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(1)-1513-317-423+817(2)(-5)×367+(-7)×(-367)+12×(-367)(3)|-512|×(−56)×311÷114(4)[50-(79-1112+16)×(-6)2]÷(-7)2]÷(-7)2(5)(-991415)×30(6)1(−0.1)3-[-3×(-23)2-113÷(-2
题目详情
(1)-15
-3
-4
+8
(2)(-5)×3
+(-7)×(-3
)+12×(-3
)
(3)|-5
|×(−
)×
÷1
(4)[50-(
-
+
)×(-6)2]÷(-7)2]÷(-7)2
(5)(-99
)×30
(6)
-[-3×(-
)2-1
÷(-2)2].
1 |
3 |
1 |
7 |
2 |
3 |
1 |
7 |
(2)(-5)×3
6 |
7 |
6 |
7 |
6 |
7 |
(3)|-5
1 |
2 |
5 |
6 |
3 |
11 |
1 |
4 |
(4)[50-(
7 |
9 |
11 |
12 |
1 |
6 |
(5)(-99
14 |
15 |
(6)
1 |
(−0.1)3 |
2 |
3 |
1 |
3 |
▼优质解答
答案和解析
1)原式=-15
-4
+8
-3
=-20+5=-15;
(2)原式=3
×(-5+7-12)=-
;
(3)原式=
×(-
)×
×
=-1;
(4)原式=[(50-28+33-6)÷49]÷49=
;
(5)原式=(-100+
)×30=-3000+2=-2998;
(6)原式=-100+
-
=-99.
1 |
3 |
2 |
3 |
1 |
7 |
1 |
7 |
(2)原式=3
6 |
7 |
270 |
7 |
(3)原式=
11 |
2 |
5 |
6 |
3 |
11 |
4 |
5 |
(4)原式=[(50-28+33-6)÷49]÷49=
1 |
49 |
(5)原式=(-100+
1 |
15 |
(6)原式=-100+
4 |
3 |
1 |
3 |
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