一块草地,宽8米 ,长比宽长3米 ,这个草地的周长是多少米?2X:O-w:V0v)N,Z1N'|;D'g(v8k9V5^;}.G
算式:提示9j(U;|0g5@-I8Y.S2a9V3G2X:O-w:V0v)N,Z1N'|;D'g(v8k9V5^;}.G
答:这个草地的周长是6S'[+v3k6p+y4U9R米。2X:O-w:V0v)N,Z1N'|;D'g(v8k9V5^;}.G