There are about 1.3 billion people in our country. If each person donates 1 dime to the "Wenchuan Earthquake" disaster area, how much can we donate in total?
我国约有13亿人口，如果每人都为"汶川地震"灾区捐出1角钱，那么一共能捐多少元．
<gadget id="calculator">13 * 0.1</gadget>
<output>1.3</output>

<result>1.3</result>