1.375+2.375． +3.375+...+99.375+100.375=how much.
1.375+2.375．+3.375+…+99.375+100.375=多少．
<gadget id="calculator">1 + 100</gadget>
<output>101</output>

<gadget id="calculator">101 * 50</gadget>
<output>5_050</output>

<gadget id="calculator">5_050 + 37.5</gadget>
<output>5_087.5</output>

<result>5_087.5</result>