There are 80 gray cranes by the lake, four times the number of white cranes. How many white cranes and gray cranes are there in total?
湖边有灰鹤80只，是白鹤只数的4倍，白鹤、灰鹤共有多少只？
<gadget id="calculator">80 / 4</gadget>
<output>20</output>

<gadget id="calculator">20 + 80</gadget>
<output>100</output>

<result>100</result>