口算：
24÷8= 40÷5= 500+300= 450+500= 360﹣80=
50+800= 9×6= 72÷8= 28÷7= 5×9=
360﹣30= 730﹣700= 18÷3= 3400﹣300=
相关试题
口算：
24÷8= 40÷5= 500+300= 450+500= 360﹣80=
50+800= 9×6= 72÷8= 28÷7= 5×9=
360﹣30= 730﹣700= 18÷3= 3400﹣300=
﹣
﹣
+2.875÷4．
= 15.2﹣0.9=
= 12÷35=
=
=
=
=
+
=
×2÷
=
=
=
=
．
粤公网安备 44130202000953号