The unit price of a basketball is 125 yuan/piece, and Teacher Wang brought 2,300 yuan to buy 16 basketballs. How much should I get back?
篮球的单价是125元/个，王老师带了2300元钱准备购买16个篮球．应该找回多少钱？
<gadget id="calculator">125 * 16</gadget>
<output>2_000</output>

<gadget id="calculator">2_300 - 2_000</gadget>
<output>300</output>

<result>300</result>