Calculation: 180.7-(32.4+(56.5+70.2)).
计算：180.7-(32.4+(56.5+70.2))．
<gadget id="calculator">56.5 + 70.2</gadget>
<output>126.7</output>

<gadget id="calculator">32.4 + 126.7</gadget>
<output>159.1</output>

<gadget id="calculator">180.7 - 159.1</gadget>
<output>21.6</output>

<result>21.6</result>