Tim's cat bit him.  He decided to get himself and the cat checked out.  His doctor's visits $300 and insurance covered 75%.  His cat's visit cost $120 and his pet insurance covered $60.  How much did he pay?
The insurance covers 300*.75=$
<gadget id="calculator">300*.75</gadget>
<output>225</output>
225.
So he had to pay 300-225=$
<gadget id="calculator">300-225</gadget>
<output>75</output>
75.
The cats visit cost 120-60=$
<gadget id="calculator">120-60</gadget>
<output>60</output>
60.
So in total he paid 75+60=$
<gadget id="calculator">75+60</gadget>
<output>135</output>
135.

<result>135</result>