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怎样简便就怎样算122×11+3939÷13(10.68×56+56×8.52)÷8534×25+14÷12523+(47+12)×7251117+813-(1117-513)[74-(716+0.25)]×89.
题目详情
怎样简便就怎样算 122×11+3939÷13 | (10.68×
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▼优质解答
答案和解析
(1)122×11+3939÷13
=1342+303
=1645;
(2)(10.68×
+
×8.52)÷
=(10.68+8.52)×
÷
=19.2×
×
=10;
(3)
×25+
÷
=
×25+
×25
=(
+
)×25
=25;
(4)
+(
+
)×
=
+
×
=
+
=
;
(5)
+
-(
-
)
=
+
-
+
=
-
+
+
=1;
(6)[
-(
+0.25)]×
=[
-
]×
=
×
=
.
=1342+303
=1645;
(2)(10.68×
5 |
6 |
5 |
6 |
8 |
5 |
=(10.68+8.52)×
5 |
6 |
8 |
5 |
=19.2×
5 |
6 |
5 |
8 |
=10;
(3)
3 |
4 |
1 |
4 |
1 |
25 |
=
3 |
4 |
1 |
4 |
=(
3 |
4 |
1 |
4 |
=25;
(4)
2 |
3 |
4 |
7 |
1 |
2 |
7 |
25 |
=
2 |
3 |
15 |
14 |
7 |
25 |
=
2 |
3 |
3 |
10 |
=
29 |
30 |
(5)
11 |
17 |
8 |
13 |
11 |
17 |
5 |
13 |
=
11 |
17 |
8 |
13 |
11 |
17 |
5 |
13 |
=
11 |
17 |
11 |
17 |
8 |
13 |
5 |
13 |
=1;
(6)[
7 |
4 |
7 |
16 |
8 |
9 |
=[
7 |
4 |
11 |
16 |
8 |
9 |
=
17 |
16 |
8 |
9 |
=
17 |
18 |
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