题目内容
计算:(1)(+
)+(-2
)-(-2
)-(+3
);
(2)(-5
)×
-8÷|-2+4|;
(3)(
-
+
)÷(-
);
(4)-32×
-[(-5)2×(-
)-240÷(-4)×
-2].
| 1 |
| 4 |
| 1 |
| 3 |
| 3 |
| 4 |
| 2 |
| 3 |
(2)(-5
| 1 |
| 2 |
| 4 |
| 11 |
(3)(
| 2 |
| 9 |
| 1 |
| 4 |
| 1 |
| 18 |
| 1 |
| 36 |
(4)-32×
| 1 |
| 3 |
| 3 |
| 5 |
| 1 |
| 4 |
(1)原式=
-
+
-
=3-6
=-3;
(2)原式=-
×
-8×
=-2-4
=-6;
(3)原式=
×(-36)
=-1;
(4)原式=-9×
-[25×(-
)+60×
-2]
=-3-(-15+15-2)
=-3+2
=-1.
| 1 |
| 4 |
| 7 |
| 3 |
| 11 |
| 4 |
| 11 |
| 3 |
=3-6
=-3;
(2)原式=-
| 11 |
| 2 |
| 4 |
| 11 |
| 1 |
| 2 |
=-2-4
=-6;
(3)原式=
| 8-9+2 |
| 36 |
=-1;
(4)原式=-9×
| 1 |
| 3 |
| 3 |
| 5 |
| 1 |
| 4 |
=-3-(-15+15-2)
=-3+2
=-1.
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