Xiao Hua has 53 yuan, Xiao Ming has 35 yuan, how much money Xiao Hua wants to give Xiao Ming, the money of the two is equal.
小华有53元，小明有35元，小华要给小明多少元，两人的钱才相等．
<gadget id="calculator">53 + 35</gadget>
<output>88</output>

<gadget id="calculator">88 / 2</gadget>
<output>44</output>

<gadget id="calculator">53 - 44</gadget>
<output>9</output>

<result>9</result>