(13*0.58-4.87+0.42*13-5.13)*4.25.
(13*0.58-4.87+0.42*13-5.13)*4.25．
<gadget id="calculator">13 * 0.58</gadget>
<output>7.54</output>

<gadget id="calculator">7.54 - 4.87</gadget>
<output>2.67</output>

<gadget id="calculator">0.42 * 13</gadget>
<output>5.46</output>

<gadget id="calculator">5.46 - 5.13</gadget>
<output>0.33</output>

<gadget id="calculator">2.67 + 0.33</gadget>
<output>3</output>

<gadget id="calculator">3 * 4.25</gadget>
<output>12.75</output>

<result>12.75</result>