A club wants to buy 40 sets of sportswear at 300 yuan each. Shopping mall A offers a 25% discount, and shopping mall B buys 4 sets and gets a free set. Which shopping mall is the cheapest? How much is it cheaper than the other one?
某俱乐部要购买40套运动服，每套300元．甲商场打七五折，乙商场买4套赠一套，在哪个商场买便宜？比另一个便宜多少元？
<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">40 / 5</gadget>
<output>8</output>

<gadget id="calculator">40 - 8</gadget>
<output>32</output>

<gadget id="calculator">32 * 300</gadget>
<output>9_600</output>

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">300 * 40 * (3/4)</gadget>
<output>9_000</output>

<gadget id="calculator">9_600 - 9_000</gadget>
<output>600</output>

<result>600</result>