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计算:(1)(−81)÷214×(49)÷6(2)−1+5÷(14)×(−4)(3)(−27911)÷9(4)(112+116−1112)÷(112)(5)(−5)÷(−127)×45×(−214)÷7(6)1÷(116−834×27)+718÷1427.
题目详情
计算:
(1)(−81)÷2
×(
)÷6
(2)−1+5÷(
)×(−4)
(3)(−27
)÷9
(4)(1
+1
−1
)÷(
)
(5)(−5)÷(−1
)×
×(−2
)÷7
(6)1÷(1
−8
×
)+
÷
.
(1)(−81)÷2
1 |
4 |
4 |
9 |
(2)−1+5÷(
1 |
4 |
(3)(−27
9 |
11 |
(4)(1
1 |
2 |
1 |
6 |
1 |
12 |
1 |
12 |
(5)(−5)÷(−1
2 |
7 |
4 |
5 |
1 |
4 |
(6)1÷(1
1 |
6 |
3 |
4 |
2 |
7 |
7 |
18 |
14 |
27 |
▼优质解答
答案和解析
(1)原式=-(81×
×
×
)=-
;
(2)原式=-1+5×4×(-4)=-1-80=-81;
(3)原式=-(27×
+
×
)=-3
;
(4)原式=
×12+
×12-
×12=18+14-13=19;
(5)原式=-(5×
×
×
×
)=-1;
(6)原式=1÷(
-
×
)+
×
=1÷(
-
)+
=-
+
=-
.
4 |
9 |
4 |
9 |
1 |
6 |
8 |
3 |
(2)原式=-1+5×4×(-4)=-1-80=-81;
(3)原式=-(27×
1 |
9 |
9 |
11 |
1 |
9 |
1 |
11 |
(4)原式=
3 |
2 |
7 |
6 |
13 |
12 |
(5)原式=-(5×
7 |
9 |
4 |
5 |
9 |
4 |
1 |
7 |
(6)原式=1÷(
7 |
6 |
35 |
4 |
2 |
7 |
7 |
18 |
27 |
14 |
7 |
6 |
5 |
2 |
1 |
4 |
3 |
4 |
1 |
4 |
1 |
2 |
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