Mike plays ping pong for 40 minutes.  In the first 20 minutes, he scores 4 points.  In the second 20 minutes, he scores 25% more points.  How many total points did he score?
He scored 4*.25=
<gadget id="calculator">4*.25</gadget>
<output>1</output>
1 point more in the second 20 minutes.
So he scored 4+1=
<gadget id="calculator">4+1</gadget>
<output>5</output>
5 points in the second 20 minutes.
So in total, he scored 4+5=
<gadget id="calculator">4+5</gadget>
<output>9</output>
9 points in the 40 minutes.

<result>9</result>