题目内容
计算.
(1)|-2|+(
)-1×(π-
)0-
+(-1)2;(2)(3
+
-4
)÷
.
(1)|-2|+(
| 1 |
| 3 |
| 2 |
| 9 |
| 18 |
| 1 |
| 5 |
| 50 |
|
| 32 |
(1)原式=2+3×1-3+1
=2+3-3+1
=3;
(2)原式=(9
+
×5
-4×
)÷4
=(9
+
-2
)÷4
=8
÷4
=2.
=2+3-3+1
=3;
(2)原式=(9
| 2 |
| 1 |
| 5 |
| 2 |
| ||
| 2 |
| 2 |
=(9
| 2 |
| 2 |
| 2 |
| 2 |
=8
| 2 |
| 2 |
=2.
练习册系列答案
相关题目