5÷ 1 1000 =5000(厘米)=50米3÷ 1 1000 =3000(厘米)=30(米)周长:(50+30)×2=80×2=160(米)面积:50×30=1500(平方米)答:操场的实际周长是160米,实际面积是1500平方米;故答案为;160,1500.