题目内容
[14.8+(6
-4.5)×1
]÷2
.
| 2 |
| 7 |
| 3 |
| 25 |
| 2 |
| 3 |
[14.8+(6
-4.5)×1
]÷2
,
=[14.8+
×
]÷2
,
=[14.8+2]÷2
,
=16.8×
,
=6.3.
| 2 |
| 7 |
| 3 |
| 25 |
| 2 |
| 3 |
=[14.8+
| 25 |
| 14 |
| 28 |
| 25 |
| 2 |
| 3 |
=[14.8+2]÷2
| 2 |
| 3 |
=16.8×
| 3 |
| 8 |
=6.3.
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