Calculation: 7.816*1.45+3.14*2.184+1.69*7.816=how much.
计算：7.816*1.45+3.14*2.184+1.69*7.816=多少．
<gadget id="calculator">7.816 * 1.45</gadget>
<output>11.3332</output>

<gadget id="calculator">3.14 * 2.184</gadget>
<output>6.85776</output>

<gadget id="calculator">1.69 * 7.816</gadget>
<output>13.20904</output>

<gadget id="calculator">11.3332 + 6.85776 + 13.20904</gadget>
<output>31.4</output>

<result>31.4</result>