Mom spends 1.50 yuan to buy radishes, 0.50 yuan more to buy cabbage than radish, and 2.30 yuan more to buy eggs than cabbage. How much does mother spend on eggs?
妈妈买萝卜用去1.50元，买白菜比买萝卜多用0.50元，买鸡蛋比买白菜多用2.30元，请问妈妈买鸡蛋用了多少元？
<gadget id="calculator">1.5 + 0.5</gadget>
<output>2</output>

<gadget id="calculator">2 + 2.3</gadget>
<output>4.3</output>

<result>4.3</result>