The price of a kind of floral cloth is 9.4 yuan per meter. My mother bought 2.5 meters of floral cloth and paid 50 yuan. How much should I get back?
一种花布的价格是每米9.4元，妈妈买了2.5米花布，付出50元，应找回多少钱？
<gadget id="calculator">9.4 * 2.5</gadget>
<output>23.5</output>

<gadget id="calculator">50 - 23.5</gadget>
<output>26.5</output>

<result>26.5</result>