用竖式计算，带*的题要写出验算过程．90÷5= 83÷4= *85÷3= 475×4= 9×604= 450×6=
直接写得数. 7.2÷9=﹣=+=﹣+= 5﹣=﹣×0=
= ．
直接写得数．========
﹣．
+=+=﹣=+=++=+﹣=﹣﹣=﹣+=
﹣
=
+
=
﹣
+
= 5﹣
=
﹣
= ．
=
=
=
=
=
=
=
=
﹣
．
+
=
+
=
﹣
=
+
=
+
+
=
+
﹣
﹣
﹣
=
﹣
+
=
粤公网安备 44130202000953号