题目内容
计算:
(1)(-
)3×(-3)2×(-1)2003
(2)(-3)4÷(2
)2+10
×(-
)
(3)(
-
-
)×36
(4)1
×(-1
)×(-1
)×|-1
|.
(1)(-
| 1 |
| 3 |
(2)(-3)4÷(2
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 3 |
(3)(
| 1 |
| 9 |
| 1 |
| 6 |
| 1 |
| 18 |
(4)1
| 1 |
| 6 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 5 |
(1)原式=(-
)×9×(-1)
=
;
(2)原式=81÷
+
×(-
)
=81×
-
=16-
=
;
(3)原式=
×36-
×36-
×36
=4-6-2
=-4;
(4)原式=
×(-
)×(-
)×
=
.
| 1 |
| 27 |
=
| 1 |
| 3 |
(2)原式=81÷
| 81 |
| 16 |
| 21 |
| 2 |
| 1 |
| 3 |
=81×
| 16 |
| 81 |
| 7 |
| 2 |
=16-
| 7 |
| 2 |
=
| 25 |
| 2 |
(3)原式=
| 1 |
| 9 |
| 1 |
| 6 |
| 1 |
| 18 |
=4-6-2
=-4;
(4)原式=
| 7 |
| 6 |
| 3 |
| 2 |
| 5 |
| 4 |
| 6 |
| 5 |
=
| 27 |
| 8 |
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