题目内容
| 脱式计算 ①14
| ②4.2÷1.5-1.5×0.6 | ③(4
| ④51.6÷[(3
|
①14
=14
|
| 3 |
| 17 |
=4
| 3 |
| 17 |
②4.2÷1.5-1.5×0.6,
=2.8-0.9,
=1.9;
③(4
| 5 |
| 6 |
| 3 |
| 4 |
| 4 |
| 13 |
| 2 |
| 7 |
=(4
| 10 |
| 12 |
| 9 |
| 12 |
| 28 |
| 91 |
| 26 |
| 91 |
=
| 13 |
| 12 |
| 54 |
| 91 |
=
| 13 |
| 12 |
| 91 |
| 54 |
=
| 1183 |
| 648 |
④51.6÷[(3
| 2 |
| 5 |
| 4 |
| 5 |
=51.6÷[
| 17 |
| 5 |
| 4 |
| 5 |
| 5 |
| 4 |
| 4 |
| 5 |
=51.6÷[
| 68 |
| 25 |
=51.6÷
| 43 |
| 25 |
=51.6×
| 25 |
| 43 |
=30.
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