题目内容

计算下面各题.(能简算的要简算)
7
16
×
12
35
÷
3
20

[
7
8
-(
5
16
-
1
4
)]÷
26
27

7
4
×
5
6
+
7
4
÷6
5×4×(
1
5
×
3
4

(1)
7
16
×
12
35
÷
3
20

=
3
20
÷
3
20

=1;

(2)[
7
8
-(
5
16
-
1
4
)]÷
26
27

=[
7
8
-
1
16
26
27

=
13
16
÷
26
27

=
27
32


(3)
7
4
×
5
6
+
7
4
÷6,
=
7
4
×
5
6
+
7
4
×
1
6

=
7
4
×(
5
6
+
1
6
),
=
7
4
×1,
=
7
4


(4)5×4×(
1
5
×
3
4
),
=(5×
1
5
)×(4×
3
4
),
=1×3,
=3.
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