题目内容

计算下面各题
24×(
3
8
+
3
4
)
(
4
5
-
1
2
×
4
5
2
3
(
2
51
+
5
18
)×9×17
3
16
÷
9
10
×
4
5
3-1÷(
5
7
+
6
7
×
1
3
)
1.75×
6
7
+
3
14
×
7
4
+
7
4

①24×(
3
8
+
3
4
),
=24×
3
8
+24×
3
4

=9+18,
=27;

②(
4
5
-
1
2
×
4
5
)÷
2
3

=(
4
5
-
2
5
)÷
2
3

=
2
5
×
3
2

=
3
5



③(
2
51
+
5
18
)×9×17,
=
2
51
×9×17+
5
18
×9×17,
=6+
85
2

=
97
2


3
16
÷
9
10
×
4
5

=
3
16
×
10
9
×
4
5

=
1
6


⑤3-1÷(
5
7
+
6
7
×
1
3
),
=3-1÷1,
=2;

⑥1.75×
6
7
+
3
14
×
7
4
+
7
4

=
7
4
×
6
7
+
3
14
×
7
4
+
7
4

=
7
4
×(
6
7
+
3
14
+1),
=
7
4
×
29
14

=
29
8
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