和
是两个正方形，
和
相交于
，已知
等于
的面积等于6平方厘米，求五边形
的面积．
相关试题
= ②
= ③
= ④1﹣
= ⑤
=
= ⑦
= ⑧1﹣
= ⑨6﹣（
）= ⑩
=
．
﹣
= 1﹣
= 
+
= 
﹣
= 
+
= 
+7=
= 
﹣0.9= 
﹣
= 
+
= 
﹣1= 
+
+
=口算下面各题．
+
= 
﹣
= 
+
= 
﹣
= 6.4+2.3= 7.3﹣0.4=
1.1+2.8= 707÷7= 360÷3= 93÷3= 40×25= 720÷4=
80﹣25= 36×0=
口算下面各题．+= ﹣= += ﹣= 6.4+2.3= 7.3﹣0.4=
1.1+2.8= 707÷7= 360÷3= 93÷3= 40×25= 720÷4=
80﹣25= 36×0=
= 12﹣12×0.1= 
﹣
= 0.3+
= 1.66÷2=
+
= 7﹣
= 23+52= 
﹣0.75= 50×25×1.2=
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