近藤次郎
幼苗
共回答了25个问题采纳率:88% 举报
①(
1
12 +
1
8 )×24,
=
1
12 ×24+
1
8 ×24,
=2+3,
=5;
②
3
4 ×99+0.75,
=0.75×99+0.75,
=0.75×(99+1),
=0.75×100,
=75;
③2-
6
13 ÷
9
26 -
2
3 ,
=2-1
1
3 -
2
3 ,
=2-(1
1
3 +
2
3 ),
=2-2,
=0;
④
5
8 ÷[
1
3 +(
5
6 -
3
4 )],
=
5
8 ÷[
1
3 +
1
12 ],
=
5
8 ÷
5
12 ,
=1.5.
1年前
9