A steamed bun is 0.5 yuan, a bowl of soy milk is 0.7 yuan, Xiaolan bought a steamed bun and a bowl of soy milk, how much should she pay?
一个馒头0.5元，一碗豆浆0.7元，小兰买了一个馒头和一碗豆浆，她应付多少钱？
<gadget id="calculator">0.5 + 0.7</gadget>
<output>1.2</output>

<result>1.2</result>