题目内容
计算下列各题(细心算对哟)
(1)
-
-
+
;
(2)
÷(
×
);
(3)(
-
-
)×(-2
);
(4)[-(2
)2-(-1)2]×
÷(3
)2×|
-(-
)2|.
(1)
| 12 |
| 0.5 |
|
| 18 |
(2)
| 18 |
| 8 |
| 3 | 27 |
(3)(
| 6 |
| 1 |
| 3 |
| 3 |
| 1 |
| 2 |
| 8 |
| 6 |
(4)[-(2
| 2 |
| 1 |
| -0.32 |
| 1 |
| 3 |
| 1 |
| 3 |
| 2 |
| 3 |
(1)原式=2
-
-
+3
=
+
;
(2)原式=3
÷(2
×3)=
;
(3)原式=-12+2
+4
;
(4)原式=(-8-1)×(-
)×
×|
-
|
=9×
=1.
| 3 |
| ||
| 2 |
| ||
| 3 |
| 2 |
5
| ||
| 3 |
5
| ||
| 2 |
(2)原式=3
| 2 |
| 2 |
| 1 |
| 2 |
(3)原式=-12+2
| 2 |
| 3 |
(4)原式=(-8-1)×(-
| 1 |
| 0.09 |
| 9 |
| 10 |
| 1 |
| 3 |
| 4 |
| 9 |
=9×
| 1 |
| 9 |
=1.
练习册系列答案
相关题目