题目内容

脱式计算.(能简算的要简算)
3
16
+
1
24
)×8+
2
3
4.5-(
3
7
+1.5)-
4
7
2
3
+
6
7
×
7
24
)÷
11
32
9
20
÷[
1
2
×(
2
5
+
4
5
)].

(1)(
3
16
+
1
24
)×8+
2
3

=
3
16
×8+
1
24
×8+
2
3

=
3
2
+
1
3
+
2
3

=
3
2
+(
1
3
+
2
3
),
=
3
2
+1,
=2
1
2


(2)4.5-(
3
7
+1.5)-
4
7

=4.5-
3
7
-1.5-
4
7

=(4.5-1.5)-(
3
7
+
4
7
),
=3-1,
=2;

(3)(
2
3
+
6
7
×
7
24
)÷
11
32

=(
2
3
+
1
4
)÷
11
32

=
11
12
÷
11
32

=
8
3


(4)
9
20
÷[
1
2
×(
2
5
+
4
5
)],
=
9
20
÷[
1
2
×
6
5
],
=
9
20
÷
3
5

=
3
4
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