It is known that rice is 2.2 yuan per catty, and Xiao Ming bought 1.2 catties of rice, how much did Xiao Ming spend
已知大米每斤2.2元，小明买了1.2斤大米，那么小明用去多少元
<gadget id="calculator">2.2 * 1.2</gadget>
<output>2.64</output>

<result>2.64</result>