一块长方形的菜地长5米,宽3米,它的面积是多少平方米?周长是多少米?/_9a1^;c1L2L.j
算式:提示1S-_3v5R0]0p:f)Y1V/_9a1^;c1L2L.j
答:它的面积是6~/V0M'B,B*d;c)I+~']8j平方米。/_9a1^;c1L2L.j
算式:提示6b8n6Q9o4@6E-r-V)I.c+q/_9a1^;c1L2L.j
答:周长是.R,k4g;r:q8o4W0x7Y+n+X0X8j米。/_9a1^;c1L2L.j