Xiaohong has 48 flowers, Xiaohua has 28 flowers, how many flowers Xiaohong gives to Xiaohua, they both have the same number of flowers.
小红有48朵花，小华有28朵花，小红给小华多少朵花，两人的花一样多．
<gadget id="calculator">48 - 28</gadget>
<output>20</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<result>10</result>