有两根长188.4厘米的铁丝，分别围成一个正方形和一个圆，哪个面积大？大多少？
直接写出得数．×= 40%+50%= 81÷= 9.9÷0.1=3.52+6.48= 1%÷= ×2÷×2=
直接写出得数：7×= ÷6= ÷= ÷=÷= ×0.15= ÷= 4×60%=
直接写得数．×8= ÷2= ÷= ×=10×= ﹣= += 21×=÷9= ÷=
直接写出得数．①÷7= ②1÷= ③×8= ④×=⑤+= ⑥×= ⑦÷50%= ⑧36÷=
直接写出得数．1﹣9= ×120= 20×= ×=×0= ÷3= 4÷= ÷=×= += += =﹣=
×
= 40%+50%= 81÷
= 9.9÷0.1=
= 
×2÷
= 
÷6= 
÷
= 
÷
÷
= 
×0.15= 
÷
= 4×60%=
×8= 
÷2= 
÷
= 
×
=
= 
﹣
= 
+
= 21×
=
÷9= 
÷
=
÷7= ②1÷
= ③
×8= ④
×
=
+
= ⑥
×
÷50%= ⑧36÷
=
×120= 20×
= 
×
=
×0= 
÷3= 4÷
= 
÷
×
+
= 
+
= 
=
﹣
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