题目内容

列递等式计算,能简算的要简算.
9470-104×65
4.49+4.84+4.51+4.1688×(
5
11
-
1
4
[
3
5
-
3
4
-
2
5
)]÷
1
4
[
3
4
-(
5
6
-
2
3
)]÷
5
4
9
20
÷[
1
2
×(
2
5
+
4
5
)]
(1)9470-104×65,
=9470-6760,
=2710;

(2)4.49+4.84+4.51+4.16,
=(4.49+4.51)+(4.84+4.16),
=9+9,
=18;

(3)88×(
5
11
-
1
4
),
=88×
5
11
-
1
4
×88,
=40-22,
=18;

(4)[
3
5
-
3
4
-
2
5
)]÷
1
4

=[
3
5
+
2
5
-
3
4
]÷
1
4

=[1-
3
4
]×4,
=
1
4
×4,
=1;

(5)[
3
4
-(
5
6
-
2
3
)]÷
5
4

=[
3
4
-
1
6
5
4

=
1
2
×
4
5

=
2
5


(6)
9
20
÷[
1
2
×(
2
5
+
4
5
)]

=
9
20
÷[
1
2
×
6
5
],
=
9
20
÷
3
5

=
9
20
×
5
3

=
3
4
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