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案例描述:教学北师大版三年级下册第85页第6题:在一个长方形的花坛四周,铺上宽1米的小路。(1)花坛的面积是多少平方米?(2)小路的面积是多少平方米?
Case Description: Teaching Beijing Normal University version of the third grade volume on the next page 85th sixth: around a rectangular flower bed, covered with a 1-meter wide path. (1) What is the area of the flower bed? (2) How many square meters is the area of the road?