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511÷6+16×611(314+521)×42(712-14)÷13+167.25×20%+2.75×20%45×38+56÷5123.57×[27÷(2.6-35)].
题目详情
| (
| (
| ||||||||||||||||||
7.25×20%+2.75×20% |
| 3.57×[
|
▼优质解答
答案和解析
(1)
÷6+
×
,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(2)(
+
)×42,
=
×42+
×42,
=9+10,
=19;
(3)(
-
)÷
+
,
=
÷
+
,
=1+
,
=1
;
(4)7.25×20%+2.75×20%,
=(7.25+2.75)×20%,
=10×20%,
=2;
(5)
×
+
÷
,
=
+2,
=2
5 |
11 |
1 |
6 |
6 |
11 |
=
5 |
11 |
1 |
6 |
1 |
6 |
6 |
11 |
=(
5 |
11 |
6 |
11 |
1 |
6 |
=1×
1 |
6 |
=
6 |
11 |
(2)(
3 |
14 |
5 |
21 |
=
3 |
14 |
5 |
21 |
=9+10,
=19;
(3)(
7 |
12 |
1 |
4 |
1 |
3 |
1 |
6 |
=
1 |
3 |
1 |
3 |
1 |
6 |
=1+
1 |
6 |
=1
1 |
6 |
(4)7.25×20%+2.75×20%,
=(7.25+2.75)×20%,
=10×20%,
=2;
(5)
4 |
5 |
3 |
8 |
5 |
6 |
5 |
12 |
=
3 |
10 |
=2
作业帮用户
2017-10-01
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