请在右图的方格中画一个梯形，并算出它的面积．（每个小方格面积为1平方厘米）
÷= ÷3= ××= ×9×=÷2= 5÷﹣÷5= 7﹣= （1.6+3.2）×0.125= 6×=
直接写出计算结果．×12=÷=1﹣10%=+=4×25%=18÷=
直接写出得数：1﹣5%= += ×= 3÷=6×= ×= += ÷=÷12= ﹣=
+= ﹣= 298+76= 4.8÷0.01=12×（×）= 0.25×12= 3.28×0×72%= 4.62+6.8=3.75﹣2.8= ÷=
= = = == 99×0.25+0.25= = 7.2÷100﹣0.72÷10== =
÷
= 
÷3= 
×
×
= 
×9×
=
÷2= 5÷
﹣
÷5= 7﹣
= （1.6+3.2）×0.125= 
= 
×12=
÷
=
+
=
=
+
= 
×
= 3÷
=
= 
×
= 
+
= 
÷
=
÷12= 
﹣
=
+
= 
﹣
）= 0.25×12= 3.28×0×72%= 4.62+6.8=
= 
= 
= 
=
= 99×0.25+0.25= 
= 7.2÷100﹣0.72÷10=
= 
=
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