How many five-digit numbers divisible by 5 can be formed from the numbers 0, 1, 2, 3, 4, 5, and 6 with different digits.
由数字0，1，2，3，4，5，6可以组成多少个各位数字互不相同的能被5整除的五位数．
<gadget id="calculator">6 * 5 * 4 * 3</gadget>
<output>360</output>

<gadget id="calculator">5 * 5 * 4 * 3</gadget>
<output>300</output>

<gadget id="calculator">360 + 300</gadget>
<output>660</output>

<result>660</result>