A tree-lined path is 98 meters long and 198 meters in circumference. How many square floor tiles with an area of 7 square decimeters are needed to pave the floor?
一条林荫小道长98米，周长是198米，用面积是7平方分米的正方形地砖铺地，需要多少块？
<gadget id="calculator">198 / 2</gadget>
<output>99</output>

<gadget id="calculator">99 - 98</gadget>
<output>1</output>

<gadget id="calculator">100 / 7</gadget>
<output>100/7 = around 14.285714</output>

<gadget id="calculator">98 * 1 * (100/7)</gadget>
<output>1_400</output>

<result>1_400</result>