Lianhua Supermarket originally had 50.67 tons of rice, but after selling 32.7 tons, it shipped another 13.37 tons. How many tons of rice does the supermarket have now?
联华超市原来有大米50.67吨，卖出32.7吨后，又运进13.37吨．超市现在有大米多少吨？
<gadget id="calculator">50.67 - 32.7</gadget>
<output>17.97</output>

<gadget id="calculator">17.97 + 13.37</gadget>
<output>31.34</output>

<result>31.34</result>