下面各题，怎样简便就怎样算．39÷7+31×170.625×36+38×36-3649÷[（56-12）+（59-518）]20082009×2008-200712+16+112+120+130+142+156+172（29+527）×27×9．-数学
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=
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=
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（4）
| 2008 |
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=
| 2008 |
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| 2008 |
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=2008-
| 2008 |
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=1-
| 2008 |
| 2009 |
=
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| 2009 |
（5）
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=1-
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