The new semester has started. Naughty went to the store to buy a soft cover for 4.5 yuan and a stationery box for 8.2 yuan. How much did Naughty spend in total?
新学期开学了，淘气到商店买了1个软皮抄4.5元，买了1个文具盒8.2元，淘气一共花了多少元？
<gadget id="calculator">4.5 + 8.2</gadget>
<output>12.7</output>

<result>12.7</result>