On the "Six Days" festival, my mother took Xiaoli to go shopping together. It cost 359.00 yuan to buy a baby carriage, 20.50 yuan to buy a stationery box, and 0.95 yuan to buy a bottle of purified water. They brought a total of 400 yuan, how much do you think the cashier should give them?
"六一"节，妈妈带小丽一起去购物，买一台儿童车用去359.00元，一个文具盒用去20.50元，一瓶纯净水用去0.95元．她们一共带400元，你说收银员应找给她们多少钱？
<gadget id="calculator">359 + 20.5 + 0.95</gadget>
<output>380.45</output>

<gadget id="calculator">400 - 380.45</gadget>
<output>19.55</output>

<result>19.55</result>