There are 72 basketballs in the school, 28 more table tennis than basketballs, 32 fewer footballs than the total of basketballs and table tennis, how many footballs are there?
学校有72个篮球，乒乓球比篮球多28个，足球比篮球和乒乓球的总数少32个，足球有多少个？
<gadget id="calculator">72 - 32</gadget>
<output>40</output>

<gadget id="calculator">72 + 28 + 40</gadget>
<output>140</output>

<result>140</result>