题目内容
2×4
-64×(
-
).
1 |
2 |
1 |
16 |
1 |
128 |
2×4
-64×(
-
),
=2×4+2×
-64×
+64×
,
=9-4+
,
=5
.
1 |
2 |
1 |
16 |
1 |
128 |
=2×4+2×
1 |
2 |
1 |
16 |
1 |
128 |
=9-4+
1 |
2 |
=5
1 |
2 |
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