7.2*1.69+3.14*2.8+1.45*7.2=how much.
7.2*1.69+3.14*2.8+1.45*7.2=多少．
<gadget id="calculator">7.2 * 1.69</gadget>
<output>12.168</output>

<gadget id="calculator">3.14 * 2.8</gadget>
<output>8.792</output>

<gadget id="calculator">1.45 * 7.2</gadget>
<output>10.44</output>

<gadget id="calculator">12.168 + 8.792 + 10.44</gadget>
<output>31.4</output>

<result>31.4</result>