学校长方形操场的周长是360米，长与宽的比是5：4，操场的面积是多少平方米？
直接写得数．÷3= 10÷= ÷= ×=÷= ×= 4×= 1﹣=×60= ×= ×= ××=÷5= 30÷= ÷= ×÷=
直接写出得数．16×= ×= ×= ÷=÷= 9÷= ××=
直接写得数×5= ÷= 10×= ÷=×÷×= 99×+= 3﹣﹣= 1÷4×=（）÷6= ÷÷1=
直接写出得数．×40= = 25×= == = 1﹣50%= ÷== ×=
直接写得数．×= ÷2= ×14= 10×=×2= ×= ÷= ÷=
÷3= 10÷
= 
÷
= 
×
=
÷
= 
×
= 4×
= 1﹣
=
×60= 
×
= 
×
×
×
=
÷5= 30÷
= 
÷
= 
×
÷
=
= 
×
= 
×
= 
÷
=
÷
= 9÷
= 
×
×
=
×5= 
÷
= 10×
= 
÷
=
×
÷
×
+
= 3﹣
﹣
= 1÷4×
=
）÷6= 
÷
÷1=
×40= 
= 25×
= 
=
= 
= 1﹣50%= 
÷
=
= 
×
=
×
= 
÷2= 
×14= 10×
=
×2= 
×
= 
÷
= 
÷
=
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