题目内容
计算:
(1)(
-4
+3
)÷2
(2)(π-1)0+|5-
|-
.
(1)(
| 6 |
|
| 8 |
| 2 |
(2)(π-1)0+|5-
| 27 |
| 48 |
(1)原式=(
-2
+6
)÷2
=(
+4
)÷2
=
÷2
+4
÷2
=
+2;
(2)原式=1+3
-5-4
=-
-4.
| 6 |
| 2 |
| 2 |
| 2 |
=(
| 6 |
| 2 |
| 2 |
=
| 6 |
| 2 |
| 2 |
| 2 |
=
| ||
| 2 |
(2)原式=1+3
| 3 |
| 3 |
=-
| 3 |
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