12*(7.274-6.3+11.726-3.7)=
12*(7.274-6.3+11.726-3.7)=
<gadget id="calculator">7.274 - 6.3</gadget>
<output>0.974</output>

<gadget id="calculator">11.726 - 3.7</gadget>
<output>8.026</output>

<gadget id="calculator">0.974 + 8.026</gadget>
<output>9</output>

<gadget id="calculator">12 * 9</gadget>
<output>108</output>

<result>108</result>