直接写出得数：（1）[0.85-（13-0.15）]÷285（2）[（727+2.4÷615）+223]×5（3）12×（17×815-34）-（12712-335-213）-数学
| 5 |
| 31 |
| 8 |
| 3 |
=[
| 51 |
| 7 |
| 12 |
| 31 |
| 8 |
| 3 |
=[
| 4743 |
| 651 |
| 252 |
| 651 |
| 1736 |
| 651 |
=
| 6731 |
| 651 |
=
| 33655 |
| 651 |
=51
| 454 |
| 651 |
（3）
| 1 |
| 2 |
| 8 |
| 15 |
| 3 |
| 4 |
| 7 |
| 12 |
| 3 |
| 5 |
| 1 |
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=（
| 1 |
| 2 |
| 8 |
| 15 |
| 1 |
| 2 |
| 3 |
| 4 |
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| 12 |
| 3 |
| 5 |
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=
| 5 |
| 31 |
| 8 |
| 3 |
| 51 |
| 7 |
| 12 |
| 31 |
| 8 |
| 3 |
| 4743 |
| 651 |
| 252 |
| 651 |
| 1736 |
| 651 |
| 6731 |
| 651 |
| 33655 |
| 651 |
| 454 |
| 651 |
| 1 |
| 2 |
| 8 |
| 15 |
| 3 |
| 4 |
| 7 |
| 12 |
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| 1 |
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