The temperature in the freezer compartment of the refrigerator is -15°C, and the indoor temperature is 22°C. What is the temperature difference between the two?
冰箱冷冻室的温度是-15℃，室内温度是22℃，两者的温度相差多少？
<gadget id="calculator">22 - (-15)</gadget>
<output>37</output>

<result>37</result>