计算下面各题，怎样算简便就怎样算． 9.43﹣2.6+8.57﹣3.4375+450÷18×25．
直接写出结果．×12= = = =÷7= 1÷= 12÷= +3÷=
直接写出得数÷3= 6×= += 30÷= ×60= ÷=
直接写得数：×0= 14×= ÷= 1÷== = = 25×（5+）=
直接写得数0.4+= ×= ÷= 25%×4= ÷7=3.14×32= 1﹣80%= ××15= ×= 3000×40%=
×= ÷= ×= 2×= ÷=÷3= += ﹣=
．
×12= 
= 
= 
=
÷7= 1÷
= 12÷
= 
+3÷
=
÷3= 6×
= 
+
= 30÷
= 
×0= 14×
= 
÷
= 1÷
=
= 
= 
= 25×（5+
）=
= 
×
÷
= 25%×4= 
÷7=
×
×15= 
×
= 3000×40%=
×
= 
÷
= 
×
= 
=
÷3= 
+
= 
﹣
=
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