Mom went to the store to buy a pen and spent 27.6 yuan, and there was 31.5 yuan left. How much money did mother bring? how much
妈妈到商店买笔花了27.6元，还剩了31.5元，妈妈带了多少钱？多少元
<gadget id="calculator">27.6 + 31.5</gadget>
<output>59.1</output>

<result>59.1</result>