The canteen originally had 5.25 tons of coal. After 3.92 tons were used up, another 4.6 tons were brought in. How many tons of coal are there in the canteen now?
食堂原有煤5.25吨，用去3.92吨后，又运来4.6吨，食堂现在有煤多少吨？
<gadget id="calculator">5.25 - 3.92</gadget>
<output>1.33</output>

<gadget id="calculator">1.33 + 4.6</gadget>
<output>5.93</output>

<result>5.93</result>