竖式计算（带*号题要验算）．608×7= *368+539= *400﹣157=
= 1﹣=======
直接写出得数．============
======
直接写出得数．== 1﹣= 4﹣=====
计算下面各题．．
= 1﹣
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
= 1﹣
=
=
=
=
=
=
．
粤公网安备 44130202000953号