题目内容

计算.
1
2
×
2
3
×
3
4
×
4
5

1
10
+
1
6
)×10×6
1
2
-
3
8
)÷(4÷
8
15

5
11
×[(
2
5
+
1
3
)÷
5
6
].
(1)
1
2
×
2
3
×
3
4
×
4
5

=
1
3
×
3
4
×
4
5

=
1
4
×
4
5

=
1
5


(2)(
1
10
+
1
6
)×10×6,
=
8
30
×10×6,
=
8
3
×6,
=16;

(3)(
1
2
-
3
8
)÷(4÷
8
15
),
=
1
8
÷
15
2

=
1
60


(4)
5
11
×[(
2
5
+
1
3
)÷
5
6
],
=
5
11
×[
11
15
÷
5
6
],
=
5
11
×
22
25

=
2
5
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