23+13×3435×(17+821÷23)20052006×2007(58+127)×8+192716÷[1÷(35-310)].-数学
+
÷
),
=
×(
+
),
=
×
,
=
;
(3)
×2007,
=
×(2006+1),
=
×2006+
×1,
=2005+
,
=2005
;
(4)(
+
)×8+
,
=
×8+
×8+
,
=5+
+
,
=5+(
+
),
=5+1,
=6;
(5)
8 |
21 |
2 |
3 |
=
3 |
5 |
1 |
7 |
4 |
7 |
=
3 |
5 |
5 |
7 |
=
3 |
7 |
(3)
2005 |
2006 |
=
2005 |
2006 |
=
2005 |
2006 |
2005 |
2006 |
=2005+
2005 |
2006 |
=2005
2005 |
2006 |
(4)(
5 |
8 |
1 |
27 |
19 |
27 |
=
5 |
8 |
1 |
27 |
19 |
27 |
=5+
8 |
27 |
19 |
27 |
=5+(
8 |
27 |
19 |
27 |
=5+1,
=6;
(5)