3.42*1.5-(0.8+0.5)
3.42*1.5-(0.8+0.5)
<gadget id="calculator">3.42 * 1.5</gadget>
<output>5.13</output>

<gadget id="calculator">0.8 + 0.5</gadget>
<output>1.3</output>

<gadget id="calculator">5.13 - 1.3</gadget>
<output>3.83</output>

<result>3.83</result>