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计算:(1)-2-5+19-13+1=(2)12×(−56)×311÷114=-111-111(3)17-8÷(-2)+4×(-3)=(4)(-16+34-112)×48=(5)(−2)2−|−7|−2×(−12)=(6)−45×[(−12)÷(0.75−1)+(−2)5]=
题目详情
计算:
(1)-2-5+19-13+1=______
(2)
×(−
)×
÷1
=
(3)17-8÷(-2)+4×(-3)=______
(4)(-
+
-
)×48=______
(5)(−2)2−|−7|−2×(−
)=______
(6)−
×[(−
)÷(0.75−1)+(−2)5]=______
(1)-2-5+19-13+1=______
(2)
1 |
2 |
5 |
6 |
3 |
11 |
1 |
4 |
-
1 |
11 |
-
1 |
11 |
(3)17-8÷(-2)+4×(-3)=______
(4)(-
1 |
6 |
3 |
4 |
1 |
12 |
(5)(−2)2−|−7|−2×(−
1 |
2 |
(6)−
4 |
5 |
1 |
2 |
▼优质解答
答案和解析
(1)-2-5+19-13+1,
=-7+19-12,
=0;
(2)
×(−
)×
÷1
,
=-
×
×
×
,
=-
;
(3)17-8÷(-2)+4×(-3),
=17+4-12,
=9;
(4)(-
+
-
)×48,
=
×48,
=24;
(5)(−2)2−|−7|−2×(−
),
=4-7+1,
=-2;
(6)−
×[(−
)÷(0.75−1)+(−2)5],
=-
×(2-32),
=24.
=-7+19-12,
=0;
(2)
1 |
2 |
5 |
6 |
3 |
11 |
1 |
4 |
=-
1 |
2 |
5 |
6 |
3 |
11 |
4 |
5 |
=-
1 |
11 |
(3)17-8÷(-2)+4×(-3),
=17+4-12,
=9;
(4)(-
1 |
6 |
3 |
4 |
1 |
12 |
=
1 |
2 |
=24;
(5)(−2)2−|−7|−2×(−
1 |
2 |
=4-7+1,
=-2;
(6)−
4 |
5 |
1 |
2 |
=-
4 |
5 |
=24.
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