There are two colored ribbons each 2 meters long. The first ribbon is 50cm long, and the second ribbon is 75cm long. Which ribbon is the longest left? How many centimeters are left in the two ribbons?
有两条彩带各长2米，第一条用去50厘米，第二条用去75厘米，哪条彩带剩的长？两条彩带一共剩下多少厘米？
<gadget id="calculator">2 * 100</gadget>
<output>200</output>

<gadget id="calculator">200 - 50</gadget>
<output>150</output>

<gadget id="calculator">200 - 75</gadget>
<output>125</output>

<gadget id="calculator">150 + 125</gadget>
<output>275</output>

<result>275</result>