题目内容

计算,能简算的要简算.
3
8
×4÷
3
8
×4
(36+
1
4
)×
1
4
4
15
÷5÷
4
5
1-
2
13
÷
8
13
-
3
4
(1)
3
8
×4÷
3
8
×4,
=
3
8
×4×
8
3
×4,
=(
3
8
×
8
3
)×(4×4),
=1×16,
=16;

(2)(36+
1
4
)×
1
4

=36×
1
4
+
1
4
×
1
4

=9+
1
16

=9
1
16


(3)
4
15
÷5÷
4
5

=
4
15
×
1
5
×
5
4

=
4
15
×(
1
5
×
5
4
),
=
4
15
×
1
4

=
1
15


(4)1-
2
13
÷
8
13
-
3
4

=1-
1
4
-
3
4

=1-(
1
4
+
3
4
),
=1-1,
=0.
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