题目内容
[4+(
+
)]×12.
1 |
3 |
1 |
4 |
[4+(
+
)]×12
=4×12+(
+
)×12,
=48+
×12+
×12,
=48+4+3,
=55.
1 |
3 |
1 |
4 |
=4×12+(
1 |
3 |
1 |
4 |
=48+
1 |
3 |
1 |
4 |
=48+4+3,
=55.
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