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用递等式计算:(856-35266÷77)×251-0.128÷(1.19+0.41)1415×(57-314÷34)[15×(34-13)+112]÷16.

题目详情
用递等式计算:
(856-35266÷77)×25                          
1-0.128÷(1.19+0.41)
14
15
×(
5
7
-
3
14
÷
3
4

[
1
5
×(
3
4
-
1
3
)+
1
12
1
6
▼优质解答
答案和解析
(1)(856-35266÷77)×25
=(856-458)×25
=398×25
=9950

(2)1-0.128÷(1.19+0.41)
=1-0.128÷1.6
=1-0.08
=0.92

(3)
14
15
×(
5
7
-
3
14
÷
3
4

=
14
15
×(
5
7
-
2
7

=
14
15
×
3
7

=
2
5


(4)[
1
5
×(
3
4
-
1
3
)+
1
12
1
6

=[
1
5
×
5
12
+
1
12
1
6

=(
1
12
+
1
12
÷
1
6

=
1
6
÷
1
6

=1