2.87*263+73.7*28.7．
2.87*263+73.7*28.7．
<gadget id="calculator">2.87 * 263</gadget>
<output>754.81</output>

<gadget id="calculator">73.7 * 28.7</gadget>
<output>2_115.19</output>

<gadget id="calculator">754.81 + 2_115.19</gadget>
<output>2_870</output>

<result>2_870</result>