题目内容
(2八12?武汉模拟)计算:(9
-八.8+2
)×(7.6÷
+2
×1.29)=______.
| 9 |
| 9 |
| 它 |
| 9 |
| 它 |
| 9 |
| 2 |
| 9 |
(i
-y.8+二
)×(1.一÷
+二
×1.二i)
=[(i
+二
)-y.8]×(1
×
+二
×
),
=(8-y.8)×
×(1
+二
),
=1.二×
×1y,
=1二×
,
=9y;
故答案为:9y.
| i |
| 9 |
| 4 |
| 9 |
| 4 |
| i |
| 二 |
| i |
=[(i
| i |
| 9 |
| 4 |
| 9 |
| 口 |
| i |
| i |
| 4 |
| 二 |
| i |
| i |
| 4 |
=(8-y.8)×
| i |
| 4 |
| 口 |
| i |
| 二 |
| i |
=1.二×
| i |
| 4 |
=1二×
| i |
| 4 |
=9y;
故答案为:9y.
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