The school canteen used 69.36 tons of water in April, saving 3.44 tons of water compared with March. How many tons of water was used in March?
学校食堂四月份用水69.36吨，比三月份节约用水3.44吨，三月份用水多少吨？
<gadget id="calculator">69.36 + 3.44</gadget>
<output>72.8</output>

<result>72.8</result>