题目内容
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 4 |
分析:先把
写成
×
,再运用乘法的分配律进行计算,这样使计算更加简便.
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 2 |
解答:解:
×0.5+1
×
+
,
=
×(
+1
+
),
=
×
,
=
,
=1
.
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 4 |
=
| 1 |
| 2 |
| 3 |
| 4 |
| 1 |
| 2 |
| 1 |
| 2 |
=
| 1 |
| 2 |
| 11 |
| 4 |
=
| 11 |
| 8 |
=1
| 3 |
| 8 |
点评:本题考查了学生能否灵活的分解数,把算式转化成能运用乘法的分配律进行计算.考查了学生的转化能力.
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