13*6.8+3.2*13=how much.
13*6.8+3.2*13=多少．
<gadget id="calculator">13 * 6.8</gadget>
<output>88.4</output>

<gadget id="calculator">3.2 * 13</gadget>
<output>41.6</output>

<gadget id="calculator">88.4 + 41.6</gadget>
<output>130</output>

<result>130</result>