Li Hong has 48 stamps, Xiao Li has 20 fewer stamps than Li Hong's 4 times, how many stamps Li Hong has less than Xiao Li.
李红有48张邮票，小丽的邮票张数比李红的4倍少20张，李红比小丽少多少张邮票．
<gadget id="calculator">48 * 4</gadget>
<output>192</output>

<gadget id="calculator">192 - 20 - 48</gadget>
<output>124</output>

<result>124</result>