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(2012•资中县模拟)用递等式计算,能简算的要简算.1÷[12×(65-710)58×223+213÷1131378×116+618÷163.5×98+3.5×27.05-4-1.05817×16-8÷178.
题目详情
(2012•资中县模拟)
用递等式计算,能简算的要简算. 1÷[
|
| 13
| ||||||||||||||||||||
3.5×98+3.5×2 | 7.05-4-1.05 |
|
▼优质解答
答案和解析
(1)1÷[
×(
-
)],
=1÷[
×
],
=1÷
,
=4;
(2)
×2
+2
÷1
,
=
×
+
×
,
=
+
,
=
;
(3)13
×
+6
÷16,
=13
×
+6
×
,
=(13
+6
)×
,
=20×
,
=
;
(4)3.5×98+3.5×2,
=3.5×(98+2),
=3.5×100,
=350;
(5)7.05-4-1.05,
=(7.05-1.05)-4,
=6-4,
=2;
(6)
1 |
2 |
6 |
5 |
7 |
10 |
=1÷[
1 |
2 |
1 |
2 |
=1÷
1 |
4 |
=4;
(2)
5 |
8 |
2 |
3 |
1 |
3 |
1 |
3 |
=
5 |
8 |
8 |
3 |
7 |
3 |
3 |
4 |
=
5 |
3 |
7 |
4 |
=
41 |
12 |
(3)13
7 |
8 |
1 |
16 |
1 |
8 |
=13
7 |
8 |
1 |
16 |
1 |
8 |
1 |
16 |
=(13
7 |
8 |
1 |
8 |
1 |
16 |
=20×
1 |
16 |
=
5 |
4 |
(4)3.5×98+3.5×2,
=3.5×(98+2),
=3.5×100,
=350;
(5)7.05-4-1.05,
=(7.05-1.05)-4,
=6-4,
=2;
(6)
8<
作业帮用户
2017-11-12
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