题目内容

【题目】计算下面各题,能简算的就简算.

1﹣ ÷ ﹣ =

3+ × ÷ =

÷( ﹣ )× =

× + ÷ =

78×150%﹣78× =

×[1÷( + )]=

【答案】0;3 ;;;78;
【解析】解:①1﹣ ÷ ﹣ ,
=1﹣ ,
=1﹣( ),
=1﹣1,
=0;
②3+ × ÷ ,
=3+ × ,
=3+ ,
=3 ;
③ ÷( ﹣ )×
= ÷ × ,
= × × ,
= ;
④ × + ÷ ,
=( )× ,
=1× ,
= ;
⑤78×150%﹣78×
=78×(150%﹣ ),
=78×1,
=78;
⑥ ×[1÷( + )]
= ×(1× ),
= × ,
= .

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