Mom bought 42.56 yuan of rice and handed it to the salesperson for 100 yuan. How much should I get back? (solution by equation method)
妈妈买了42.56元的大米，交给售货员100元，应该找回多少元？(用方程法解答)
<gadget id="calculator">100 - 42.56</gadget>
<output>57.44</output>

<result>57.44</result>