题目内容
（1）〔14
-（3.78-3.78÷1
）×1〕÷3.2
（2）4
×1
+2
÷
+29×
+5.7×2．
| 1 |
| 3 |
| 2 |
| 7 |
（2）4
| 4 |
| 5 |
| 11 |
| 24 |
| 2 |
| 7 |
| 16 |
| 21 |
| 1 |
| 2 |
（1）[14
-（3.78-3.78÷1
）×1]÷3.2，
=[14
-（3.78-3.78×
）×1]÷3.2，
=[14
-3.78×（1-
）×1]÷3.2，
=[14
-3.78×
×1]÷3.2，
=[14
-0.84]÷3.2，
=[14
-
]÷
，
=
×
，
=
；
（2）4
×1
+2
÷
+29×
+5.7×2，
=
×
+
×
+29×
+11.4，
=7+3+14.5+11.4，
=35.9．
| 1 |
| 3 |
| 2 |
| 7 |
=[14
| 1 |
| 3 |
| 7 |
| 9 |
=[14
| 1 |
| 3 |
| 7 |
| 9 |
=[14
| 1 |
| 3 |
| 2 |
| 9 |
=[14
| 1 |
| 3 |
=[14
| 1 |
| 3 |
| 21 |
| 25 |
| 17 |
| 5 |
=
| 334 |
| 25 |
| 5 |
| 17 |
=
| 334 |
| 85 |
（2）4
| 4 |
| 5 |
| 11 |
| 24 |
| 2 |
| 7 |
| 16 |
| 21 |
| 1 |
| 2 |
=
| 24 |
| 5 |
| 35 |
| 24 |
| 16 |
| 7 |
| 21 |
| 16 |
| 1 |
| 2 |
=7+3+14.5+11.4，
=35.9．
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