题目内容
计算
(1)-12×4-(-6)×5;
(2)4-(-2)3-32÷(-1)3;
(3)-24+3×(-1)4-(-2)3;
(4)(-
+
-
)×(-24);
(5)(-4
)-(-5
)+(-4
)-(+3
);
(6)
×[3÷(-
)2-14];
(7)-14-
×[2-(-3)2];
(8)0.25×(-2)3-[4÷(-
)2+1]+(-1)2007.
(1)-12×4-(-6)×5;
(2)4-(-2)3-32÷(-1)3;
(3)-24+3×(-1)4-(-2)3;
(4)(-
1 |
2 |
2 |
3 |
1 |
4 |
(5)(-4
7 |
8 |
1 |
2 |
1 |
4 |
1 |
8 |
(6)
3 |
2 |
2 |
3 |
(7)-14-
1 |
6 |
(8)0.25×(-2)3-[4÷(-
2 |
3 |
(1)原式=-48-(-30)
=-48+30
=-18;
(2)原式=4-(-8)-9÷(-1)
=4+8+9
=21;
(3)原式=-16+3×1-(-8)
=-16+3+8
=-5;
(4)原式=-
×(-24)+
×(-24)-
×(-24)
=12-16+6
=2;
(5)原式=-4
-3
+5
-4
=-8+1
=-6
;
(6)原式=
×[3×
-1]
=
×
=
;
(7)原式=-1-
×[2-9]
=-1-
×[-7]
=-1+
=
;
(8)原式=0.25×(-8)-[4×
+1]-1
=-2-[9+1]-1
=-2-10-1
=-13.
=-48+30
=-18;
(2)原式=4-(-8)-9÷(-1)
=4+8+9
=21;
(3)原式=-16+3×1-(-8)
=-16+3+8
=-5;
(4)原式=-
1 |
2 |
2 |
3 |
1 |
4 |
=12-16+6
=2;
(5)原式=-4
7 |
8 |
1 |
8 |
1 |
2 |
1 |
4 |
=-8+1
1 |
4 |
=-6
3 |
4 |
(6)原式=
3 |
2 |
9 |
4 |
=
3 |
2 |
23 |
4 |
=
69 |
8 |
(7)原式=-1-
1 |
6 |
=-1-
1 |
6 |
=-1+
7 |
6 |
=
1 |
6 |
(8)原式=0.25×(-8)-[4×
9 |
4 |
=-2-[9+1]-1
=-2-10-1
=-13.
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