.reverse
       end
+
+      def choose_operation(console)
+        verifier = Verification.new(console)
+        console.operation?([
+          Operations::Operation.new(self, "+", verifier),
+          Operations::Operation.new(self, "-", verifier)
+        ])
+      end
     end
   end
 end