Subtract 8 consecutively from 63, how many times do you need to subtract 15.
从63中连续减去8，减多少次才能使结果等于15．
<gadget id="calculator">63 - 15</gadget>
<output>48</output>

<gadget id="calculator">48 / 8</gadget>
<output>6</output>

<result>6</result>