题目内容
计算:(
-
)×10=______;-4
÷
=______;(-25x8y)÷(-5x4y)=______.
| 1 |
| 5 |
| 1 |
| 2 |
| 3 |
| 32 |
原式=
×10-
×10
=2-5
=-3;
原式=-
÷
=-
=-
;
原式=
=5x4.
故答案为:-3,-
,5x4.
| 1 |
| 5 |
| 1 |
| 2 |
=2-5
=-3;
原式=-
| 48 |
| 32 |
=-
|
=-
| ||
| 2 |
原式=
| 25x8y |
| 5x4y |
=5x4.
故答案为:-3,-
| ||
| 2 |
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