题目内容
| 2 |
| 3 |
| 1 |
| 12 |
| 1 |
| 3 |
| 1 |
| 12 |
| 2 |
| 3 |
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 12 |
| 1 |
| 12 |
分析:通过观察,此题可运用乘法分配律简算.
解答:解:
×
+
×
=(
+
)×
;
故答案为:
,
,
.
| 2 |
| 3 |
| 1 |
| 12 |
| 1 |
| 3 |
| 1 |
| 12 |
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 12 |
故答案为:
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 12 |
点评:此题重点是认真分析数据,运用学过的运算定律解答.
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