笔算．（带*的要验算）*468+329 406﹣29 351+287 *900﹣378 65÷7 52÷6．
直接写出得数．===== 1﹣=
．
25×8= 8.5﹣3.7= 0.56÷0.07= 4×9.2×0.25======
直接写出结果． 12÷0.4= 9.9×50= 2+0.75=+= 3+= 0.5×40= 2﹣=﹣=
=
=
=
=
= 1﹣
=
．
=
=
=
=
=
+0.75=
=
= 0.5×40= 2﹣
=
﹣
=
粤公网安备 44130202000953号