题目内容
12
-(5
+
)
| 4 |
| 7 |
| 4 |
| 7 |
| 1 |
| 8 |
分析:运用减法性质即可解答.
解答:解:12
-(5
+
),
=12
-5
-
,
=7-
,
=6
.
| 4 |
| 7 |
| 4 |
| 7 |
| 1 |
| 8 |
=12
| 4 |
| 7 |
| 4 |
| 7 |
| 1 |
| 8 |
=7-
| 1 |
| 8 |
=6
| 7 |
| 8 |
点评:本题主要考查学生运用减法性质解决问题的能力.
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| 4 |
| 7 |
| 4 |
| 7 |
| 1 |
| 8 |
| 4 |
| 7 |
| 4 |
| 7 |
| 1 |
| 8 |
| 4 |
| 7 |
| 4 |
| 7 |
| 1 |
| 8 |
| 1 |
| 8 |
| 7 |
| 8 |