8.1*1.3-8*1.3+1.9*1.3+11.9/1.36.
8.1*1.3-8*1.3+1.9*1.3+11.9/1.36．
<gadget id="calculator">8.1 * 1.3</gadget>
<output>10.53</output>

<gadget id="calculator">8 * 1.3</gadget>
<output>10.4</output>

<gadget id="calculator">10.53 - 10.4</gadget>
<output>0.13</output>

<gadget id="calculator">1.9 * 1.3</gadget>
<output>2.47</output>

<gadget id="calculator">11.9 / 1.36</gadget>
<output>8.75</output>

<gadget id="calculator">0.13 + 2.47 + 8.75</gadget>
<output>11.35</output>

<result>11.35</result>