If a floor is paved with square tiles with a side length of 5 cm, 216 pieces are needed. If a square tile with a side length of 6 cm is used for paving, how many tiles are needed?
一块地板，若选用边长是5厘米的正方形瓷砖去铺，则需要216块，若选用边长是6厘米的正方形瓷砖来铺，则需要多少．
<gadget id="calculator">5 * 5 * 216</gadget>
<output>5_400</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<gadget id="calculator">5_400 / 36</gadget>
<output>150</output>

<result>150</result>