下面各题，能用简便方法计算的用简便方法计算：
2.5×12.5×32 6.4÷2.5÷0.4 5.4×0.36+0.64×5.4
9÷0.75+9÷0.25 17.2﹣0.71﹣0.29 8.6+1.4÷2.5．
相关试题
下面各题，能用简便方法计算的用简便方法计算：
2.5×12.5×32 6.4÷2.5÷0.4 5.4×0.36+0.64×5.4
9÷0.75+9÷0.25 17.2﹣0.71﹣0.29 8.6+1.4÷2.5．
×8=
÷2=
×
=
÷
=
÷
×
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÷10=
+
=
= 16×
= 1﹣7%=
=
÷2= 4×20%=
×4=
+
）×12= 1÷75%= 1%÷10%= 42%﹣0.42=
= 6÷
=
÷
= 1÷
×
=
×18=
×0×
=
×
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×26=
×60= 12÷
= 3.14×42=（
）2=
×
=
+
=
÷
÷
=
×4=
+
=
+
=
÷
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=
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=
×
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