Xiaohong has 180 stamps, 25 more than Xiaoming. How many stamps do they have altogether?
小红有180枚邮票，比小明多25枚．他俩一共有邮票多少枚？
<gadget id="calculator">180 - 25</gadget>
<output>155</output>

<gadget id="calculator">180 + 155</gadget>
<output>335</output>

<result>335</result>