Xiaoqiang goes to his grandmother's house, first by train for 0.2 hours, the speed of the train is 80 kilometers per hour; then by car for 0.5 hours, the speed of the car is 48 kilometers per hour. How many kilometers is Xiaoqiang's house from grandma's house?
小强去外婆家，先乘火车行了0.2小时，火车的速度是每小时80千米；又乘汽车行了0.5小时，汽车的速度是每小时48千米．小强家距离外婆家多少千米？
<gadget id="calculator">80 * 0.2</gadget>
<output>16</output>

<gadget id="calculator">48 * 0.5</gadget>
<output>24</output>

<gadget id="calculator">16 + 24</gadget>
<output>40</output>

<result>40</result>