How many numbers are multiples of 5 in the four-digit number composed of the four numbers 0, 1, 4, and 5?
用0，1，4，5四个数组成的四位数中，是5的倍数的数有多少个．
<gadget id="calculator">6 + 4</gadget>
<output>10</output>

<result>10</result>