| 用递等式计算 (
|
(
| ||||||||||
(2-60%)÷
|
|
| 3 |
| 4 |
| 13 |
| 7 |
| 1 |
| 4 |
| 7 |
| 13 |
| 3 |
| 4 |
| 13 |
| 7 |
| 1 |
| 4 |
| 13 |
| 7 |
解:(1)(
=
=6+5 =11; |
|||||||||||||||||||||||||||
(2)(
=
=
=
(3)(2-60%)÷
=
=
=3; |
| 3 |
| 4 |
| 13 |
| 7 |
| 1 |
| 4 |
| 7 |
| 13 |
| 3 |
| 4 |
| 13 |
| 7 |
| 1 |
| 4 |
| 13 |
| 7 |
| 3 |
| 4 |
| 1 |
| 4 |
| 13 |
| 7 |
| 13 |
| 7 |
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