After the elder sister gave the younger sister 2 pieces of erasers, she was 3 more than the younger sister. It turns out that my sister's eraser is much more than my sister's.
姐姐给妹妹2块橡皮后，还比妹妹多3块．原来姐姐的橡皮比妹妹多多少块．
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<result>7</result>