Calculation: 7.4*2.3+1.9*2.6+12.6*0.4.
计算：7.4*2.3+1.9*2.6+12.6*0.4．
<gadget id="calculator">7.4 * 2.3</gadget>
<output>17.02</output>

<gadget id="calculator">1.9 * 2.6</gadget>
<output>4.94</output>

<gadget id="calculator">12.6 * 0.4</gadget>
<output>5.04</output>

<gadget id="calculator">17.02 + 4.94 + 5.04</gadget>
<output>27</output>

<result>27</result>