A toothbrush is 4.75 yuan, and a box of toothpaste is 4.8 yuan. Xiaoqing bought a toothbrush and a box of toothpaste and paid the salesperson 10 yuan. How much should I get back?
一把牙刷4.75元，一盒牙膏4.8元，小青买了一把牙刷和一盒牙膏，付给营业员10元，应找回多少元？
<gadget id="calculator">4.75 + 4.8</gadget>
<output>9.55</output>

<gadget id="calculator">10 - 9.55</gadget>
<output>0.45</output>

<result>0.45</result>