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递等式计算.(能简算的要简算,并写出主要过程)(1)305×10-10034÷29(2)17617-6.25-334(3)8.53×38+11.47÷223(4)(0.9÷35+412)÷123+316(5)56×[213-(13+0.2)]÷35.

题目详情
递等式计算.(能简算的要简算,并写出主要过程)
(1)305×10-10034÷29
(2)17
6
17
-6.25-3
3
4

(3)8.53×
3
8
+11.47÷2
2
3

(4)(0.9÷
3
5
+4
1
2
)÷1
2
3
+3
1
6

(5)
5
6
×[2
1
3
-(
1
3
+0.2)]÷
3
5
▼优质解答
答案和解析
(1)305×10-10034÷29,
=305×10-10034÷29,
=3050-346,
=2704;

(2)17
6
17
-6.25-3
3
4

=17
6
17
-(6.25+3.75),
=17
6
17
-10,
=7
6
17


(3)8.53×
3
8
+11.47÷2
2
3

=8.53×
3
8
+11.47×
3
8

=(8.53+11.47)×
3
8

=20×
3
8

=
15
2


(4)(0.9÷
3
5
+4
1
2
)÷1
2
3
+3
1
6

=(
3
2
+4
1
2
)÷1
2
3
+3
1
6

=6×
3
5
+3
1
6

=
18
5
+3
1
6

=6
23
30


(5)
5
6
×[2
1
3
-(
1
3
+0.2)]÷
3
5

=
5
6
×[2
1
3
-
1
3
-0.2]÷
3
5

=
5
6
×[2-0.2]÷
3
5

=
5
6
×1.8÷
3
5

=1.5×
5
3

=2.5.