The elder sister and the younger brother have 230 yuan. If the elder sister takes away 10 yuan, the two have the same amount of money. How much does the older sister have?
姐姐弟弟有230元，如果姐姐拿走10元，两个人钱一样多，原来姐姐有多少元？
<gadget id="calculator">230 - 10</gadget>
<output>220</output>

<gadget id="calculator">220 / 2</gadget>
<output>110</output>

<gadget id="calculator">110 + 10</gadget>
<output>120</output>

<result>120</result>