What is the difference between the largest two-digit number and the smallest three-digit number that can be divisible by 2, 5, and 3 at the same time?
能同时被2、5、3整除的最大两位数和最小三位数相差多少．
<gadget id="calculator">120 - 90</gadget>
<output>30</output>

<result>30</result>