There are 14 tons of cement on the construction site. The first day used 2.5 tons, and the second day used 0.75 tons less than the first day. How many tons of cement are left after two days?
工地有14吨水泥．第一天用了2.5吨，第二天用的比第一天少0.75吨．两天后还剩水泥多少吨．
<gadget id="calculator">2.5 - 0.75</gadget>
<output>1.75</output>

<gadget id="calculator">14 - 2.5 - 1.75</gadget>
<output>9.75</output>

<result>9.75</result>