题目内容
| 8 |
| 17 |
| 1 |
| 23 |
| 9 |
| 17 |
分析:把除法转化为乘法,运用乘法分配律简算.
解答:解:
÷23+
×
,
=
×
+
×
,
=(
+
)×
,
=1×
,
=
.
| 8 |
| 17 |
| 1 |
| 23 |
| 9 |
| 17 |
=
| 8 |
| 17 |
| 1 |
| 23 |
| 1 |
| 23 |
| 9 |
| 17 |
=(
| 8 |
| 17 |
| 9 |
| 17 |
| 1 |
| 23 |
=1×
| 1 |
| 23 |
=
| 1 |
| 23 |
点评:此题主要考查了学生对乘法分配律的掌握与运用情况.
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