问题:
计算:①
9
-
3
27
+|-
16
|-
(-5)2
;② (-
1
2
)2×
(-2)2
+
1
4
×
3
-64
.
计算:①
-
+|-
|-
;② (-
)2×
+
×
.
9 |
3 | 27 |
16 |
(-5)2 |
1 |
2 |
(-2)2 |
1 |
4 |
3 | -64 |
参考答案: