题目内容
[(1
-0.28)×
+1÷(
+
)]×1
.
| 2 |
| 25 |
| 5 |
| 13 |
| 3 |
| 4 |
| 1 |
| 3 |
| 19 |
| 20 |
[(1
-0.28)×
+1÷(
+
)]×1
,
=[(1
+
)×
+1÷
]×1
,
=[
×
+
]×
,
=
×
×
+
×
,
=
+
,
=
.
| 2 |
| 25 |
| 5 |
| 13 |
| 3 |
| 4 |
| 1 |
| 3 |
| 19 |
| 20 |
=[(1
| 2 |
| 25 |
| 7 |
| 25 |
| 5 |
| 13 |
| 13 |
| 12 |
| 19 |
| 20 |
=[
| 34 |
| 25 |
| 5 |
| 13 |
| 12 |
| 13 |
| 39 |
| 20 |
=
| 34 |
| 25 |
| 5 |
| 13 |
| 39 |
| 20 |
| 12 |
| 13 |
| 39 |
| 20 |
=
| 51 |
| 50 |
| 9 |
| 5 |
=
| 141 |
| 50 |
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