为了那一刻
幼苗
共回答了16个问题采纳率:93.8% 举报
①
5
8 +(
22
27 -
5
8 ),
=
5
8 -
5
8 +
22
27 ,
=
22
27 ;
②
8
9 -
1
6 +
2
3 ,
=
8
9 +
2
3 -
1
6 ,
=
4
3 -
1
6 ,
=
7
6 ;
③
6
7 +
1
6 -(
3
8 -
1
7 ),
=
6
7 +
1
6 -
3
8 +
1
7 ,
=(
6
7 +
1
7 ) +
1
6 -
3
8 ,
=1 +
1
6 -
3
8 ,
=
19
24 ;
④1-
1
14 -
2
7 ,
=1-(
1
14 +
2
7 ),
=1-
5
14 ,
=
9
14 ;
⑤(
1
4 +
2
5 )×20,
=
1
4 ×20 +
2
5 ×20,
=5+8,
=13;
⑥25÷2
1
2 ÷12,
=25×
2
5 ×
1
12 ,
=
5
6 .
1年前
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