There are two cold storages, A and B. The temperature of A cold storage is -20°C, and the temperature of B cold storage is -15°C. How much is the temperature of B cold storage higher than that of A cold storage?
有甲、乙两冷库，甲冷库的温度是-20℃，乙冷库的温度是-15℃，则乙冷库的温度比甲冷库的温度高多少℃．
<gadget id="calculator">20 - 15</gadget>
<output>5</output>

<result>5</result>