题文
口算下面各题．
﹣
= 
+
= 
﹣
= 2÷
= 
×6= 
÷
=
×6= 
×
= 
﹣= 
÷
= 
÷
= 
×
=
×
= 
÷
= 
÷
= 6.4÷0.08= 4﹣2.92= 
÷
=
口算下面各题．﹣= += ﹣= 2÷= ×6= ÷=×6= ×= ﹣= ÷= ÷= ×=×= ÷= ÷= 6.4÷0.08= 4﹣2.92= ÷=
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