题目内容

用你喜欢的方法计算:
1
2
-
3
8
)÷
3
4
2-
8
15
×
1
4
6
11
×(
5
9
+
2
3
4
5
-
2
3
)×
15
2
1
2
+
4
5
)×20
101×
2
7
-
2
7
(1)(
1
2
-
3
8
)÷
3
4

=(
4
8
-
3
8
)÷
3
4

=
1
8
×
4
3

=
1
6


(2)2-
8
15
×
1
4

=2-
2
15

=1
13
15


(3)
6
11
×(
5
9
+
2
3
),
=
6
11
×(
5
9
+
6
9
),
=
6
11
×
11
9

=
2
3


(4)(
4
5
-
2
3
)×
15
2

=
4
5
×
15
2
-
2
3
×
15
2

=6-5,
=1;

(5)(
1
2
+
4
5
)×20,
=
1
2
×20+
4
5
×20,
=10+16,
=26;

(6)101×
2
7
-
2
7

=(101-1)×
2
7

=100×
2
7

=28
4
7
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