Calculation: 37.8-18.4+2.36.
计算：37.8-18.4+2.36．
<gadget id="calculator">37.8 - 18.4</gadget>
<output>19.4</output>

<gadget id="calculator">19.4 + 2.36</gadget>
<output>21.76</output>

<result>21.76</result>