题目内容
下面各题,怎样简便就怎样算.
÷
÷
×
+
×
[(
-
)÷
].
| 4 |
| 5 |
| 24 |
| 25 |
| 7 |
| 18 |
| 7 |
| 12 |
| 2 |
| 3 |
| 1 |
| 3 |
| 7 |
| 12 |
| 1 |
| 2 |
| 5 |
| 6 |
| 5 |
| 9 |
| 1 |
| 36 |
(1)
| 二 |
| 5 |
| 2二 |
| 25 |
| y |
| 1e |
=
| 5 |
| v |
| y |
| 1e |
=
| 15 |
| y |
(2)
| y |
| 12 |
| 2 |
| t |
| 1 |
| t |
| y |
| 12 |
=(
| 2 |
| t |
| 1 |
| t |
| y |
| 12 |
=1×
| y |
| 12 |
=
| y |
| 12 |
(t)
| 1 |
| 2 |
| 5 |
| v |
| 5 |
| 9 |
| 1 |
| tv |
=
| 1 |
| 2 |
| 5 |
| 1e |
| 1 |
| tv |
=
| 1 |
| 2 |
=5.
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