A Chinese book is 14.6 yuan a piece, and a math book is 6.15 yuan a piece. Our study group needs to buy 10 books each. How much does it cost in total? (calculated by two methods)
语文书14.6元一本，数学书6.15元一本，我们学习小组需要各买10本，一共需要多少钱？(两种方法计算)
<gadget id="calculator">14.6 * 10</gadget>
<output>146</output>

<gadget id="calculator">6.15 * 10</gadget>
<output>61.5</output>

<gadget id="calculator">146 + 61.5</gadget>
<output>207.5</output>

<result>207.5</result>