4+6+8+10+...+88+90+92.
4+6+8+10+…+88+90+92．
<gadget id="calculator">45 / 2</gadget>
<output>45/2 = around 22.5</output>

<gadget id="calculator">96 * (45/2)</gadget>
<output>2_160</output>

<result>2_160</result>