题目内容

脱式计算
798+10570÷35
1.8-1÷(0.75+
1
3
)×1
5
8

9
4
5
÷(7
2
5
×0.6-
3
5
÷
5
32
(1)798+10570÷35,
=798+302,
=1100;

(2)1.8-1÷(0.75+
1
3
)×1
5
8

=1.8-1÷
13
12
×1
5
8

=1.8-
12
13
×
13
8

=1.8-1.5,
=0.3;

(3)9
4
5
÷(7
2
5
×0.6-
3
5
÷
5
32
),
=9
4
5
÷(
111
25
-
96
25
),
=
49
5
÷
3
5

=
49
3
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