题目内容
[4
+(5.4-
)÷7]×
.
| 3 |
| 5 |
| 1 |
| 2 |
| 10 |
| 11 |
[4
+(5.4-
)÷7]×
,
=[4
+4.9÷7]×
,
=[4.6+0.7]×
,
=5.3×
,
=
,
=4
.
| 3 |
| 5 |
| 1 |
| 2 |
| 10 |
| 11 |
=[4
| 3 |
| 5 |
| 10 |
| 11 |
=[4.6+0.7]×
| 10 |
| 11 |
=5.3×
| 10 |
| 11 |
=
| 53 |
| 11 |
=4
| 9 |
| 11 |
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