Teacher Zhao bought 5 pens of the same type for 35 yuan. She also wants to buy 10 pens like this. How much money does she need to prepare?
赵老师买5枝同样的钢笔用了35元，她还想买10枝这样的钢笔，需要准备多少元钱？
<gadget id="calculator">35 / 5</gadget>
<output>7</output>

<gadget id="calculator">7 * 10</gadget>
<output>70</output>

<result>70</result>