There are 89.7 tons of coal in a pile, 23.7 tons are removed on the first day, and 24.5 tons are removed on the second day, how many tons are left?
一堆煤有89.7吨，第一天运走23.7吨，第二天运走24.5吨，还剩多少吨？
<gadget id="calculator">89.7 - 23.7 - 24.5</gadget>
<output>41.5</output>

<result>41.5</result>