题目内容
计算:(1)(3
-4
)÷
(2)
+(2
+3
)(3
-2
).
|
| 6 |
| 12 |
(2)
(-
|
| 3 |
| 2 |
| 2 |
| 3 |
(1)原式=(3×
-4
)÷2
=-
=-
;
(2)原式=|-
+
|+(3
+2
)(3
-2
)
=|-
|+(3
)2-(2
)2
=
+18-12
=
.
| ||
| 3 |
| 6 |
| 3 |
=-
3
| ||
2
|
=-
3
| ||
| 2 |
(2)原式=|-
| 2 |
| 3 |
| 1 |
| 2 |
| 2 |
| 3 |
| 2 |
| 3 |
=|-
| 1 |
| 6 |
| 2 |
| 3 |
=
| 1 |
| 6 |
=
| 37 |
| 6 |
练习册系列答案
相关题目