直接写出得数0.8×0.6= 0.125÷= 3.3﹣0.7= +=7.2÷8×4= ×= 0.9+99×0.9= ×÷×=
1--
口算。+=-=+=-+= 0.63×1000= 0. 75-0.25= 0.07+0.03= 0. 9÷0.03= 0.4×0.8=
×=÷3=÷=－= 3÷15=＋0.25= 1÷= 85%－15%= 10÷10%= 5×÷5×=
脱式计算下面各题。 4÷-0.6×÷ （+）÷÷[1÷(-)]
÷＋×
= 3.3﹣0.7= 
+
=
×
= 0.9+99×0.9= 
×
÷
-
+
=
-
=
=
-
+
=
×
=
÷3=
÷
=
－
÷5×
-0.6
×
÷
+
）÷
÷[1÷(
-
)]
÷
＋
×
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