题目内容

计算下面各题,能简算的要简算.
30×(
2
5
+
1
6

98×
4
7
+98×
3
7

1
3
-
1
4
)÷
1
2
+
5
6
1
2
+
1
3
+
1
4
)×24
4
9
×
1
6
+
5
9
÷6
13
12
-(
1
12
+
1
5
(1)30×(
2
5
+
1
6
),
=30×
2
5
+30×
1
6

=12+5,
=17;

(2)98×
4
7
+98×
3
7

=98×(
4
7
+
3
7
),
=98×1,
=98;

(3)(
1
3
-
1
4
)÷
1
2
+
5
6

=
1
12
÷
1
2
+
5
6

=
1
6
+
5
6

=1;

(4)(
1
2
+
1
3
+
1
4
)×24,
=
1
2
×24+
1
3
×24+
1
4
×24,
=12+8+6,
=26;

(5)
4
9
×
1
6
+
5
9
÷6,
=
4
9
×
1
6
+
5
9
×
1
6

=
1
6
×(
5
9
+
4
9
),
=
1
6
×1,
=
1
6


(6)
13
12
-(
1
12
+
1
5
),
=
13
12
-
1
12
-
1
5

=1-
1
5

=
4
5
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