题目内容
怎样算便怎样算:
|
| (
|
| ||||||||||||||||||||||||||
(
| 2008×
|
|
(1)
÷
+
×
=
×
+
×
=(
+
)×
=1×
=
;
(2)
÷(
+
)
=
÷
=
×
=
;
(3)(
+
)×4
=
×4+
×4
=
+1
=1
;
(4)
×
÷
×
=
×
×
×
=(
×
)×(
×
)
=1×
=
;
(5)(
+
)÷
=
×
=
;
(6)2008×
=(2007+1)×
=2007×
+
=2006+
=2006
;
(7)
+(
+
)×
=
+
×
=
+
=
.
| 7 |
| 9 |
| 11 |
| 5 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 7 |
| 9 |
| 5 |
| 11 |
| 2 |
| 9 |
| 5 |
| 11 |
=(
| 7 |
| 9 |
| 2 |
| 9 |
| 5 |
| 11 |
=1×
| 5 |
| 11 |
=
| 5 |
| 11 |
(2)
| 2 |
| 5 |
| 3 |
| 4 |
| 2 |
| 5 |
=
| 2 |
| 5 |
| 23 |
| 20 |
=
| 2 |
| 5 |
| 20 |
| 23 |
=
| 8 |
| 23 |
(3)(
| 1 |
| 8 |
| 1 |
| 4 |
=
| 1 |
| 8 |
| 1 |
| 4 |
=
| 1 |
| 2 |
=1
| 1 |
| 2 |
(4)
| 7 |
| 8 |
| 5 |
| 7 |
| 7 |
| 8 |
| 5 |
| 7 |
=
| 7 |
| 8 |
| 5 |
| 7 |
| 8 |
| 7 |
| 5 |
| 7 |
=(
| 7 |
| 8 |
| 8 |
| 7 |
| 5 |
| 7 |
| 5 |
| 7 |
=1×
| 25 |
| 49 |
=
| 25 |
| 49 |
(5)(
| 7 |
| 8 |
| 13 |
| 16 |
| 13 |
| 16 |
=
| 27 |
| 16 |
| 16 |
| 13 |
=
| 27 |
| 13 |
(6)2008×
| 2006 |
| 2007 |
=(2007+1)×
| 2006 |
| 2007 |
=2007×
| 2006 |
| 2007 |
| 2006 |
| 2007 |
=2006+
| 2006 |
| 2007 |
=2006
| 2006 |
| 2007 |
(7)
| 2 |
| 3 |
| 4 |
| 7 |
| 1 |
| 2 |
| 7 |
| 25 |
=
| 2 |
| 3 |
| 15 |
| 14 |
| 7 |
| 25 |
=
| 2 |
| 3 |
| 3 |
| 10 |
=
| 29 |
| 30 |
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