Xiao Ming bought a pack of bread for 2.4 yuan and a pack of biscuits for 2.8 yuan with 10 yuan. How much should the salesperson give Xiao Ming? ．
小明用10元钱买了一包2.4元的面包和一包2.8元的饼干．售货员应找给小明多少元？．
<gadget id="calculator">2.4 + 2.8</gadget>
<output>5.2</output>

<gadget id="calculator">10 - 5.2</gadget>
<output>4.8</output>

<result>4.8</result>