Simple calculation: (1,28.4*99+28.4,2,0.94*2.5-0.45.
简便计算：(1,28.4*99+28.4,2,0.94*2.5-0.45．
<gadget id="calculator">0.94 * 2.5</gadget>
<output>2.35</output>

<gadget id="calculator">2.35 - 0.45</gadget>
<output>1.9</output>

<result>1.9</result>