题目内容

计算,能简便的要简便
(1)3-
3
8
-
5
8
(2)
5
9
÷
1
18
+
5
9
÷
1
18
(3)36×(
7
9
+
5
8
)÷
29
5
1)3-
3
8
-
5
8

=3-(
3
8
+
5
8
),
=3-1,
=2;

(2)
5
9
÷
1
18
+
5
9
÷
1
18

=(
5
9
+
5
9
)×18,
=
10
9
×
18,
=20;

(3)36×(
7
9
+
5
8
)÷
29
5

=(36×
7
9
+
36×
5
8
÷
29
5

=(28+22
1
2
÷
29
5

=50
1
2
×
5
29

=
101
2
×
5
29

=
505
58

=8
41
58
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