题目内容
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| 4 |
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| 3 |
| 7 |
分析:先把除法改为乘法,原式变为
×(6-
)×
,然后运用乘法分配律简算(6-
)×
,通过进一步计算,得出结果.
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| 4 |
| 6 |
| 7 |
| 7 |
| 3 |
| 6 |
| 7 |
| 7 |
| 3 |
解答:解:
×(6-
)÷
,
=
×(6-
)×
,
=
×(6×
-
×
),
=
×(14-2),
=
×12,
=3.
| 1 |
| 4 |
| 6 |
| 7 |
| 3 |
| 7 |
=
| 1 |
| 4 |
| 6 |
| 7 |
| 7 |
| 3 |
=
| 1 |
| 4 |
| 7 |
| 3 |
| 6 |
| 7 |
| 7 |
| 3 |
=
| 1 |
| 4 |
=
| 1 |
| 4 |
=3.
点评:完成次题要注意分析式中数据,运用乘法分配律进行简算.
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