题目内容
3+
2008÷
.
| 5 | ||||||||||
|
2008÷
| 2007 |
| 2009 |
(1)3+
,
=3+
,
=3+
,
=3+
,
=3+
,
=3+
,
=3
;
(2)2008÷
,
=2008×
,
=(2007+1)×
,
=2007×
+
,
=2009+1
,
=2010
.
| 5 | ||||||||||
|
=3+
| 5 | ||||||||
|
=3+
| 5 | ||||
|
=3+
| 5 | ||
16×
|
=3+
| 5 | ||
|
=3+
| 25 |
| 576 |
=3
| 25 |
| 576 |
(2)2008÷
| 2007 |
| 2009 |
=2008×
| 2009 |
| 2007 |
=(2007+1)×
| 2009 |
| 2007 |
=2007×
| 2009 |
| 2007 |
| 2009 |
| 2007 |
=2009+1
| 2 |
| 2007 |
=2010
| 2 |
| 2007 |
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