口算下面各题．
210÷3= 12×6= 4÷2= 170×3= 150﹣70=
270÷9= 600÷3= 70÷3= 844÷2= 50×16=
400÷5= 20×50= 60×40= 450÷5= 110×8=
51÷3= 1100﹣30= 80+90= 21×9×0= 320÷2÷4=
相关试题
口算下面各题．
210÷3= 12×6= 4÷2= 170×3= 150﹣70=
270÷9= 600÷3= 70÷3= 844÷2= 50×16=
400÷5= 20×50= 60×40= 450÷5= 110×8=
51÷3= 1100﹣30= 80+90= 21×9×0= 320÷2÷4=
×
= 
÷2= 12×
= 3÷
= 
﹣
×
=
÷
= 
×14= 1﹣
×
= 6×
= 
÷
=
×3= 0÷
= 0.5+
= 
×
=
= 
÷
= 2﹣
﹣
= 16.5+4.7=
÷3÷
=
×
= 15÷1%= 0.52= 3.14×6=
÷
= 0.375×
= 
×3÷
21÷
÷
24÷
．
= 9÷
= 
﹣
= 
+
=
×75%= 1÷
×
）÷2= 1﹣（
+
）=
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