在方格纸中画出图形A以L为对称轴的轴对称图形B．将图形B向右平移4格得到图形C．将图形A绕O点顺时针旋转90°得到图形D．
计算下列各题．==．
直接写出得数．== 1﹣ 2.4+===
直接写出得数． 4x+6x= 10﹣﹣= 1﹣=﹣=+=+=﹣= x+3x+7x=+= 1﹣﹣=﹣=+=
计算下面各题，能简便的要简便．++++ 4﹣﹣ 78﹣8.5+22﹣0.5﹣（+）﹣++．
直接写出得数．==========
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