用你喜欢的方法计算
25.74﹣3.57﹣6.43 12.5×3.4×8 14.5﹣4.68﹣5.32
（20﹣1.4÷2）×0.4 3.5÷〔（0.45﹣0.38）×0.01〕
用你喜欢的方法计算
25.74﹣3.57﹣6.43 12.5×3.4×8 14.5﹣4.68﹣5.32
（20﹣1.4÷2）×0.4 3.5÷〔（0.45﹣0.38）×0.01〕
=
×
=
÷
÷0.5= 2﹣
=（1﹣
）÷
=
=
=
=
×26= 12÷
=
×
=
÷
=
=
=
=
=
%=
=
=
=
=
=
﹣
= 1.25×8= 2.7×
=
÷2=
×
= 1﹣
÷1﹣
×
﹣
= 6﹣
×
÷
= 0.22= 1÷
=
÷60%=
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