题目内容
8.5×
+0.75×5+6.5÷1
.
| 3 |
| 4 |
| 1 |
| 3 |
8.5×
+0.75×5+6.5÷1
,
=8.5×
+0.75×5+6.5×
,
=(8.5+5+6.5)×0.75,
=20×0.75,
=15.
| 3 |
| 4 |
| 1 |
| 3 |
=8.5×
| 3 |
| 4 |
| 3 |
| 4 |
=(8.5+5+6.5)×0.75,
=20×0.75,
=15.
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