The living room of Xingwang’s house is 4 meters wide, and the length is 3 meters longer than the width. How many square tiles with a side length of 2 decimeters are needed to pave the floor?
兴旺家的客厅宽4米，长比宽多3米．用边长2分米的正方形瓷砖铺地面，需要多少块？
<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">100 / 4</gadget>
<output>25</output>

<gadget id="calculator">7 * 4 * 25</gadget>
<output>700</output>

<result>700</result>