问题 解答题
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
)]
答案

(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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