Mom bought a coat and spent half of the money she brought, and bought a scarf 25 yuan, and there was 220 yuan left in the end. How much money did mother bring when she went out?
妈妈买一件大衣用去所带钱的一半，买一条围巾用去25元，最后还剩220元，妈妈出门时带了多少钱？
<gadget id="calculator">220 + 25</gadget>
<output>245</output>

<gadget id="calculator">245 * 2</gadget>
<output>490</output>

<result>490</result>