Calculation: 87*2.5+8.7*75=how much.
计算：87*2.5+8.7*75=多少．
<gadget id="calculator">87 * 2.5</gadget>
<output>217.5</output>

<gadget id="calculator">8.7 * 75</gadget>
<output>652.5</output>

<gadget id="calculator">217.5 + 652.5</gadget>
<output>870</output>

<result>870</result>