题目内容
计算:①
-
+|-
|-
;②(-
)2×
+
×
.
| 9 |
| 3 | 27 |
| 16 |
| (-5)2 |
| 1 |
| 2 |
| (-2)2 |
| 1 |
| 4 |
| 3 | -64 |
①原式=3-3+4-5
=-1;
②原式=
×2+
×(-4)
=
-1
=-
.
故答案为:-1,-
.
=-1;
②原式=
| 1 |
| 4 |
| 1 |
| 4 |
=
| 1 |
| 2 |
=-
| 1 |
| 2 |
故答案为:-1,-
| 1 |
| 2 |
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