题目内容

计算,能简算的要简算.
5
8
×
3
4
+
1
4
×
5
8

5
12
+
7
16
)×48
3-
7
12
-
5
12

3
4
×
2
5
+
3
4
×0.6.
(1)
5
8
×
3
4
+
1
4
×
5
8

=
5
8
×(
3
4
+
1
4
),
=
5
8
×
1,
=
5
8


(2)(
5
12
+
7
16
)×48,
=48×
5
12
+48×
7
16

=20+21,
=41;
(3)3-
7
12
-
5
12

=3-(
7
12
+
5
12
),
=3-1,
=2;
(4)
3
4
×
2
5
+
3
4
×
0.6,
=
3
4
×
2
5
+
3
5
),
=
3
4
×
1,
=
3
4
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