The school cafeteria burned 9.36 tons of coal in March, saving 1.47 tons compared with February. How many tons were burned in February and March?
学校食堂三月份烧煤9.36吨，比二月份节约1.47吨，二三月共烧多少吨？
<gadget id="calculator">9.36 + 1.47 + 9.36</gadget>
<output>20.19</output>

<result>20.19</result>