The price of a schoolbag is 35 yuan, and the price of a schoolbag is 27.5 yuan more than that of a pencil case. How much does it cost to buy a schoolbag and a pencil case?
一个书包的价钱是35元，书包的价钱比文具盒贵27.5元，买一个书包和一个文具盒要多少元？
<gadget id="calculator">35 - 27.5</gadget>
<output>7.5</output>

<gadget id="calculator">7.5 + 35</gadget>
<output>42.5</output>

<result>42.5</result>