题目内容
|
|
分析:(1)运用乘法的分配律进行简算;
(2)运用乘法的分配律进行简算.
(2)运用乘法的分配律进行简算.
解答:解:(1)
-
×
,
=
×(1-
),
=
×
,
=
;
(2)
×37,
=
×(36+1),
=
×36+
×1,
=5
.
| 2 |
| 9 |
| 7 |
| 16 |
| 2 |
| 9 |
=
| 2 |
| 9 |
| 7 |
| 16 |
=
| 2 |
| 9 |
| 9 |
| 16 |
=
| 1 |
| 8 |
(2)
| 5 |
| 36 |
=
| 5 |
| 36 |
=
| 5 |
| 36 |
| 5 |
| 36 |
=5
| 5 |
| 36 |
点评:此题考查了分数四则混合运算,灵活运用运算定律进行简算.
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