Mom bought cabbage for 2.85 yuan, which is 0.7 yuan more than buying radish. Mom paid 10 yuan, how much should I get back?
妈妈买白菜用去2.85元，比买萝卜多用去0.7元，妈妈付10元钱，应找回多少元？
<gadget id="calculator">2.85 - 0.7</gadget>
<output>2.15</output>

<gadget id="calculator">2.85 + 2.15</gadget>
<output>5</output>

<gadget id="calculator">10 - 5</gadget>
<output>5</output>

<result>5</result>