题目内容
计算：(2
+
-2
)×24．
| 1 |
| 8 |
| 2 |
| 3 |
| 3 |
| 4 |
分析：根据乘法分配律简便计算即可求解．
解答：解：(2
+
-2
)×24
=
×24+
×24-
×24
=51+16-66
=1．
| 1 |
| 8 |
| 2 |
| 3 |
| 3 |
| 4 |
=
| 17 |
| 8 |
| 2 |
| 3 |
| 11 |
| 4 |
=51+16-66
=1．
点评：考查了有理数的乘法，注意灵活运用运算律简便计算．
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题目内容
| 1 |
| 8 |
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 8 |
| 2 |
| 3 |
| 3 |
| 4 |
| 17 |
| 8 |
| 2 |
| 3 |
| 11 |
| 4 |