题目内容
| 5 |
| 8 |
| 2 |
| 3 |
| 2 |
| 3 |
| 3 |
| 8 |
分析：解答此题应逆用乘法分配律进行简算．
解答：解：
×2
+2
×
=（
+
）×2
=1×2
=2
．
| 5 |
| 8 |
| 2 |
| 3 |
| 2 |
| 3 |
| 3 |
| 8 |
=（
| 5 |
| 8 |
| 3 |
| 8 |
| 2 |
| 3 |
=1×2
| 2 |
| 3 |
=2
| 2 |
| 3 |
点评：乘法分配律是最常用的简便运算的方法，要熟练掌握，灵活运用．
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