pencil costs 0.70 yuan, which is 5.60 yuan cheaper than a pen. How much does it cost to buy a pen?
一枝铅笔0.70元，比一根钢笔便宜5.60元．买一枝钢笔要付多少元？
<gadget id="calculator">0.7 + 5.6</gadget>
<output>6.3</output>

<result>6.3</result>